From c06fec5022ebe014af876da2df4a0eee836e97c8 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Fri, 29 Apr 2005 09:37:07 -0700 Subject: Remove bogus BUG() in kernel/exit.c It's old sanity checking that may have been useful for debugging, but is just bogus these days. Noticed by Mattia Belletti. --- kernel/exit.c | 2 -- 1 file changed, 2 deletions(-) (limited to 'kernel') diff --git a/kernel/exit.c b/kernel/exit.c index 39d35935b37..93851bcd958 100644 --- a/kernel/exit.c +++ b/kernel/exit.c @@ -517,8 +517,6 @@ static inline void choose_new_parent(task_t *p, task_t *reaper, task_t *child_re */ BUG_ON(p == reaper || reaper->exit_state >= EXIT_ZOMBIE); p->real_parent = reaper; - if (p->parent == p->real_parent) - BUG(); } static inline void reparent_thread(task_t *p, task_t *father, int traced) -- cgit v1.2.3-70-g09d2 From d59dd4620fb8d6422555a9e2b82a707718e68327 Mon Sep 17 00:00:00 2001 From: "akpm@osdl.org" Date: Sun, 1 May 2005 08:58:47 -0700 Subject: [PATCH] use smp_mb/wmb/rmb where possible Replace a number of memory barriers with smp_ variants. This means we won't take the unnecessary hit on UP machines. Signed-off-by: Anton Blanchard Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/buffer.c | 6 +++--- ipc/mqueue.c | 4 ++-- kernel/kthread.c | 2 +- kernel/profile.c | 2 +- kernel/ptrace.c | 2 +- kernel/stop_machine.c | 10 +++++----- kernel/sys.c | 20 ++++++++++---------- kernel/timer.c | 2 +- lib/rwsem-spinlock.c | 6 +++--- lib/rwsem.c | 4 ++-- mm/mempool.c | 4 ++-- 11 files changed, 31 insertions(+), 31 deletions(-) (limited to 'kernel') diff --git a/fs/buffer.c b/fs/buffer.c index 665db84a1f9..188365c7920 100644 --- a/fs/buffer.c +++ b/fs/buffer.c @@ -218,7 +218,7 @@ struct super_block *freeze_bdev(struct block_device *bdev) sb = get_super(bdev); if (sb && !(sb->s_flags & MS_RDONLY)) { sb->s_frozen = SB_FREEZE_WRITE; - wmb(); + smp_wmb(); sync_inodes_sb(sb, 0); DQUOT_SYNC(sb); @@ -235,7 +235,7 @@ struct super_block *freeze_bdev(struct block_device *bdev) sync_inodes_sb(sb, 1); sb->s_frozen = SB_FREEZE_TRANS; - wmb(); + smp_wmb(); sync_blockdev(sb->s_bdev); @@ -263,7 +263,7 @@ void thaw_bdev(struct block_device *bdev, struct super_block *sb) if (sb->s_op->unlockfs) sb->s_op->unlockfs(sb); sb->s_frozen = SB_UNFROZEN; - wmb(); + smp_wmb(); wake_up(&sb->s_wait_unfrozen); drop_super(sb); } diff --git a/ipc/mqueue.c b/ipc/mqueue.c index cb0cd3cf3b5..33f71520b89 100644 --- a/ipc/mqueue.c +++ b/ipc/mqueue.c @@ -767,7 +767,7 @@ static inline void pipelined_send(struct mqueue_inode_info *info, list_del(&receiver->list); receiver->state = STATE_PENDING; wake_up_process(receiver->task); - wmb(); + smp_wmb(); receiver->state = STATE_READY; } @@ -786,7 +786,7 @@ static inline void pipelined_receive(struct mqueue_inode_info *info) list_del(&sender->list); sender->state = STATE_PENDING; wake_up_process(sender->task); - wmb(); + smp_wmb(); sender->state = STATE_READY; } diff --git a/kernel/kthread.c b/kernel/kthread.c index e377e224410..f50f174e92d 100644 --- a/kernel/kthread.c +++ b/kernel/kthread.c @@ -174,7 +174,7 @@ int kthread_stop(struct task_struct *k) /* Must init completion *before* thread sees kthread_stop_info.k */ init_completion(&kthread_stop_info.done); - wmb(); + smp_wmb(); /* Now set kthread_should_stop() to true, and wake it up. */ kthread_stop_info.k = k; diff --git a/kernel/profile.c b/kernel/profile.c index a38fa70075f..a66be468c42 100644 --- a/kernel/profile.c +++ b/kernel/profile.c @@ -522,7 +522,7 @@ static int __init create_hash_tables(void) return 0; out_cleanup: prof_on = 0; - mb(); + smp_mb(); on_each_cpu(profile_nop, NULL, 0, 1); for_each_online_cpu(cpu) { struct page *page; diff --git a/kernel/ptrace.c b/kernel/ptrace.c index 88b306c4e84..f5cc1cec0fb 100644 --- a/kernel/ptrace.c +++ b/kernel/ptrace.c @@ -135,7 +135,7 @@ int ptrace_attach(struct task_struct *task) (current->gid != task->sgid) || (current->gid != task->gid)) && !capable(CAP_SYS_PTRACE)) goto bad; - rmb(); + smp_rmb(); if (!task->mm->dumpable && !capable(CAP_SYS_PTRACE)) goto bad; /* the same process cannot be attached many times */ diff --git a/kernel/stop_machine.c b/kernel/stop_machine.c index c39ed70af17..6116b25aa7c 100644 --- a/kernel/stop_machine.c +++ b/kernel/stop_machine.c @@ -33,7 +33,7 @@ static int stopmachine(void *cpu) set_cpus_allowed(current, cpumask_of_cpu((int)(long)cpu)); /* Ack: we are alive */ - mb(); /* Theoretically the ack = 0 might not be on this CPU yet. */ + smp_mb(); /* Theoretically the ack = 0 might not be on this CPU yet. */ atomic_inc(&stopmachine_thread_ack); /* Simple state machine */ @@ -43,14 +43,14 @@ static int stopmachine(void *cpu) local_irq_disable(); irqs_disabled = 1; /* Ack: irqs disabled. */ - mb(); /* Must read state first. */ + smp_mb(); /* Must read state first. */ atomic_inc(&stopmachine_thread_ack); } else if (stopmachine_state == STOPMACHINE_PREPARE && !prepared) { /* Everyone is in place, hold CPU. */ preempt_disable(); prepared = 1; - mb(); /* Must read state first. */ + smp_mb(); /* Must read state first. */ atomic_inc(&stopmachine_thread_ack); } /* Yield in first stage: migration threads need to @@ -62,7 +62,7 @@ static int stopmachine(void *cpu) } /* Ack: we are exiting. */ - mb(); /* Must read state first. */ + smp_mb(); /* Must read state first. */ atomic_inc(&stopmachine_thread_ack); if (irqs_disabled) @@ -77,7 +77,7 @@ static int stopmachine(void *cpu) static void stopmachine_set_state(enum stopmachine_state state) { atomic_set(&stopmachine_thread_ack, 0); - wmb(); + smp_wmb(); stopmachine_state = state; while (atomic_read(&stopmachine_thread_ack) != stopmachine_num_threads) cpu_relax(); diff --git a/kernel/sys.c b/kernel/sys.c index 462d78d5589..df2ddcc6863 100644 --- a/kernel/sys.c +++ b/kernel/sys.c @@ -525,7 +525,7 @@ asmlinkage long sys_setregid(gid_t rgid, gid_t egid) if (new_egid != old_egid) { current->mm->dumpable = 0; - wmb(); + smp_wmb(); } if (rgid != (gid_t) -1 || (egid != (gid_t) -1 && egid != old_rgid)) @@ -556,7 +556,7 @@ asmlinkage long sys_setgid(gid_t gid) if(old_egid != gid) { current->mm->dumpable=0; - wmb(); + smp_wmb(); } current->gid = current->egid = current->sgid = current->fsgid = gid; } @@ -565,7 +565,7 @@ asmlinkage long sys_setgid(gid_t gid) if(old_egid != gid) { current->mm->dumpable=0; - wmb(); + smp_wmb(); } current->egid = current->fsgid = gid; } @@ -596,7 +596,7 @@ static int set_user(uid_t new_ruid, int dumpclear) if(dumpclear) { current->mm->dumpable = 0; - wmb(); + smp_wmb(); } current->uid = new_ruid; return 0; @@ -653,7 +653,7 @@ asmlinkage long sys_setreuid(uid_t ruid, uid_t euid) if (new_euid != old_euid) { current->mm->dumpable=0; - wmb(); + smp_wmb(); } current->fsuid = current->euid = new_euid; if (ruid != (uid_t) -1 || @@ -703,7 +703,7 @@ asmlinkage long sys_setuid(uid_t uid) if (old_euid != uid) { current->mm->dumpable = 0; - wmb(); + smp_wmb(); } current->fsuid = current->euid = uid; current->suid = new_suid; @@ -748,7 +748,7 @@ asmlinkage long sys_setresuid(uid_t ruid, uid_t euid, uid_t suid) if (euid != current->euid) { current->mm->dumpable = 0; - wmb(); + smp_wmb(); } current->euid = euid; } @@ -798,7 +798,7 @@ asmlinkage long sys_setresgid(gid_t rgid, gid_t egid, gid_t sgid) if (egid != current->egid) { current->mm->dumpable = 0; - wmb(); + smp_wmb(); } current->egid = egid; } @@ -845,7 +845,7 @@ asmlinkage long sys_setfsuid(uid_t uid) if (uid != old_fsuid) { current->mm->dumpable = 0; - wmb(); + smp_wmb(); } current->fsuid = uid; } @@ -875,7 +875,7 @@ asmlinkage long sys_setfsgid(gid_t gid) if (gid != old_fsgid) { current->mm->dumpable = 0; - wmb(); + smp_wmb(); } current->fsgid = gid; key_fsgid_changed(current); diff --git a/kernel/timer.c b/kernel/timer.c index ecb3d67c0e1..207aa4f0aa1 100644 --- a/kernel/timer.c +++ b/kernel/timer.c @@ -1007,7 +1007,7 @@ asmlinkage long sys_getppid(void) * Make sure we read the pid before re-reading the * parent pointer: */ - rmb(); + smp_rmb(); parent = me->group_leader->real_parent; if (old != parent) continue; diff --git a/lib/rwsem-spinlock.c b/lib/rwsem-spinlock.c index 21f0db2c971..40ffde940a8 100644 --- a/lib/rwsem-spinlock.c +++ b/lib/rwsem-spinlock.c @@ -76,7 +76,7 @@ __rwsem_do_wake(struct rw_semaphore *sem, int wakewrite) list_del(&waiter->list); tsk = waiter->task; /* Don't touch waiter after ->task has been NULLed */ - mb(); + smp_mb(); waiter->task = NULL; wake_up_process(tsk); put_task_struct(tsk); @@ -91,7 +91,7 @@ __rwsem_do_wake(struct rw_semaphore *sem, int wakewrite) list_del(&waiter->list); tsk = waiter->task; - mb(); + smp_mb(); waiter->task = NULL; wake_up_process(tsk); put_task_struct(tsk); @@ -123,7 +123,7 @@ __rwsem_wake_one_writer(struct rw_semaphore *sem) list_del(&waiter->list); tsk = waiter->task; - mb(); + smp_mb(); waiter->task = NULL; wake_up_process(tsk); put_task_struct(tsk); diff --git a/lib/rwsem.c b/lib/rwsem.c index 7644089ec8f..62fa4eba9ff 100644 --- a/lib/rwsem.c +++ b/lib/rwsem.c @@ -74,7 +74,7 @@ __rwsem_do_wake(struct rw_semaphore *sem, int downgrading) */ list_del(&waiter->list); tsk = waiter->task; - mb(); + smp_mb(); waiter->task = NULL; wake_up_process(tsk); put_task_struct(tsk); @@ -117,7 +117,7 @@ __rwsem_do_wake(struct rw_semaphore *sem, int downgrading) waiter = list_entry(next, struct rwsem_waiter, list); next = waiter->list.next; tsk = waiter->task; - mb(); + smp_mb(); waiter->task = NULL; wake_up_process(tsk); put_task_struct(tsk); diff --git a/mm/mempool.c b/mm/mempool.c index e9a0a6337b2..c9f3d462042 100644 --- a/mm/mempool.c +++ b/mm/mempool.c @@ -229,7 +229,7 @@ repeat_alloc: /* Now start performing page reclaim */ gfp_temp = gfp_mask; prepare_to_wait(&pool->wait, &wait, TASK_UNINTERRUPTIBLE); - mb(); + smp_mb(); if (!pool->curr_nr) io_schedule(); finish_wait(&pool->wait, &wait); @@ -250,7 +250,7 @@ void mempool_free(void *element, mempool_t *pool) { unsigned long flags; - mb(); + smp_mb(); if (pool->curr_nr < pool->min_nr) { spin_lock_irqsave(&pool->lock, flags); if (pool->curr_nr < pool->min_nr) { -- cgit v1.2.3-70-g09d2 From e43379f10b42194b8a6e1de342cfb44463c0f6da Mon Sep 17 00:00:00 2001 From: Matt Mackall Date: Sun, 1 May 2005 08:59:00 -0700 Subject: [PATCH] nice and rt-prio rlimits Add a pair of rlimits for allowing non-root tasks to raise nice and rt priorities. Defaults to traditional behavior. Originally written by Chris Wright. The patch implements a simple rlimit ceiling for the RT (and nice) priorities a task can set. The rlimit defaults to 0, meaning no change in behavior by default. A value of 50 means RT priority levels 1-50 are allowed. A value of 100 means all 99 privilege levels from 1 to 99 are allowed. CAP_SYS_NICE is blanket permission. (akpm: see http://www.uwsg.iu.edu/hypermail/linux/kernel/0503.1/1921.html for tips on integrating this with PAM). Signed-off-by: Matt Mackall Acked-by: Ingo Molnar Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/asm-generic/resource.h | 7 ++++++- include/linux/sched.h | 1 + kernel/sched.c | 25 +++++++++++++++++++------ kernel/sys.c | 2 +- 4 files changed, 27 insertions(+), 8 deletions(-) (limited to 'kernel') diff --git a/include/asm-generic/resource.h b/include/asm-generic/resource.h index b1fcda9eac2..cfe3692b23e 100644 --- a/include/asm-generic/resource.h +++ b/include/asm-generic/resource.h @@ -41,8 +41,11 @@ #define RLIMIT_LOCKS 10 /* maximum file locks held */ #define RLIMIT_SIGPENDING 11 /* max number of pending signals */ #define RLIMIT_MSGQUEUE 12 /* maximum bytes in POSIX mqueues */ +#define RLIMIT_NICE 13 /* max nice prio allowed to raise to + 0-39 for nice level 19 .. -20 */ +#define RLIMIT_RTPRIO 14 /* maximum realtime priority */ -#define RLIM_NLIMITS 13 +#define RLIM_NLIMITS 15 /* * SuS says limits have to be unsigned. @@ -81,6 +84,8 @@ [RLIMIT_LOCKS] = { RLIM_INFINITY, RLIM_INFINITY }, \ [RLIMIT_SIGPENDING] = { 0, 0 }, \ [RLIMIT_MSGQUEUE] = { MQ_BYTES_MAX, MQ_BYTES_MAX }, \ + [RLIMIT_NICE] = { 0, 0 }, \ + [RLIMIT_RTPRIO] = { 0, 0 }, \ } #endif /* __KERNEL__ */ diff --git a/include/linux/sched.h b/include/linux/sched.h index 1cced971232..8960f99ea12 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -845,6 +845,7 @@ extern void sched_idle_next(void); extern void set_user_nice(task_t *p, long nice); extern int task_prio(const task_t *p); extern int task_nice(const task_t *p); +extern int can_nice(const task_t *p, const int nice); extern int task_curr(const task_t *p); extern int idle_cpu(int cpu); extern int sched_setscheduler(struct task_struct *, int, struct sched_param *); diff --git a/kernel/sched.c b/kernel/sched.c index 9bb7489ee64..5dadcc6df7d 100644 --- a/kernel/sched.c +++ b/kernel/sched.c @@ -3223,6 +3223,19 @@ out_unlock: EXPORT_SYMBOL(set_user_nice); +/* + * can_nice - check if a task can reduce its nice value + * @p: task + * @nice: nice value + */ +int can_nice(const task_t *p, const int nice) +{ + /* convert nice value [19,-20] to rlimit style value [0,39] */ + int nice_rlim = 19 - nice; + return (nice_rlim <= p->signal->rlim[RLIMIT_NICE].rlim_cur || + capable(CAP_SYS_NICE)); +} + #ifdef __ARCH_WANT_SYS_NICE /* @@ -3242,12 +3255,8 @@ asmlinkage long sys_nice(int increment) * We don't have to worry. Conceptually one call occurs first * and we have a single winner. */ - if (increment < 0) { - if (!capable(CAP_SYS_NICE)) - return -EPERM; - if (increment < -40) - increment = -40; - } + if (increment < -40) + increment = -40; if (increment > 40) increment = 40; @@ -3257,6 +3266,9 @@ asmlinkage long sys_nice(int increment) if (nice > 19) nice = 19; + if (increment < 0 && !can_nice(current, nice)) + return -EPERM; + retval = security_task_setnice(current, nice); if (retval) return retval; @@ -3372,6 +3384,7 @@ recheck: return -EINVAL; if ((policy == SCHED_FIFO || policy == SCHED_RR) && + param->sched_priority > p->signal->rlim[RLIMIT_RTPRIO].rlim_cur && !capable(CAP_SYS_NICE)) return -EPERM; if ((current->euid != p->euid) && (current->euid != p->uid) && diff --git a/kernel/sys.c b/kernel/sys.c index df2ddcc6863..7f43d6e62c7 100644 --- a/kernel/sys.c +++ b/kernel/sys.c @@ -227,7 +227,7 @@ static int set_one_prio(struct task_struct *p, int niceval, int error) error = -EPERM; goto out; } - if (niceval < task_nice(p) && !capable(CAP_SYS_NICE)) { + if (niceval < task_nice(p) && !can_nice(p, niceval)) { error = -EACCES; goto out; } -- cgit v1.2.3-70-g09d2 From d59745ce3e7aa13856bca16d3bcbb95041775ff6 Mon Sep 17 00:00:00 2001 From: Matt Mackall Date: Sun, 1 May 2005 08:59:02 -0700 Subject: [PATCH] clean up kernel messages Arrange for all kernel printks to be no-ops. Only available if CONFIG_EMBEDDED. This patch saves about 375k on my laptop config and nearly 100k on minimal configs. Signed-off-by: Matt Mackall Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/i386/kernel/head.S | 2 ++ include/linux/kernel.h | 9 +++++++++ init/Kconfig | 11 +++++++++++ kernel/printk.c | 27 +++++++++++++++++++++------ 4 files changed, 43 insertions(+), 6 deletions(-) (limited to 'kernel') diff --git a/arch/i386/kernel/head.S b/arch/i386/kernel/head.S index d273fd74619..e966fc8c44c 100644 --- a/arch/i386/kernel/head.S +++ b/arch/i386/kernel/head.S @@ -380,6 +380,7 @@ rp_sidt: ALIGN ignore_int: cld +#ifdef CONFIG_PRINTK pushl %eax pushl %ecx pushl %edx @@ -400,6 +401,7 @@ ignore_int: popl %edx popl %ecx popl %eax +#endif iret /* diff --git a/include/linux/kernel.h b/include/linux/kernel.h index 7c1cba4a527..e25b97062ce 100644 --- a/include/linux/kernel.h +++ b/include/linux/kernel.h @@ -115,10 +115,19 @@ extern int __kernel_text_address(unsigned long addr); extern int kernel_text_address(unsigned long addr); extern int session_of_pgrp(int pgrp); +#ifdef CONFIG_PRINTK asmlinkage int vprintk(const char *fmt, va_list args) __attribute__ ((format (printf, 1, 0))); asmlinkage int printk(const char * fmt, ...) __attribute__ ((format (printf, 1, 2))); +#else +static inline int vprintk(const char *s, va_list args) + __attribute__ ((format (printf, 1, 0))); +static inline int vprintk(const char *s, va_list args) { return 0; } +static inline int printk(const char *s, ...) + __attribute__ ((format (printf, 1, 2))); +static inline int printk(const char *s, ...) { return 0; } +#endif unsigned long int_sqrt(unsigned long); diff --git a/init/Kconfig b/init/Kconfig index 42dca393b94..40d286d1d11 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -275,6 +275,17 @@ config KALLSYMS_EXTRA_PASS reported. KALLSYMS_EXTRA_PASS is only a temporary workaround while you wait for kallsyms to be fixed. + +config PRINTK + default y + bool "Enable support for printk" if EMBEDDED + help + This option enables normal printk support. Removing it + eliminates most of the message strings from the kernel image + and makes the kernel more or less silent. As this makes it + very difficult to diagnose system problems, saying N here is + strongly discouraged. + config BUG bool "BUG() support" if EMBEDDED default y diff --git a/kernel/printk.c b/kernel/printk.c index 1498689548d..290a07ce2c8 100644 --- a/kernel/printk.c +++ b/kernel/printk.c @@ -85,10 +85,6 @@ static int console_locked; */ static DEFINE_SPINLOCK(logbuf_lock); -static char __log_buf[__LOG_BUF_LEN]; -static char *log_buf = __log_buf; -static int log_buf_len = __LOG_BUF_LEN; - #define LOG_BUF_MASK (log_buf_len-1) #define LOG_BUF(idx) (log_buf[(idx) & LOG_BUF_MASK]) @@ -99,7 +95,6 @@ static int log_buf_len = __LOG_BUF_LEN; static unsigned long log_start; /* Index into log_buf: next char to be read by syslog() */ static unsigned long con_start; /* Index into log_buf: next char to be sent to consoles */ static unsigned long log_end; /* Index into log_buf: most-recently-written-char + 1 */ -static unsigned long logged_chars; /* Number of chars produced since last read+clear operation */ /* * Array of consoles built from command line options (console=) @@ -120,6 +115,13 @@ static int preferred_console = -1; /* Flag: console code may call schedule() */ static int console_may_schedule; +#ifdef CONFIG_PRINTK + +static char __log_buf[__LOG_BUF_LEN]; +static char *log_buf = __log_buf; +static int log_buf_len = __LOG_BUF_LEN; +static unsigned long logged_chars; /* Number of chars produced since last read+clear operation */ + /* * Setup a list of consoles. Called from init/main.c */ @@ -535,6 +537,7 @@ __setup("time", printk_time_setup); * then changes console_loglevel may break. This is because console_loglevel * is inspected when the actual printing occurs. */ + asmlinkage int printk(const char *fmt, ...) { va_list args; @@ -655,6 +658,18 @@ out: EXPORT_SYMBOL(printk); EXPORT_SYMBOL(vprintk); +#else + +asmlinkage long sys_syslog(int type, char __user * buf, int len) +{ + return 0; +} + +int do_syslog(int type, char __user * buf, int len) { return 0; } +static void call_console_drivers(unsigned long start, unsigned long end) {} + +#endif + /** * acquire_console_sem - lock the console system for exclusive use. * @@ -931,7 +946,7 @@ int unregister_console(struct console * console) return res; } EXPORT_SYMBOL(unregister_console); - + /** * tty_write_message - write a message to a certain tty, not just the console. * -- cgit v1.2.3-70-g09d2 From 66cf8f1443301a1d5bc9c21709e4264e6919a3e1 Mon Sep 17 00:00:00 2001 From: "Paul E. McKenney" Date: Sun, 1 May 2005 08:59:03 -0700 Subject: [PATCH] kernel/rcupdate.c: make the exports EXPORT_SYMBOL_GPL The gpl exports need to be put back. Moving them to GPL -- but in a measured manner, as I proposed on this list some months ago -- is fine. Changing these particular exports precipitously is most definitely -not- fine. Here is my earlier proposal: http://marc.theaimsgroup.com/?l=linux-kernel&m=110520930301813&w=2 See below for a patch that puts the exports back, along with an updated version of my earlier patch that starts the process of moving them to GPL. I will also be following this message with RFC patches that introduce two (EXPORT_SYMBOL_GPL) interfaces to replace synchronize_kernel(), which then becomes deprecated. Signed-off-by: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- Documentation/feature-removal-schedule.txt | 15 +++++++++++++++ kernel/rcupdate.c | 6 +++--- 2 files changed, 18 insertions(+), 3 deletions(-) (limited to 'kernel') diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt index 56627c1546d..d3c52dd24a2 100644 --- a/Documentation/feature-removal-schedule.txt +++ b/Documentation/feature-removal-schedule.txt @@ -48,3 +48,18 @@ When: April 2005 Why: Replaced by ->compat_ioctl in file_operations and other method vecors. Who: Andi Kleen , Christoph Hellwig + +--------------------------- + +What: RCU API moves to EXPORT_SYMBOL_GPL +When: April 2006 +Files: include/linux/rcupdate.h, kernel/rcupdate.c +Why: Outside of Linux, the only implementations of anything even + vaguely resembling RCU that I am aware of are in DYNIX/ptx, + VM/XA, Tornado, and K42. I do not expect anyone to port binary + drivers or kernel modules from any of these, since the first two + are owned by IBM and the last two are open-source research OSes. + So these will move to GPL after a grace period to allow + people, who might be using implementations that I am not aware + of, to adjust to this upcoming change. +Who: Paul E. McKenney diff --git a/kernel/rcupdate.c b/kernel/rcupdate.c index d00eded75d7..ad497722f04 100644 --- a/kernel/rcupdate.c +++ b/kernel/rcupdate.c @@ -465,6 +465,6 @@ void synchronize_kernel(void) } module_param(maxbatch, int, 0); -EXPORT_SYMBOL_GPL(call_rcu); -EXPORT_SYMBOL_GPL(call_rcu_bh); -EXPORT_SYMBOL_GPL(synchronize_kernel); +EXPORT_SYMBOL(call_rcu); /* WARNING: GPL-only in April 2006. */ +EXPORT_SYMBOL(call_rcu_bh); /* WARNING: GPL-only in April 2006. */ +EXPORT_SYMBOL(synchronize_kernel); /* WARNING: GPL-only in April 2006. */ -- cgit v1.2.3-70-g09d2 From 9b06e818985d139fd9e82c28297f7744e1b484e1 Mon Sep 17 00:00:00 2001 From: "Paul E. McKenney" Date: Sun, 1 May 2005 08:59:04 -0700 Subject: [PATCH] Deprecate synchronize_kernel, GPL replacement The synchronize_kernel() primitive is used for quite a few different purposes: waiting for RCU readers, waiting for NMIs, waiting for interrupts, and so on. This makes RCU code harder to read, since synchronize_kernel() might or might not have matching rcu_read_lock()s. This patch creates a new synchronize_rcu() that is to be used for RCU readers and a new synchronize_sched() that is used for the rest. These two new primitives currently have the same implementation, but this is might well change with additional real-time support. Both new primitives are GPL-only, the old primitive is deprecated. Signed-off-by: Paul E. McKenney Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/rcupdate.h | 23 ++++++++++++++++++++--- kernel/rcupdate.c | 16 ++++++++++++++-- 2 files changed, 34 insertions(+), 5 deletions(-) (limited to 'kernel') diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h index 4d747433916..fd276adf0fd 100644 --- a/include/linux/rcupdate.h +++ b/include/linux/rcupdate.h @@ -157,9 +157,9 @@ static inline int rcu_pending(int cpu) /** * rcu_read_lock - mark the beginning of an RCU read-side critical section. * - * When synchronize_kernel() is invoked on one CPU while other CPUs + * When synchronize_rcu() is invoked on one CPU while other CPUs * are within RCU read-side critical sections, then the - * synchronize_kernel() is guaranteed to block until after all the other + * synchronize_rcu() is guaranteed to block until after all the other * CPUs exit their critical sections. Similarly, if call_rcu() is invoked * on one CPU while other CPUs are within RCU read-side critical * sections, invocation of the corresponding RCU callback is deferred @@ -256,6 +256,21 @@ static inline int rcu_pending(int cpu) (p) = (v); \ }) +/** + * synchronize_sched - block until all CPUs have exited any non-preemptive + * kernel code sequences. + * + * This means that all preempt_disable code sequences, including NMI and + * hardware-interrupt handlers, in progress on entry will have completed + * before this primitive returns. However, this does not guarantee that + * softirq handlers will have completed, since in some kernels + * + * This primitive provides the guarantees made by the (deprecated) + * synchronize_kernel() API. In contrast, synchronize_rcu() only + * guarantees that rcu_read_lock() sections will have completed. + */ +#define synchronize_sched() synchronize_rcu() + extern void rcu_init(void); extern void rcu_check_callbacks(int cpu, int user); extern void rcu_restart_cpu(int cpu); @@ -265,7 +280,9 @@ extern void FASTCALL(call_rcu(struct rcu_head *head, void (*func)(struct rcu_head *head))); extern void FASTCALL(call_rcu_bh(struct rcu_head *head, void (*func)(struct rcu_head *head))); -extern void synchronize_kernel(void); +extern __deprecated_for_modules void synchronize_kernel(void); +extern void synchronize_rcu(void); +void synchronize_idle(void); #endif /* __KERNEL__ */ #endif /* __LINUX_RCUPDATE_H */ diff --git a/kernel/rcupdate.c b/kernel/rcupdate.c index ad497722f04..f436993bd59 100644 --- a/kernel/rcupdate.c +++ b/kernel/rcupdate.c @@ -444,15 +444,18 @@ static void wakeme_after_rcu(struct rcu_head *head) } /** - * synchronize_kernel - wait until a grace period has elapsed. + * synchronize_rcu - wait until a grace period has elapsed. * * Control will return to the caller some time after a full grace * period has elapsed, in other words after all currently executing RCU * read-side critical sections have completed. RCU read-side critical * sections are delimited by rcu_read_lock() and rcu_read_unlock(), * and may be nested. + * + * If your read-side code is not protected by rcu_read_lock(), do -not- + * use synchronize_rcu(). */ -void synchronize_kernel(void) +void synchronize_rcu(void) { struct rcu_synchronize rcu; @@ -464,7 +467,16 @@ void synchronize_kernel(void) wait_for_completion(&rcu.completion); } +/* + * Deprecated, use synchronize_rcu() or synchronize_sched() instead. + */ +void synchronize_kernel(void) +{ + synchronize_rcu(); +} + module_param(maxbatch, int, 0); EXPORT_SYMBOL(call_rcu); /* WARNING: GPL-only in April 2006. */ EXPORT_SYMBOL(call_rcu_bh); /* WARNING: GPL-only in April 2006. */ +EXPORT_SYMBOL_GPL(synchronize_rcu); EXPORT_SYMBOL(synchronize_kernel); /* WARNING: GPL-only in April 2006. */ -- cgit v1.2.3-70-g09d2 From fbd568a3e61a7decb8a754ad952aaa5b5c82e9e5 Mon Sep 17 00:00:00 2001 From: "Paul E. McKenney" Date: Sun, 1 May 2005 08:59:04 -0700 Subject: [PATCH] Change synchronize_kernel to _rcu and _sched This patch changes calls to synchronize_kernel(), deprecated in the earlier "Deprecate synchronize_kernel, GPL replacement" patch to instead call the new synchronize_rcu() and synchronize_sched() APIs. Signed-off-by: Paul E. McKenney Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/i386/oprofile/nmi_timer_int.c | 2 +- arch/ppc64/kernel/HvLpEvent.c | 2 +- drivers/acpi/processor_idle.c | 2 +- drivers/char/ipmi/ipmi_si_intf.c | 4 ++-- drivers/input/keyboard/atkbd.c | 2 +- drivers/md/multipath.c | 2 +- drivers/md/raid1.c | 2 +- drivers/md/raid10.c | 2 +- drivers/md/raid5.c | 2 +- drivers/md/raid6main.c | 2 +- drivers/net/r8169.c | 2 +- drivers/s390/cio/airq.c | 4 ++-- kernel/module.c | 2 +- kernel/profile.c | 2 +- mm/slab.c | 2 +- net/core/dev.c | 2 +- 16 files changed, 18 insertions(+), 18 deletions(-) (limited to 'kernel') diff --git a/arch/i386/oprofile/nmi_timer_int.c b/arch/i386/oprofile/nmi_timer_int.c index b2e462abf33..c58d0c14f27 100644 --- a/arch/i386/oprofile/nmi_timer_int.c +++ b/arch/i386/oprofile/nmi_timer_int.c @@ -36,7 +36,7 @@ static void timer_stop(void) { enable_timer_nmi_watchdog(); unset_nmi_callback(); - synchronize_kernel(); + synchronize_sched(); /* Allow already-started NMIs to complete. */ } diff --git a/arch/ppc64/kernel/HvLpEvent.c b/arch/ppc64/kernel/HvLpEvent.c index 9802beefa21..f8f19637f73 100644 --- a/arch/ppc64/kernel/HvLpEvent.c +++ b/arch/ppc64/kernel/HvLpEvent.c @@ -45,7 +45,7 @@ int HvLpEvent_unregisterHandler( HvLpEvent_Type eventType ) /* We now sleep until all other CPUs have scheduled. This ensures that * the deletion is seen by all other CPUs, and that the deleted handler * isn't still running on another CPU when we return. */ - synchronize_kernel(); + synchronize_rcu(); } } return rc; diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c index 05a17812d52..ff64d333e95 100644 --- a/drivers/acpi/processor_idle.c +++ b/drivers/acpi/processor_idle.c @@ -838,7 +838,7 @@ int acpi_processor_cst_has_changed (struct acpi_processor *pr) /* Fall back to the default idle loop */ pm_idle = pm_idle_save; - synchronize_kernel(); + synchronize_sched(); /* Relies on interrupts forcing exit from idle. */ pr->flags.power = 0; result = acpi_processor_get_power_info(pr); diff --git a/drivers/char/ipmi/ipmi_si_intf.c b/drivers/char/ipmi/ipmi_si_intf.c index 29de259a981..44a7f13c788 100644 --- a/drivers/char/ipmi/ipmi_si_intf.c +++ b/drivers/char/ipmi/ipmi_si_intf.c @@ -2199,7 +2199,7 @@ static int init_one_smi(int intf_num, struct smi_info **smi) /* Wait until we know that we are out of any interrupt handlers might have been running before we freed the interrupt. */ - synchronize_kernel(); + synchronize_sched(); if (new_smi->si_sm) { if (new_smi->handlers) @@ -2312,7 +2312,7 @@ static void __exit cleanup_one_si(struct smi_info *to_clean) /* Wait until we know that we are out of any interrupt handlers might have been running before we freed the interrupt. */ - synchronize_kernel(); + synchronize_sched(); /* Wait for the timer to stop. This avoids problems with race conditions removing the timer here. */ diff --git a/drivers/input/keyboard/atkbd.c b/drivers/input/keyboard/atkbd.c index f7304f0ce54..ff66ed4ee2c 100644 --- a/drivers/input/keyboard/atkbd.c +++ b/drivers/input/keyboard/atkbd.c @@ -678,7 +678,7 @@ static void atkbd_disconnect(struct serio *serio) atkbd_disable(atkbd); /* make sure we don't have a command in flight */ - synchronize_kernel(); + synchronize_sched(); /* Allow atkbd_interrupt()s to complete. */ flush_scheduled_work(); device_remove_file(&serio->dev, &atkbd_attr_extra); diff --git a/drivers/md/multipath.c b/drivers/md/multipath.c index c9b134cd153..1891e4930dc 100644 --- a/drivers/md/multipath.c +++ b/drivers/md/multipath.c @@ -355,7 +355,7 @@ static int multipath_remove_disk(mddev_t *mddev, int number) goto abort; } p->rdev = NULL; - synchronize_kernel(); + synchronize_rcu(); if (atomic_read(&rdev->nr_pending)) { /* lost the race, try later */ err = -EBUSY; diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c index a389394b52f..83380b5d659 100644 --- a/drivers/md/raid1.c +++ b/drivers/md/raid1.c @@ -797,7 +797,7 @@ static int raid1_remove_disk(mddev_t *mddev, int number) goto abort; } p->rdev = NULL; - synchronize_kernel(); + synchronize_rcu(); if (atomic_read(&rdev->nr_pending)) { /* lost the race, try later */ err = -EBUSY; diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c index b100bfe4fdc..e9dc2876a62 100644 --- a/drivers/md/raid10.c +++ b/drivers/md/raid10.c @@ -977,7 +977,7 @@ static int raid10_remove_disk(mddev_t *mddev, int number) goto abort; } p->rdev = NULL; - synchronize_kernel(); + synchronize_rcu(); if (atomic_read(&rdev->nr_pending)) { /* lost the race, try later */ err = -EBUSY; diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index 52c3a81c4aa..e96e2a10a9c 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -1873,7 +1873,7 @@ static int raid5_remove_disk(mddev_t *mddev, int number) goto abort; } p->rdev = NULL; - synchronize_kernel(); + synchronize_rcu(); if (atomic_read(&rdev->nr_pending)) { /* lost the race, try later */ err = -EBUSY; diff --git a/drivers/md/raid6main.c b/drivers/md/raid6main.c index 7e30ab29691..8a33f351e09 100644 --- a/drivers/md/raid6main.c +++ b/drivers/md/raid6main.c @@ -2038,7 +2038,7 @@ static int raid6_remove_disk(mddev_t *mddev, int number) goto abort; } p->rdev = NULL; - synchronize_kernel(); + synchronize_rcu(); if (atomic_read(&rdev->nr_pending)) { /* lost the race, try later */ err = -EBUSY; diff --git a/drivers/net/r8169.c b/drivers/net/r8169.c index 07e2df09491..c59507f8a76 100644 --- a/drivers/net/r8169.c +++ b/drivers/net/r8169.c @@ -2385,7 +2385,7 @@ core_down: } /* Give a racing hard_start_xmit a few cycles to complete. */ - synchronize_kernel(); + synchronize_sched(); /* FIXME: should this be synchronize_irq()? */ /* * And now for the 50k$ question: are IRQ disabled or not ? diff --git a/drivers/s390/cio/airq.c b/drivers/s390/cio/airq.c index 3720e77b465..83e6a060668 100644 --- a/drivers/s390/cio/airq.c +++ b/drivers/s390/cio/airq.c @@ -45,7 +45,7 @@ s390_register_adapter_interrupt (adapter_int_handler_t handler) else ret = (cmpxchg(&adapter_handler, NULL, handler) ? -EBUSY : 0); if (!ret) - synchronize_kernel(); + synchronize_sched(); /* Allow interrupts to complete. */ sprintf (dbf_txt, "ret:%d", ret); CIO_TRACE_EVENT (4, dbf_txt); @@ -65,7 +65,7 @@ s390_unregister_adapter_interrupt (adapter_int_handler_t handler) ret = -EINVAL; else { adapter_handler = NULL; - synchronize_kernel(); + synchronize_sched(); /* Allow interrupts to complete. */ ret = 0; } sprintf (dbf_txt, "ret:%d", ret); diff --git a/kernel/module.c b/kernel/module.c index 2dbfa0773fa..5734ab09d3f 100644 --- a/kernel/module.c +++ b/kernel/module.c @@ -1801,7 +1801,7 @@ sys_init_module(void __user *umod, /* Init routine failed: abort. Try to protect us from buggy refcounters. */ mod->state = MODULE_STATE_GOING; - synchronize_kernel(); + synchronize_sched(); if (mod->unsafe) printk(KERN_ERR "%s: module is now stuck!\n", mod->name); diff --git a/kernel/profile.c b/kernel/profile.c index a66be468c42..0221a50ca86 100644 --- a/kernel/profile.c +++ b/kernel/profile.c @@ -184,7 +184,7 @@ void unregister_timer_hook(int (*hook)(struct pt_regs *)) WARN_ON(hook != timer_hook); timer_hook = NULL; /* make sure all CPUs see the NULL hook */ - synchronize_kernel(); + synchronize_sched(); /* Allow ongoing interrupts to complete. */ } EXPORT_SYMBOL_GPL(register_timer_hook); diff --git a/mm/slab.c b/mm/slab.c index 771cc09f9f1..84074264115 100644 --- a/mm/slab.c +++ b/mm/slab.c @@ -1666,7 +1666,7 @@ int kmem_cache_destroy(kmem_cache_t * cachep) } if (unlikely(cachep->flags & SLAB_DESTROY_BY_RCU)) - synchronize_kernel(); + synchronize_rcu(); /* no cpu_online check required here since we clear the percpu * array on cpu offline and set this to NULL. diff --git a/net/core/dev.c b/net/core/dev.c index 7bd4cd4502c..f5f005846fe 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -3091,7 +3091,7 @@ void free_netdev(struct net_device *dev) void synchronize_net(void) { might_sleep(); - synchronize_kernel(); + synchronize_rcu(); } /** -- cgit v1.2.3-70-g09d2 From 7d87e14c236d6c4cab66d87cf0bc1e0f0375d308 Mon Sep 17 00:00:00 2001 From: Stephen Rothwell Date: Sun, 1 May 2005 08:59:12 -0700 Subject: [PATCH] consolidate sys_shmat Signed-off-by: Stephen Rothwell Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/alpha/kernel/osf_sys.c | 16 ---------------- arch/alpha/kernel/systbls.S | 2 +- arch/arm/kernel/sys_arm.c | 12 ------------ arch/ia64/kernel/entry.S | 2 +- arch/ia64/kernel/sys_ia64.c | 14 -------------- arch/mips/kernel/syscall.c | 16 ---------------- arch/parisc/kernel/sys_parisc.c | 11 ----------- arch/parisc/kernel/syscall_table.S | 2 +- arch/sh64/kernel/sys_sh64.c | 15 --------------- arch/sh64/kernel/syscalls.S | 2 +- arch/um/include/sysdep-x86_64/syscalls.h | 1 - arch/um/sys-x86_64/syscalls.c | 8 -------- arch/x86_64/kernel/sys_x86_64.c | 6 ------ include/asm-x86_64/unistd.h | 2 +- include/linux/syscalls.h | 3 +-- ipc/shm.c | 14 ++++++++++++++ kernel/sys_ni.c | 1 + 17 files changed, 21 insertions(+), 106 deletions(-) (limited to 'kernel') diff --git a/arch/alpha/kernel/osf_sys.c b/arch/alpha/kernel/osf_sys.c index b5d0fd2bb10..64e450dddb4 100644 --- a/arch/alpha/kernel/osf_sys.c +++ b/arch/alpha/kernel/osf_sys.c @@ -457,22 +457,6 @@ osf_getdomainname(char __user *name, int namelen) return 0; } -asmlinkage long -osf_shmat(int shmid, void __user *shmaddr, int shmflg) -{ - unsigned long raddr; - long err; - - err = do_shmat(shmid, shmaddr, shmflg, &raddr); - - /* - * This works because all user-level addresses are - * non-negative longs! - */ - return err ? err : (long)raddr; -} - - /* * The following stuff should move into a header file should it ever * be labeled "officially supported." Right now, there is just enough diff --git a/arch/alpha/kernel/systbls.S b/arch/alpha/kernel/systbls.S index 3864b33562e..05212088287 100644 --- a/arch/alpha/kernel/systbls.S +++ b/arch/alpha/kernel/systbls.S @@ -227,7 +227,7 @@ sys_call_table: .quad sys_semop .quad osf_utsname .quad sys_lchown - .quad osf_shmat + .quad sys_shmat .quad sys_shmctl /* 210 */ .quad sys_shmdt .quad sys_shmget diff --git a/arch/arm/kernel/sys_arm.c b/arch/arm/kernel/sys_arm.c index 7ba6342cf93..ef32577da30 100644 --- a/arch/arm/kernel/sys_arm.c +++ b/arch/arm/kernel/sys_arm.c @@ -227,18 +227,6 @@ asmlinkage int sys_ipc(uint call, int first, int second, int third, } } -asmlinkage long sys_shmat(int shmid, char __user *shmaddr, int shmflg, - unsigned long __user *addr) -{ - unsigned long ret; - long err; - - err = do_shmat(shmid, shmaddr, shmflg, &ret); - if (err == 0) - err = put_user(ret, addr); - return err; -} - /* Fork a new task - this creates a new program thread. * This is called indirectly via a small wrapper */ diff --git a/arch/ia64/kernel/entry.S b/arch/ia64/kernel/entry.S index bd86fea49a0..d3f093820bc 100644 --- a/arch/ia64/kernel/entry.S +++ b/arch/ia64/kernel/entry.S @@ -1417,7 +1417,7 @@ sys_call_table: data8 sys_msgrcv data8 sys_msgctl data8 sys_shmget - data8 ia64_shmat + data8 sys_shmat data8 sys_shmdt // 1115 data8 sys_shmctl data8 sys_syslog diff --git a/arch/ia64/kernel/sys_ia64.c b/arch/ia64/kernel/sys_ia64.c index 3ac216e1c8b..a8cf6d8a509 100644 --- a/arch/ia64/kernel/sys_ia64.c +++ b/arch/ia64/kernel/sys_ia64.c @@ -92,20 +92,6 @@ sys_getpagesize (void) return PAGE_SIZE; } -asmlinkage unsigned long -ia64_shmat (int shmid, void __user *shmaddr, int shmflg) -{ - unsigned long raddr; - int retval; - - retval = do_shmat(shmid, shmaddr, shmflg, &raddr); - if (retval < 0) - return retval; - - force_successful_syscall_return(); - return raddr; -} - asmlinkage unsigned long ia64_brk (unsigned long brk) { diff --git a/arch/mips/kernel/syscall.c b/arch/mips/kernel/syscall.c index 598bfe7426a..ae2a1312d4e 100644 --- a/arch/mips/kernel/syscall.c +++ b/arch/mips/kernel/syscall.c @@ -373,22 +373,6 @@ asmlinkage int sys_ipc (uint call, int first, int second, } } -/* - * Native ABI that is O32 or N64 version - */ -asmlinkage long sys_shmat(int shmid, char __user *shmaddr, - int shmflg, unsigned long *addr) -{ - unsigned long raddr; - int err; - - err = do_shmat(shmid, shmaddr, shmflg, &raddr); - if (err) - return err; - - return put_user(raddr, addr); -} - /* * No implemented yet ... */ diff --git a/arch/parisc/kernel/sys_parisc.c b/arch/parisc/kernel/sys_parisc.c index 7958cd8c8bf..d15a1d53e10 100644 --- a/arch/parisc/kernel/sys_parisc.c +++ b/arch/parisc/kernel/sys_parisc.c @@ -161,17 +161,6 @@ asmlinkage unsigned long sys_mmap(unsigned long addr, unsigned long len, } } -long sys_shmat_wrapper(int shmid, char __user *shmaddr, int shmflag) -{ - unsigned long raddr; - int r; - - r = do_shmat(shmid, shmaddr, shmflag, &raddr); - if (r < 0) - return r; - return raddr; -} - /* Fucking broken ABI */ #ifdef CONFIG_64BIT diff --git a/arch/parisc/kernel/syscall_table.S b/arch/parisc/kernel/syscall_table.S index 779b537100e..dcfa4d3d0e7 100644 --- a/arch/parisc/kernel/syscall_table.S +++ b/arch/parisc/kernel/syscall_table.S @@ -297,7 +297,7 @@ ENTRY_DIFF(msgrcv) ENTRY_SAME(msgget) /* 190 */ ENTRY_SAME(msgctl) - ENTRY_SAME(shmat_wrapper) + ENTRY_SAME(shmat) ENTRY_SAME(shmdt) ENTRY_SAME(shmget) ENTRY_SAME(shmctl) /* 195 */ diff --git a/arch/sh64/kernel/sys_sh64.c b/arch/sh64/kernel/sys_sh64.c index 4546845b9ca..58ff7d522d8 100644 --- a/arch/sh64/kernel/sys_sh64.c +++ b/arch/sh64/kernel/sys_sh64.c @@ -283,18 +283,3 @@ asmlinkage int sys_uname(struct old_utsname * name) up_read(&uts_sem); return err?-EFAULT:0; } - -/* Copy from mips version */ -asmlinkage long sys_shmatcall(int shmid, char __user *shmaddr, - int shmflg) -{ - unsigned long raddr; - int err; - - err = do_shmat(shmid, shmaddr, shmflg, &raddr); - if (err) - return err; - - err = raddr; - return err; -} diff --git a/arch/sh64/kernel/syscalls.S b/arch/sh64/kernel/syscalls.S index 8ed417df3dc..6aabc63e451 100644 --- a/arch/sh64/kernel/syscalls.S +++ b/arch/sh64/kernel/syscalls.S @@ -268,7 +268,7 @@ sys_call_table: .long sys_msgrcv .long sys_msgget .long sys_msgctl - .long sys_shmatcall + .long sys_shmat .long sys_shmdt /* 245 */ .long sys_shmget .long sys_shmctl diff --git a/arch/um/include/sysdep-x86_64/syscalls.h b/arch/um/include/sysdep-x86_64/syscalls.h index b56b335c351..67923cca569 100644 --- a/arch/um/include/sysdep-x86_64/syscalls.h +++ b/arch/um/include/sysdep-x86_64/syscalls.h @@ -26,7 +26,6 @@ extern syscall_handler_t *ia32_sys_call_table[]; extern long old_mmap(unsigned long addr, unsigned long len, unsigned long prot, unsigned long flags, unsigned long fd, unsigned long pgoff); -extern syscall_handler_t wrap_sys_shmat; extern syscall_handler_t sys_modify_ldt; extern syscall_handler_t sys_arch_prctl; diff --git a/arch/um/sys-x86_64/syscalls.c b/arch/um/sys-x86_64/syscalls.c index 15768c96ceb..ab4b0abf8af 100644 --- a/arch/um/sys-x86_64/syscalls.c +++ b/arch/um/sys-x86_64/syscalls.c @@ -14,14 +14,6 @@ #include "asm/prctl.h" /* XXX This should get the constants from libc */ #include "choose-mode.h" -/* XXX: copied from x86-64: arch/x86_64/kernel/sys_x86_64.c */ -asmlinkage long wrap_sys_shmat(int shmid, char __user *shmaddr, int shmflg) -{ - unsigned long raddr; - - return do_shmat(shmid, shmaddr, shmflg, &raddr) ?: (long) raddr; -} - asmlinkage long sys_uname64(struct new_utsname __user * name) { int err; diff --git a/arch/x86_64/kernel/sys_x86_64.c b/arch/x86_64/kernel/sys_x86_64.c index 477d8be57d6..dbebd5ccba6 100644 --- a/arch/x86_64/kernel/sys_x86_64.c +++ b/arch/x86_64/kernel/sys_x86_64.c @@ -152,12 +152,6 @@ asmlinkage long sys_uname(struct new_utsname __user * name) return err ? -EFAULT : 0; } -asmlinkage long wrap_sys_shmat(int shmid, char __user *shmaddr, int shmflg) -{ - unsigned long raddr; - return do_shmat(shmid,shmaddr,shmflg,&raddr) ?: (long)raddr; -} - asmlinkage long sys_time64(long __user * tloc) { struct timeval now; diff --git a/include/asm-x86_64/unistd.h b/include/asm-x86_64/unistd.h index 3d65d240dc9..3c9af6fd433 100644 --- a/include/asm-x86_64/unistd.h +++ b/include/asm-x86_64/unistd.h @@ -76,7 +76,7 @@ __SYSCALL(__NR_madvise, sys_madvise) #define __NR_shmget 29 __SYSCALL(__NR_shmget, sys_shmget) #define __NR_shmat 30 -__SYSCALL(__NR_shmat, wrap_sys_shmat) +__SYSCALL(__NR_shmat, sys_shmat) #define __NR_shmctl 31 __SYSCALL(__NR_shmctl, sys_shmctl) diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h index 757cd9be774..c39f6f72cbb 100644 --- a/include/linux/syscalls.h +++ b/include/linux/syscalls.h @@ -456,8 +456,7 @@ asmlinkage long sys_semctl(int semid, int semnum, int cmd, union semun arg); asmlinkage long sys_semtimedop(int semid, struct sembuf __user *sops, unsigned nsops, const struct timespec __user *timeout); -asmlinkage long sys_shmat(int shmid, char __user *shmaddr, - int shmflg, unsigned long __user *addr); +asmlinkage long sys_shmat(int shmid, char __user *shmaddr, int shmflg); asmlinkage long sys_shmget(key_t key, size_t size, int flag); asmlinkage long sys_shmdt(char __user *shmaddr); asmlinkage long sys_shmctl(int shmid, int cmd, struct shmid_ds __user *buf); diff --git a/ipc/shm.c b/ipc/shm.c index 06cd5c91056..cce022435db 100644 --- a/ipc/shm.c +++ b/ipc/shm.c @@ -28,6 +28,8 @@ #include #include #include +#include + #include #include "util.h" @@ -771,6 +773,18 @@ out: return err; } +asmlinkage long sys_shmat(int shmid, char __user *shmaddr, int shmflg) +{ + unsigned long ret; + long err; + + err = do_shmat(shmid, shmaddr, shmflg, &ret); + if (err) + return err; + force_successful_syscall_return(); + return (long)ret; +} + /* * detach and kill segment if marked destroyed. * The work is done in shm_close. diff --git a/kernel/sys_ni.c b/kernel/sys_ni.c index 1802a311dd3..0dda70ed1f9 100644 --- a/kernel/sys_ni.c +++ b/kernel/sys_ni.c @@ -52,6 +52,7 @@ cond_syscall(sys_msgsnd); cond_syscall(sys_msgrcv); cond_syscall(sys_msgctl); cond_syscall(sys_shmget); +cond_syscall(sys_shmat); cond_syscall(sys_shmdt); cond_syscall(sys_shmctl); cond_syscall(sys_mq_open); -- cgit v1.2.3-70-g09d2 From 7ed20e1ad521b5f5df61bf6559ae60738e393741 Mon Sep 17 00:00:00 2001 From: Jesper Juhl Date: Sun, 1 May 2005 08:59:14 -0700 Subject: [PATCH] convert that currently tests _NSIG directly to use valid_signal() Convert most of the current code that uses _NSIG directly to instead use valid_signal(). This avoids gcc -W warnings and off-by-one errors. Signed-off-by: Jesper Juhl Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/alpha/kernel/ptrace.c | 5 +++-- arch/arm/kernel/ptrace.c | 5 +++-- arch/arm26/kernel/ptrace.c | 5 +++-- arch/cris/arch-v10/kernel/ptrace.c | 5 +++-- arch/frv/kernel/ptrace.c | 5 +++-- arch/h8300/kernel/ptrace.c | 5 +++-- arch/i386/kernel/ptrace.c | 5 +++-- arch/ia64/kernel/ptrace.c | 5 +++-- arch/m32r/kernel/ptrace.c | 5 +++-- arch/m68k/kernel/ptrace.c | 5 +++-- arch/m68knommu/kernel/ptrace.c | 5 +++-- arch/mips/kernel/ptrace.c | 3 ++- arch/mips/kernel/ptrace32.c | 3 ++- arch/parisc/kernel/ptrace.c | 7 ++++--- arch/ppc/kernel/ptrace.c | 5 +++-- arch/ppc64/kernel/ptrace.c | 5 +++-- arch/ppc64/kernel/ptrace32.c | 5 +++-- arch/s390/kernel/ptrace.c | 5 +++-- arch/sh/kernel/ptrace.c | 5 +++-- arch/sh64/kernel/ptrace.c | 5 +++-- arch/sparc/kernel/ptrace.c | 3 ++- arch/sparc64/kernel/ptrace.c | 3 ++- arch/um/kernel/ptrace.c | 4 ++-- arch/v850/kernel/ptrace.c | 3 ++- arch/x86_64/kernel/ptrace.c | 5 +++-- drivers/char/vt_ioctl.c | 3 ++- fs/fcntl.c | 3 ++- ipc/mqueue.c | 4 ++-- kernel/exit.c | 5 +++-- kernel/futex.c | 3 ++- kernel/ptrace.c | 3 ++- kernel/signal.c | 9 +++++---- kernel/sys.c | 3 ++- 33 files changed, 90 insertions(+), 59 deletions(-) (limited to 'kernel') diff --git a/arch/alpha/kernel/ptrace.c b/arch/alpha/kernel/ptrace.c index d0058316157..bbd37536d14 100644 --- a/arch/alpha/kernel/ptrace.c +++ b/arch/alpha/kernel/ptrace.c @@ -14,6 +14,7 @@ #include #include #include +#include #include #include @@ -335,7 +336,7 @@ do_sys_ptrace(long request, long pid, long addr, long data, /* continue and stop at next (return from) syscall */ case PTRACE_CONT: /* restart after signal. */ ret = -EIO; - if ((unsigned long) data > _NSIG) + if (!valid_signal(data)) break; if (request == PTRACE_SYSCALL) set_tsk_thread_flag(child, TIF_SYSCALL_TRACE); @@ -365,7 +366,7 @@ do_sys_ptrace(long request, long pid, long addr, long data, case PTRACE_SINGLESTEP: /* execute single instruction. */ ret = -EIO; - if ((unsigned long) data > _NSIG) + if (!valid_signal(data)) break; /* Mark single stepping. */ child->thread_info->bpt_nsaved = -1; diff --git a/arch/arm/kernel/ptrace.c b/arch/arm/kernel/ptrace.c index efd7a341614..cd99b83f14c 100644 --- a/arch/arm/kernel/ptrace.c +++ b/arch/arm/kernel/ptrace.c @@ -19,6 +19,7 @@ #include #include #include +#include #include #include @@ -693,7 +694,7 @@ static int do_ptrace(int request, struct task_struct *child, long addr, long dat case PTRACE_SYSCALL: case PTRACE_CONT: ret = -EIO; - if ((unsigned long) data > _NSIG) + if (!valid_signal(data)) break; if (request == PTRACE_SYSCALL) set_tsk_thread_flag(child, TIF_SYSCALL_TRACE); @@ -728,7 +729,7 @@ static int do_ptrace(int request, struct task_struct *child, long addr, long dat */ case PTRACE_SINGLESTEP: ret = -EIO; - if ((unsigned long) data > _NSIG) + if (!valid_signal(data)) break; child->ptrace |= PT_SINGLESTEP; clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE); diff --git a/arch/arm26/kernel/ptrace.c b/arch/arm26/kernel/ptrace.c index 2a137146a77..8a52124de0e 100644 --- a/arch/arm26/kernel/ptrace.c +++ b/arch/arm26/kernel/ptrace.c @@ -18,6 +18,7 @@ #include #include #include +#include #include #include @@ -591,7 +592,7 @@ static int do_ptrace(int request, struct task_struct *child, long addr, long dat case PTRACE_SYSCALL: case PTRACE_CONT: ret = -EIO; - if ((unsigned long) data > _NSIG) + if (!valid_signal(data)) break; if (request == PTRACE_SYSCALL) set_tsk_thread_flag(child, TIF_SYSCALL_TRACE); @@ -626,7 +627,7 @@ static int do_ptrace(int request, struct task_struct *child, long addr, long dat */ case PTRACE_SINGLESTEP: ret = -EIO; - if ((unsigned long) data > _NSIG) + if (!valid_signal(data)) break; child->ptrace |= PT_SINGLESTEP; clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE); diff --git a/arch/cris/arch-v10/kernel/ptrace.c b/arch/cris/arch-v10/kernel/ptrace.c index da15db8ae48..581ecabaae5 100644 --- a/arch/cris/arch-v10/kernel/ptrace.c +++ b/arch/cris/arch-v10/kernel/ptrace.c @@ -10,6 +10,7 @@ #include #include #include +#include #include #include @@ -184,7 +185,7 @@ sys_ptrace(long request, long pid, long addr, long data) case PTRACE_CONT: ret = -EIO; - if ((unsigned long) data > _NSIG) + if (!valid_signal(data)) break; if (request == PTRACE_SYSCALL) { @@ -219,7 +220,7 @@ sys_ptrace(long request, long pid, long addr, long data) case PTRACE_SINGLESTEP: ret = -EIO; - if ((unsigned long) data > _NSIG) + if (!valid_signal(data)) break; clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE); diff --git a/arch/frv/kernel/ptrace.c b/arch/frv/kernel/ptrace.c index 2a0efb739ad..cbe03cba9f0 100644 --- a/arch/frv/kernel/ptrace.c +++ b/arch/frv/kernel/ptrace.c @@ -20,6 +20,7 @@ #include #include #include +#include #include #include @@ -239,7 +240,7 @@ asmlinkage int sys_ptrace(long request, long pid, long addr, long data) case PTRACE_SYSCALL: /* continue and stop at next (return from) syscall */ case PTRACE_CONT: /* restart after signal. */ ret = -EIO; - if ((unsigned long) data > _NSIG) + if (!valid_signal(data)) break; if (request == PTRACE_SYSCALL) set_tsk_thread_flag(child, TIF_SYSCALL_TRACE); @@ -267,7 +268,7 @@ asmlinkage int sys_ptrace(long request, long pid, long addr, long data) case PTRACE_SINGLESTEP: /* set the trap flag. */ ret = -EIO; - if ((unsigned long) data > _NSIG) + if (!valid_signal(data)) break; clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE); ptrace_enable(child); diff --git a/arch/h8300/kernel/ptrace.c b/arch/h8300/kernel/ptrace.c index 5f19d774a28..05c15e86977 100644 --- a/arch/h8300/kernel/ptrace.c +++ b/arch/h8300/kernel/ptrace.c @@ -24,6 +24,7 @@ #include #include #include +#include #include #include @@ -171,7 +172,7 @@ asmlinkage int sys_ptrace(long request, long pid, long addr, long data) case PTRACE_SYSCALL: /* continue and stop at next (return from) syscall */ case PTRACE_CONT: { /* restart after signal. */ ret = -EIO; - if ((unsigned long) data >= _NSIG) + if (!valid_signal(data)) break ; if (request == PTRACE_SYSCALL) set_tsk_thread_flag(child, TIF_SYSCALL_TRACE); @@ -202,7 +203,7 @@ asmlinkage int sys_ptrace(long request, long pid, long addr, long data) case PTRACE_SINGLESTEP: { /* set the trap flag. */ ret = -EIO; - if ((unsigned long) data > _NSIG) + if (!valid_signal(data)) break; clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE); child->exit_code = data; diff --git a/arch/i386/kernel/ptrace.c b/arch/i386/kernel/ptrace.c index b2f17640cef..e8c965ce86e 100644 --- a/arch/i386/kernel/ptrace.c +++ b/arch/i386/kernel/ptrace.c @@ -16,6 +16,7 @@ #include #include #include +#include #include #include @@ -511,7 +512,7 @@ asmlinkage int sys_ptrace(long request, long pid, long addr, long data) case PTRACE_SYSCALL: /* continue and stop at next (return from) syscall */ case PTRACE_CONT: /* restart after signal. */ ret = -EIO; - if ((unsigned long) data > _NSIG) + if (!valid_signal(data)) break; if (request == PTRACE_SYSCALL) { set_tsk_thread_flag(child, TIF_SYSCALL_TRACE); @@ -543,7 +544,7 @@ asmlinkage int sys_ptrace(long request, long pid, long addr, long data) case PTRACE_SINGLESTEP: /* set the trap flag. */ ret = -EIO; - if ((unsigned long) data > _NSIG) + if (!valid_signal(data)) break; clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE); set_singlestep(child); diff --git a/arch/ia64/kernel/ptrace.c b/arch/ia64/kernel/ptrace.c index 55789fcd721..c253fd5914f 100644 --- a/arch/ia64/kernel/ptrace.c +++ b/arch/ia64/kernel/ptrace.c @@ -17,6 +17,7 @@ #include #include #include +#include #include #include @@ -1481,7 +1482,7 @@ sys_ptrace (long request, pid_t pid, unsigned long addr, unsigned long data) case PTRACE_CONT: /* restart after signal. */ ret = -EIO; - if (data > _NSIG) + if (!valid_signal(data)) goto out_tsk; if (request == PTRACE_SYSCALL) set_tsk_thread_flag(child, TIF_SYSCALL_TRACE); @@ -1520,7 +1521,7 @@ sys_ptrace (long request, pid_t pid, unsigned long addr, unsigned long data) /* let child execute for one instruction */ case PTRACE_SINGLEBLOCK: ret = -EIO; - if (data > _NSIG) + if (!valid_signal(data)) goto out_tsk; clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE); diff --git a/arch/m32r/kernel/ptrace.c b/arch/m32r/kernel/ptrace.c index 8b40f362dd6..124f7c1b775 100644 --- a/arch/m32r/kernel/ptrace.c +++ b/arch/m32r/kernel/ptrace.c @@ -24,6 +24,7 @@ #include #include #include +#include #include #include @@ -665,7 +666,7 @@ do_ptrace(long request, struct task_struct *child, long addr, long data) case PTRACE_SYSCALL: case PTRACE_CONT: ret = -EIO; - if ((unsigned long) data > _NSIG) + if (!valid_signal(data)) break; if (request == PTRACE_SYSCALL) set_tsk_thread_flag(child, TIF_SYSCALL_TRACE); @@ -700,7 +701,7 @@ do_ptrace(long request, struct task_struct *child, long addr, long data) unsigned long pc, insn; ret = -EIO; - if ((unsigned long) data > _NSIG) + if (!valid_signal(data)) break; clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE); if ((child->ptrace & PT_DTRACE) == 0) { diff --git a/arch/m68k/kernel/ptrace.c b/arch/m68k/kernel/ptrace.c index 0beb53333ba..f4e1e5eb8e1 100644 --- a/arch/m68k/kernel/ptrace.c +++ b/arch/m68k/kernel/ptrace.c @@ -19,6 +19,7 @@ #include #include #include +#include #include #include @@ -251,7 +252,7 @@ asmlinkage int sys_ptrace(long request, long pid, long addr, long data) long tmp; ret = -EIO; - if ((unsigned long) data > _NSIG) + if (!valid_signal(data)) break; if (request == PTRACE_SYSCALL) { child->thread.work.syscall_trace = ~0; @@ -292,7 +293,7 @@ asmlinkage int sys_ptrace(long request, long pid, long addr, long data) long tmp; ret = -EIO; - if ((unsigned long) data > _NSIG) + if (!valid_signal(data)) break; child->thread.work.syscall_trace = 0; tmp = get_reg(child, PT_SR) | (TRACE_BITS << 16); diff --git a/arch/m68knommu/kernel/ptrace.c b/arch/m68knommu/kernel/ptrace.c index 15cf79080b1..9724e1cd82e 100644 --- a/arch/m68knommu/kernel/ptrace.c +++ b/arch/m68knommu/kernel/ptrace.c @@ -19,6 +19,7 @@ #include #include #include +#include #include #include @@ -240,7 +241,7 @@ asmlinkage int sys_ptrace(long request, long pid, long addr, long data) long tmp; ret = -EIO; - if ((unsigned long) data > _NSIG) + if (!valid_signal(data)) break; if (request == PTRACE_SYSCALL) set_tsk_thread_flag(child, TIF_SYSCALL_TRACE); @@ -278,7 +279,7 @@ asmlinkage int sys_ptrace(long request, long pid, long addr, long data) long tmp; ret = -EIO; - if ((unsigned long) data > _NSIG) + if (!valid_signal(data)) break; clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE); tmp = get_reg(child, PT_SR) | (TRACE_BITS << 16); diff --git a/arch/mips/kernel/ptrace.c b/arch/mips/kernel/ptrace.c index 92f2c39afe2..a2f899c2f4d 100644 --- a/arch/mips/kernel/ptrace.c +++ b/arch/mips/kernel/ptrace.c @@ -26,6 +26,7 @@ #include #include #include +#include #include #include @@ -257,7 +258,7 @@ asmlinkage int sys_ptrace(long request, long pid, long addr, long data) case PTRACE_SYSCALL: /* continue and stop at next (return from) syscall */ case PTRACE_CONT: { /* restart after signal. */ ret = -EIO; - if ((unsigned long) data > _NSIG) + if (!valid_signal(data)) break; if (request == PTRACE_SYSCALL) { set_tsk_thread_flag(child, TIF_SYSCALL_TRACE); diff --git a/arch/mips/kernel/ptrace32.c b/arch/mips/kernel/ptrace32.c index 611dee919d5..eee207969c2 100644 --- a/arch/mips/kernel/ptrace32.c +++ b/arch/mips/kernel/ptrace32.c @@ -24,6 +24,7 @@ #include #include #include +#include #include #include @@ -241,7 +242,7 @@ asmlinkage int sys32_ptrace(int request, int pid, int addr, int data) case PTRACE_SYSCALL: /* continue and stop at next (return from) syscall */ case PTRACE_CONT: { /* restart after signal. */ ret = -EIO; - if ((unsigned int) data > _NSIG) + if (!valid_signal(data)) break; if (request == PTRACE_SYSCALL) { set_tsk_thread_flag(child, TIF_SYSCALL_TRACE); diff --git a/arch/parisc/kernel/ptrace.c b/arch/parisc/kernel/ptrace.c index 2937a923638..c07db9dff7c 100644 --- a/arch/parisc/kernel/ptrace.c +++ b/arch/parisc/kernel/ptrace.c @@ -17,6 +17,7 @@ #include #include #include +#include #include #include @@ -285,7 +286,7 @@ long sys_ptrace(long request, pid_t pid, long addr, long data) ret = -EIO; DBG("sys_ptrace(%s)\n", request == PTRACE_SYSCALL ? "SYSCALL" : "CONT"); - if ((unsigned long) data > _NSIG) + if (!valid_signal(data)) goto out_tsk; child->ptrace &= ~(PT_SINGLESTEP|PT_BLOCKSTEP); if (request == PTRACE_SYSCALL) { @@ -311,7 +312,7 @@ long sys_ptrace(long request, pid_t pid, long addr, long data) case PTRACE_SINGLEBLOCK: DBG("sys_ptrace(SINGLEBLOCK)\n"); ret = -EIO; - if ((unsigned long) data > _NSIG) + if (!valid_signal(data)) goto out_tsk; clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE); child->ptrace &= ~PT_SINGLESTEP; @@ -328,7 +329,7 @@ long sys_ptrace(long request, pid_t pid, long addr, long data) case PTRACE_SINGLESTEP: DBG("sys_ptrace(SINGLESTEP)\n"); ret = -EIO; - if ((unsigned long) data > _NSIG) + if (!valid_signal(data)) goto out_tsk; clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE); diff --git a/arch/ppc/kernel/ptrace.c b/arch/ppc/kernel/ptrace.c index 426b6f7d9de..59d59a8dc24 100644 --- a/arch/ppc/kernel/ptrace.c +++ b/arch/ppc/kernel/ptrace.c @@ -26,6 +26,7 @@ #include #include #include +#include #include #include @@ -356,7 +357,7 @@ int sys_ptrace(long request, long pid, long addr, long data) case PTRACE_SYSCALL: /* continue and stop at next (return from) syscall */ case PTRACE_CONT: { /* restart after signal. */ ret = -EIO; - if ((unsigned long) data > _NSIG) + if (!valid_signal(data)) break; if (request == PTRACE_SYSCALL) { set_tsk_thread_flag(child, TIF_SYSCALL_TRACE); @@ -389,7 +390,7 @@ int sys_ptrace(long request, long pid, long addr, long data) case PTRACE_SINGLESTEP: { /* set the trap flag. */ ret = -EIO; - if ((unsigned long) data > _NSIG) + if (!valid_signal(data)) break; clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE); set_single_step(child); diff --git a/arch/ppc64/kernel/ptrace.c b/arch/ppc64/kernel/ptrace.c index 354a287c67e..5a846324ca8 100644 --- a/arch/ppc64/kernel/ptrace.c +++ b/arch/ppc64/kernel/ptrace.c @@ -28,6 +28,7 @@ #include #include #include +#include #include #include @@ -162,7 +163,7 @@ int sys_ptrace(long request, long pid, long addr, long data) case PTRACE_SYSCALL: /* continue and stop at next (return from) syscall */ case PTRACE_CONT: { /* restart after signal. */ ret = -EIO; - if ((unsigned long) data > _NSIG) + if (!valid_signal(data)) break; if (request == PTRACE_SYSCALL) set_tsk_thread_flag(child, TIF_SYSCALL_TRACE); @@ -194,7 +195,7 @@ int sys_ptrace(long request, long pid, long addr, long data) case PTRACE_SINGLESTEP: { /* set the trap flag. */ ret = -EIO; - if ((unsigned long) data > _NSIG) + if (!valid_signal(data)) break; clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE); set_single_step(child); diff --git a/arch/ppc64/kernel/ptrace32.c b/arch/ppc64/kernel/ptrace32.c index ee81b1b776c..16436426c7e 100644 --- a/arch/ppc64/kernel/ptrace32.c +++ b/arch/ppc64/kernel/ptrace32.c @@ -26,6 +26,7 @@ #include #include #include +#include #include #include @@ -293,7 +294,7 @@ int sys32_ptrace(long request, long pid, unsigned long addr, unsigned long data) case PTRACE_SYSCALL: /* continue and stop at next (return from) syscall */ case PTRACE_CONT: { /* restart after signal. */ ret = -EIO; - if ((unsigned long) data > _NSIG) + if (!valid_signal(data)) break; if (request == PTRACE_SYSCALL) set_tsk_thread_flag(child, TIF_SYSCALL_TRACE); @@ -325,7 +326,7 @@ int sys32_ptrace(long request, long pid, unsigned long addr, unsigned long data) case PTRACE_SINGLESTEP: { /* set the trap flag. */ ret = -EIO; - if ((unsigned long) data > _NSIG) + if (!valid_signal(data)) break; clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE); set_single_step(child); diff --git a/arch/s390/kernel/ptrace.c b/arch/s390/kernel/ptrace.c index 647233c02fc..9f0d73e3f5f 100644 --- a/arch/s390/kernel/ptrace.c +++ b/arch/s390/kernel/ptrace.c @@ -32,6 +32,7 @@ #include #include #include +#include #include #include @@ -609,7 +610,7 @@ do_ptrace(struct task_struct *child, long request, long addr, long data) /* continue and stop at next (return from) syscall */ case PTRACE_CONT: /* restart after signal. */ - if ((unsigned long) data >= _NSIG) + if (!valid_signal(data)) return -EIO; if (request == PTRACE_SYSCALL) set_tsk_thread_flag(child, TIF_SYSCALL_TRACE); @@ -637,7 +638,7 @@ do_ptrace(struct task_struct *child, long request, long addr, long data) case PTRACE_SINGLESTEP: /* set the trap flag. */ - if ((unsigned long) data >= _NSIG) + if (!valid_signal(data)) return -EIO; clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE); child->exit_code = data; diff --git a/arch/sh/kernel/ptrace.c b/arch/sh/kernel/ptrace.c index 1b0dfb4d8ea..b28919b6568 100644 --- a/arch/sh/kernel/ptrace.c +++ b/arch/sh/kernel/ptrace.c @@ -20,6 +20,7 @@ #include #include #include +#include #include #include @@ -197,7 +198,7 @@ asmlinkage int sys_ptrace(long request, long pid, long addr, long data) case PTRACE_SYSCALL: /* continue and stop at next (return from) syscall */ case PTRACE_CONT: { /* restart after signal. */ ret = -EIO; - if ((unsigned long) data > _NSIG) + if (!valid_signal(data)) break; if (request == PTRACE_SYSCALL) set_tsk_thread_flag(child, TIF_SYSCALL_TRACE); @@ -228,7 +229,7 @@ asmlinkage int sys_ptrace(long request, long pid, long addr, long data) struct pt_regs *dummy = NULL; ret = -EIO; - if ((unsigned long) data > _NSIG) + if (!valid_signal(data)) break; clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE); if ((child->ptrace & PT_DTRACE) == 0) { diff --git a/arch/sh64/kernel/ptrace.c b/arch/sh64/kernel/ptrace.c index 800288c1562..fd2000956da 100644 --- a/arch/sh64/kernel/ptrace.c +++ b/arch/sh64/kernel/ptrace.c @@ -27,6 +27,7 @@ #include #include #include +#include #include #include @@ -255,7 +256,7 @@ asmlinkage int sys_ptrace(long request, long pid, long addr, long data) case PTRACE_SYSCALL: /* continue and stop at next (return from) syscall */ case PTRACE_CONT: { /* restart after signal. */ ret = -EIO; - if ((unsigned long) data > _NSIG) + if (!valid_signal(data)) break; if (request == PTRACE_SYSCALL) set_tsk_thread_flag(child, TIF_SYSCALL_TRACE); @@ -285,7 +286,7 @@ asmlinkage int sys_ptrace(long request, long pid, long addr, long data) struct pt_regs *regs; ret = -EIO; - if ((unsigned long) data > _NSIG) + if (!valid_signal(data)) break; clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE); if ((child->ptrace & PT_DTRACE) == 0) { diff --git a/arch/sparc/kernel/ptrace.c b/arch/sparc/kernel/ptrace.c index c4f93bd2daf..475c4c13462 100644 --- a/arch/sparc/kernel/ptrace.c +++ b/arch/sparc/kernel/ptrace.c @@ -18,6 +18,7 @@ #include #include #include +#include #include #include @@ -526,7 +527,7 @@ asmlinkage void do_ptrace(struct pt_regs *regs) addr = 1; case PTRACE_CONT: { /* restart after signal. */ - if (data > _NSIG) { + if (!valid_signal(data)) { pt_error_return(regs, EIO); goto out_tsk; } diff --git a/arch/sparc64/kernel/ptrace.c b/arch/sparc64/kernel/ptrace.c index 5f080cf04b3..80a76e2ad73 100644 --- a/arch/sparc64/kernel/ptrace.c +++ b/arch/sparc64/kernel/ptrace.c @@ -19,6 +19,7 @@ #include #include #include +#include #include #include @@ -559,7 +560,7 @@ asmlinkage void do_ptrace(struct pt_regs *regs) addr = 1; case PTRACE_CONT: { /* restart after signal. */ - if (data > _NSIG) { + if (!valid_signal(data)) { pt_error_return(regs, EIO); goto out_tsk; } diff --git a/arch/um/kernel/ptrace.c b/arch/um/kernel/ptrace.c index 3a99ee6d94e..e50e60ff5d2 100644 --- a/arch/um/kernel/ptrace.c +++ b/arch/um/kernel/ptrace.c @@ -143,7 +143,7 @@ long sys_ptrace(long request, long pid, long addr, long data) case PTRACE_SYSCALL: /* continue and stop at next (return from) syscall */ case PTRACE_CONT: { /* restart after signal. */ ret = -EIO; - if ((unsigned long) data > _NSIG) + if (!valid_signal(data)) break; child->ptrace &= ~PT_DTRACE; @@ -179,7 +179,7 @@ long sys_ptrace(long request, long pid, long addr, long data) case PTRACE_SINGLESTEP: { /* set the trap flag. */ ret = -EIO; - if ((unsigned long) data > _NSIG) + if (!valid_signal(data)) break; clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE); child->ptrace |= PT_DTRACE; diff --git a/arch/v850/kernel/ptrace.c b/arch/v850/kernel/ptrace.c index 8fa780757dc..4726b87f5e5 100644 --- a/arch/v850/kernel/ptrace.c +++ b/arch/v850/kernel/ptrace.c @@ -23,6 +23,7 @@ #include #include #include +#include #include #include @@ -208,7 +209,7 @@ int sys_ptrace(long request, long pid, long addr, long data) /* Execute a single instruction. */ case PTRACE_SINGLESTEP: rval = -EIO; - if ((unsigned long) data > _NSIG) + if (!valid_signal(data)) break; /* Turn CHILD's single-step flag on or off. */ diff --git a/arch/x86_64/kernel/ptrace.c b/arch/x86_64/kernel/ptrace.c index c7011675007..c64b9c97c74 100644 --- a/arch/x86_64/kernel/ptrace.c +++ b/arch/x86_64/kernel/ptrace.c @@ -18,6 +18,7 @@ #include #include #include +#include #include #include @@ -467,7 +468,7 @@ asmlinkage long sys_ptrace(long request, long pid, unsigned long addr, long data case PTRACE_CONT: /* restart after signal. */ ret = -EIO; - if ((unsigned long) data > _NSIG) + if (!valid_signal(data)) break; if (request == PTRACE_SYSCALL) set_tsk_thread_flag(child,TIF_SYSCALL_TRACE); @@ -529,7 +530,7 @@ asmlinkage long sys_ptrace(long request, long pid, unsigned long addr, long data case PTRACE_SINGLESTEP: /* set the trap flag. */ ret = -EIO; - if ((unsigned long) data > _NSIG) + if (!valid_signal(data)) break; clear_tsk_thread_flag(child,TIF_SYSCALL_TRACE); set_singlestep(child); diff --git a/drivers/char/vt_ioctl.c b/drivers/char/vt_ioctl.c index 5d386f4bea4..8971484b956 100644 --- a/drivers/char/vt_ioctl.c +++ b/drivers/char/vt_ioctl.c @@ -24,6 +24,7 @@ #include #include #include +#include #include #include @@ -641,7 +642,7 @@ int vt_ioctl(struct tty_struct *tty, struct file * file, extern int spawnpid, spawnsig; if (!perm || !capable(CAP_KILL)) return -EPERM; - if (arg < 1 || arg > _NSIG || arg == SIGKILL) + if (!valid_signal(arg) || arg < 1 || arg == SIGKILL) return -EINVAL; spawnpid = current->pid; spawnsig = arg; diff --git a/fs/fcntl.c b/fs/fcntl.c index 3e7ab16ed15..286a9f8f3d4 100644 --- a/fs/fcntl.c +++ b/fs/fcntl.c @@ -15,6 +15,7 @@ #include #include #include +#include #include #include @@ -308,7 +309,7 @@ static long do_fcntl(int fd, unsigned int cmd, unsigned long arg, break; case F_SETSIG: /* arg == 0 restores default behaviour. */ - if (arg < 0 || arg > _NSIG) { + if (!valid_signal(arg)) { break; } err = 0; diff --git a/ipc/mqueue.c b/ipc/mqueue.c index 33f71520b89..0acf245f441 100644 --- a/ipc/mqueue.c +++ b/ipc/mqueue.c @@ -23,6 +23,7 @@ #include #include #include +#include #include #include "util.h" @@ -976,8 +977,7 @@ asmlinkage long sys_mq_notify(mqd_t mqdes, notification.sigev_notify != SIGEV_THREAD)) return -EINVAL; if (notification.sigev_notify == SIGEV_SIGNAL && - (notification.sigev_signo < 0 || - notification.sigev_signo > _NSIG)) { + !valid_signal(notification.sigev_signo)) { return -EINVAL; } if (notification.sigev_notify == SIGEV_THREAD) { diff --git a/kernel/exit.c b/kernel/exit.c index 93851bcd958..eb8da36e13d 100644 --- a/kernel/exit.c +++ b/kernel/exit.c @@ -27,6 +27,7 @@ #include #include #include +#include #include #include @@ -277,7 +278,7 @@ void set_special_pids(pid_t session, pid_t pgrp) */ int allow_signal(int sig) { - if (sig < 1 || sig > _NSIG) + if (!valid_signal(sig) || sig < 1) return -EINVAL; spin_lock_irq(¤t->sighand->siglock); @@ -298,7 +299,7 @@ EXPORT_SYMBOL(allow_signal); int disallow_signal(int sig) { - if (sig < 1 || sig > _NSIG) + if (!valid_signal(sig) || sig < 1) return -EINVAL; spin_lock_irq(¤t->sighand->siglock); diff --git a/kernel/futex.c b/kernel/futex.c index 7b54a672d0a..c7130f86106 100644 --- a/kernel/futex.c +++ b/kernel/futex.c @@ -39,6 +39,7 @@ #include #include #include +#include #define FUTEX_HASHBITS (CONFIG_BASE_SMALL ? 4 : 8) @@ -654,7 +655,7 @@ static int futex_fd(unsigned long uaddr, int signal) int ret, err; ret = -EINVAL; - if (signal < 0 || signal > _NSIG) + if (!valid_signal(signal)) goto out; ret = get_unused_fd(); diff --git a/kernel/ptrace.c b/kernel/ptrace.c index f5cc1cec0fb..8dcb8f6288b 100644 --- a/kernel/ptrace.c +++ b/kernel/ptrace.c @@ -16,6 +16,7 @@ #include #include #include +#include #include #include @@ -166,7 +167,7 @@ bad: int ptrace_detach(struct task_struct *child, unsigned int data) { - if ((unsigned long) data > _NSIG) + if (!valid_signal(data)) return -EIO; /* Architecture-specific hardware disable .. */ diff --git a/kernel/signal.c b/kernel/signal.c index e6567d7f2b6..8f3debc77c5 100644 --- a/kernel/signal.c +++ b/kernel/signal.c @@ -23,6 +23,7 @@ #include #include #include +#include #include #include #include @@ -646,7 +647,7 @@ static int check_kill_permission(int sig, struct siginfo *info, struct task_struct *t) { int error = -EINVAL; - if (sig < 0 || sig > _NSIG) + if (!valid_signal(sig)) return error; error = -EPERM; if ((!info || ((unsigned long)info != 1 && @@ -1245,7 +1246,7 @@ send_sig_info(int sig, struct siginfo *info, struct task_struct *p) * Make sure legacy kernel users don't send in bad values * (normal paths check this in check_kill_permission). */ - if (sig < 0 || sig > _NSIG) + if (!valid_signal(sig)) return -EINVAL; /* @@ -1520,7 +1521,7 @@ void do_notify_parent(struct task_struct *tsk, int sig) if (psig->action[SIGCHLD-1].sa.sa_handler == SIG_IGN) sig = 0; } - if (sig > 0 && sig <= _NSIG) + if (valid_signal(sig) && sig > 0) __group_send_sig_info(sig, &info, tsk->parent); __wake_up_parent(tsk, tsk->parent); spin_unlock_irqrestore(&psig->siglock, flags); @@ -2364,7 +2365,7 @@ do_sigaction(int sig, const struct k_sigaction *act, struct k_sigaction *oact) { struct k_sigaction *k; - if (sig < 1 || sig > _NSIG || (act && sig_kernel_only(sig))) + if (!valid_signal(sig) || sig < 1 || (act && sig_kernel_only(sig))) return -EINVAL; k = ¤t->sighand->action[sig-1]; diff --git a/kernel/sys.c b/kernel/sys.c index 7f43d6e62c7..f64e97cabe2 100644 --- a/kernel/sys.c +++ b/kernel/sys.c @@ -25,6 +25,7 @@ #include #include #include +#include #include #include @@ -1637,7 +1638,7 @@ asmlinkage long sys_prctl(int option, unsigned long arg2, unsigned long arg3, switch (option) { case PR_SET_PDEATHSIG: sig = arg2; - if (sig < 0 || sig > _NSIG) { + if (!valid_signal(sig)) { error = -EINVAL; break; } -- cgit v1.2.3-70-g09d2 From 4dc3b16ba18c0f967ad100c52fa65b01a4f76ff0 Mon Sep 17 00:00:00 2001 From: Pavel Pisa Date: Sun, 1 May 2005 08:59:25 -0700 Subject: [PATCH] DocBook: changes and extensions to the kernel documentation I have recompiled Linux kernel 2.6.11.5 documentation for me and our university students again. The documentation could be extended for more sources which are equipped by structured comments for recent 2.6 kernels. I have tried to proceed with that task. I have done that more times from 2.6.0 time and it gets boring to do same changes again and again. Linux kernel compiles after changes for i386 and ARM targets. I have added references to some more files into kernel-api book, I have added some section names as well. So please, check that changes do not break something and that categories are not too much skewed. I have changed kernel-doc to accept "fastcall" and "asmlinkage" words reserved by kernel convention. Most of the other changes are modifications in the comments to make kernel-doc happy, accept some parameters description and do not bail out on errors. Changed to @pid in the description, moved some #ifdef before comments to correct function to comments bindings, etc. You can see result of the modified documentation build at http://cmp.felk.cvut.cz/~pisa/linux/lkdb-2.6.11.tar.gz Some more sources are ready to be included into kernel-doc generated documentation. Sources has been added into kernel-api for now. Some more section names added and probably some more chaos introduced as result of quick cleanup work. Signed-off-by: Pavel Pisa Signed-off-by: Martin Waitz Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- Documentation/DocBook/kernel-api.tmpl | 186 ++++++++++++++++++++++++++++++++-- drivers/video/fbmem.c | 5 +- fs/proc/base.c | 10 +- include/linux/fs.h | 12 +-- include/linux/net.h | 38 +++---- include/linux/skbuff.h | 2 +- include/net/sock.h | 134 ++++++++++++------------ kernel/exit.c | 2 +- kernel/power/swsusp.c | 2 +- mm/page_alloc.c | 3 +- mm/vmalloc.c | 8 +- net/core/datagram.c | 28 ++--- net/core/sock.c | 12 +-- net/core/stream.c | 12 +-- net/sunrpc/xdr.c | 12 +-- scripts/kernel-doc | 2 + 16 files changed, 320 insertions(+), 148 deletions(-) (limited to 'kernel') diff --git a/Documentation/DocBook/kernel-api.tmpl b/Documentation/DocBook/kernel-api.tmpl index 1bd20c86028..757cef8f849 100644 --- a/Documentation/DocBook/kernel-api.tmpl +++ b/Documentation/DocBook/kernel-api.tmpl @@ -49,13 +49,33 @@ !Iinclude/asm-i386/unaligned.h - + Internal Functions +!Ikernel/exit.c +!Ikernel/signal.c + + + Kernel objects manipulation + +!Elib/kobject.c + + + Kernel utility functions +!Iinclude/linux/kernel.h + +!Ekernel/panic.c +!Ekernel/sys.c +!Ekernel/rcupdate.c + + @@ -81,7 +101,9 @@ KAO --> !Elib/vsprintf.c String Manipulation -!Ilib/string.c + !Elib/string.c Bit Operations @@ -98,6 +120,25 @@ KAO --> !Iinclude/asm-i386/uaccess.h !Iarch/i386/lib/usercopy.c + More Memory Management Functions +!Iinclude/linux/rmap.h +!Emm/readahead.c +!Emm/filemap.c +!Emm/memory.c +!Emm/vmalloc.c +!Emm/mempool.c +!Emm/page-writeback.c +!Emm/truncate.c + + + + + + Kernel IPC facilities + + IPC utilities +!Iipc/util.c + @@ -114,6 +155,10 @@ KAO --> sysctl interface !Ekernel/sysctl.c + + proc filesystem interface +!Ifs/proc/base.c + @@ -127,6 +172,10 @@ KAO --> The Linux VFS + The Filesystem types +!Iinclude/linux/fs.h +!Einclude/linux/fs.h + The Directory Cache !Efs/dcache.c !Iinclude/linux/dcache.h @@ -142,13 +191,31 @@ KAO --> !Efs/locks.c !Ifs/locks.c + Other Functions +!Efs/mpage.c +!Efs/namei.c +!Efs/buffer.c +!Efs/bio.c +!Efs/seq_file.c +!Efs/filesystems.c +!Efs/fs-writeback.c +!Efs/block_dev.c + Linux Networking + Networking Base Types +!Iinclude/linux/net.h + Socket Buffer Functions !Iinclude/linux/skbuff.h +!Iinclude/net/sock.h +!Enet/socket.c !Enet/core/skbuff.c +!Enet/core/sock.c +!Enet/core/datagram.c +!Enet/core/stream.c Socket Filter !Enet/core/filter.c @@ -158,6 +225,14 @@ KAO --> !Enet/core/gen_stats.c !Enet/core/gen_estimator.c + SUN RPC subsystem + +!Enet/sunrpc/xdr.c +!Enet/sunrpc/svcsock.c +!Enet/sunrpc/sched.c + @@ -194,11 +269,26 @@ X!Ekernel/module.c !Iarch/i386/kernel/irq.c + Resources Management +!Ekernel/resource.c + + MTRR Handling !Earch/i386/kernel/cpu/mtrr/main.c PCI Support Library !Edrivers/pci/pci.c +!Edrivers/pci/pci-driver.c +!Edrivers/pci/remove.c +!Edrivers/pci/pci-acpi.c + +!Edrivers/pci/msi.c +!Edrivers/pci/bus.c +!Edrivers/pci/hotplug.c +!Edrivers/pci/probe.c +!Edrivers/pci/rom.c PCI Hotplug Support Library !Edrivers/pci/hotplug/pci_hotplug_core.c @@ -223,6 +313,14 @@ X!Earch/i386/kernel/mca.c !Efs/devfs/base.c + + The Filesystem for Exporting Kernel Objects +!Efs/sysfs/file.c +!Efs/sysfs/dir.c +!Efs/sysfs/symlink.c +!Efs/sysfs/bin.c + + Security Framework !Esecurity/security.c @@ -233,6 +331,61 @@ X!Earch/i386/kernel/mca.c !Ekernel/power/pm.c + + Device drivers infrastructure + Device Drivers Base + +!Edrivers/base/driver.c +!Edrivers/base/class_simple.c +!Edrivers/base/core.c +!Edrivers/base/firmware_class.c +!Edrivers/base/transport_class.c +!Edrivers/base/dmapool.c + +!Edrivers/base/sys.c + +!Edrivers/base/platform.c +!Edrivers/base/bus.c + + Device Drivers Power Management +!Edrivers/base/power/main.c +!Edrivers/base/power/resume.c +!Edrivers/base/power/suspend.c + + Device Drivers ACPI Support + +!Edrivers/acpi/scan.c + + + Device drivers PnP support +!Edrivers/pnp/core.c + +!Edrivers/pnp/card.c +!Edrivers/pnp/driver.c +!Edrivers/pnp/manager.c +!Edrivers/pnp/support.c + + + + Block Devices !Edrivers/block/ll_rw_blk.c @@ -250,7 +403,23 @@ X!Earch/i386/kernel/mca.c Sound Devices +!Iinclude/sound/core.h !Esound/sound_core.c +!Iinclude/sound/pcm.h +!Esound/core/pcm.c +!Esound/core/device.c +!Esound/core/info.c +!Esound/core/rawmidi.c +!Esound/core/sound.c +!Esound/core/memory.c +!Esound/core/pcm_memory.c +!Esound/core/init.c +!Esound/core/isadma.c +!Esound/core/control.c +!Esound/core/pcm_lib.c +!Esound/core/hwdep.c +!Esound/core/pcm_native.c +!Esound/core/memalloc.c @@ -258,6 +427,7 @@ X!Isound/sound_firmware.c 16x50 UART Driver +!Iinclude/linux/serial_core.h !Edrivers/serial/serial_core.c !Edrivers/serial/8250.c @@ -310,9 +480,11 @@ X!Isound/sound_firmware.c Frame Buffer Memory !Edrivers/video/fbmem.c + Frame Buffer Colormap !Edrivers/video/fbcmap.c diff --git a/drivers/video/fbmem.c b/drivers/video/fbmem.c index 25f460ca0da..208a68ceb63 100644 --- a/drivers/video/fbmem.c +++ b/drivers/video/fbmem.c @@ -1257,6 +1257,8 @@ int fb_new_modelist(struct fb_info *info) static char *video_options[FB_MAX]; static int ofonly; +extern const char *global_mode_option; + /** * fb_get_options - get kernel boot parameters * @name: framebuffer name as it would appear in @@ -1297,9 +1299,6 @@ int fb_get_options(char *name, char **option) return retval; } - -extern const char *global_mode_option; - /** * video_setup - process command line options * @options: string of options diff --git a/fs/proc/base.c b/fs/proc/base.c index 2eac86d46c5..2b8cd045111 100644 --- a/fs/proc/base.c +++ b/fs/proc/base.c @@ -1703,13 +1703,13 @@ static struct inode_operations proc_self_inode_operations = { }; /** - * proc_pid_unhash - Unhash /proc/ entry from the dcache. + * proc_pid_unhash - Unhash /proc/@pid entry from the dcache. * @p: task that should be flushed. * - * Drops the /proc/ dcache entry from the hash chains. + * Drops the /proc/@pid dcache entry from the hash chains. * - * Dropping /proc/ entries and detach_pid must be synchroneous, - * otherwise e.g. /proc//exe might point to the wrong executable, + * Dropping /proc/@pid entries and detach_pid must be synchroneous, + * otherwise e.g. /proc/@pid/exe might point to the wrong executable, * if the pid value is immediately reused. This is enforced by * - caller must acquire spin_lock(p->proc_lock) * - must be called before detach_pid() @@ -1741,7 +1741,7 @@ struct dentry *proc_pid_unhash(struct task_struct *p) } /** - * proc_pid_flush - recover memory used by stale /proc//x entries + * proc_pid_flush - recover memory used by stale /proc/@pid/x entries * @proc_entry: directoy to prune. * * Shrink the /proc directory that was used by the just killed thread. diff --git a/include/linux/fs.h b/include/linux/fs.h index 5df687d940f..3f825b085c8 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -1053,12 +1053,12 @@ static inline void file_accessed(struct file *file) int sync_inode(struct inode *inode, struct writeback_control *wbc); /** - * &export_operations - for nfsd to communicate with file systems - * decode_fh: decode a file handle fragment and return a &struct dentry - * encode_fh: encode a file handle fragment from a dentry - * get_name: find the name for a given inode in a given directory - * get_parent: find the parent of a given directory - * get_dentry: find a dentry for the inode given a file handle sub-fragment + * struct export_operations - for nfsd to communicate with file systems + * @decode_fh: decode a file handle fragment and return a &struct dentry + * @encode_fh: encode a file handle fragment from a dentry + * @get_name: find the name for a given inode in a given directory + * @get_parent: find the parent of a given directory + * @get_dentry: find a dentry for the inode given a file handle sub-fragment * * Description: * The export_operations structure provides a means for nfsd to communicate diff --git a/include/linux/net.h b/include/linux/net.h index 7823b348250..e5914c1f0c4 100644 --- a/include/linux/net.h +++ b/include/linux/net.h @@ -64,19 +64,19 @@ typedef enum { #define SOCK_PASSCRED 3 #ifndef ARCH_HAS_SOCKET_TYPES -/** sock_type - Socket types - * +/** + * enum sock_type - Socket types + * @SOCK_STREAM: stream (connection) socket + * @SOCK_DGRAM: datagram (conn.less) socket + * @SOCK_RAW: raw socket + * @SOCK_RDM: reliably-delivered message + * @SOCK_SEQPACKET: sequential packet socket + * @SOCK_PACKET: linux specific way of getting packets at the dev level. + * For writing rarp and other similar things on the user level. + * * When adding some new socket type please * grep ARCH_HAS_SOCKET_TYPE include/asm-* /socket.h, at least MIPS * overrides this enum for binary compat reasons. - * - * @SOCK_STREAM - stream (connection) socket - * @SOCK_DGRAM - datagram (conn.less) socket - * @SOCK_RAW - raw socket - * @SOCK_RDM - reliably-delivered message - * @SOCK_SEQPACKET - sequential packet socket - * @SOCK_PACKET - linux specific way of getting packets at the dev level. - * For writing rarp and other similar things on the user level. */ enum sock_type { SOCK_STREAM = 1, @@ -93,15 +93,15 @@ enum sock_type { /** * struct socket - general BSD socket - * @state - socket state (%SS_CONNECTED, etc) - * @flags - socket flags (%SOCK_ASYNC_NOSPACE, etc) - * @ops - protocol specific socket operations - * @fasync_list - Asynchronous wake up list - * @file - File back pointer for gc - * @sk - internal networking protocol agnostic socket representation - * @wait - wait queue for several uses - * @type - socket type (%SOCK_STREAM, etc) - * @passcred - credentials (used only in Unix Sockets (aka PF_LOCAL)) + * @state: socket state (%SS_CONNECTED, etc) + * @flags: socket flags (%SOCK_ASYNC_NOSPACE, etc) + * @ops: protocol specific socket operations + * @fasync_list: Asynchronous wake up list + * @file: File back pointer for gc + * @sk: internal networking protocol agnostic socket representation + * @wait: wait queue for several uses + * @type: socket type (%SOCK_STREAM, etc) + * @passcred: credentials (used only in Unix Sockets (aka PF_LOCAL)) */ struct socket { socket_state state; diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h index 22b70181961..c77d745cbd3 100644 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@ -968,6 +968,7 @@ static inline void __skb_queue_purge(struct sk_buff_head *list) kfree_skb(skb); } +#ifndef CONFIG_HAVE_ARCH_DEV_ALLOC_SKB /** * __dev_alloc_skb - allocate an skbuff for sending * @length: length to allocate @@ -980,7 +981,6 @@ static inline void __skb_queue_purge(struct sk_buff_head *list) * * %NULL is returned in there is no free memory. */ -#ifndef CONFIG_HAVE_ARCH_DEV_ALLOC_SKB static inline struct sk_buff *__dev_alloc_skb(unsigned int length, int gfp_mask) { diff --git a/include/net/sock.h b/include/net/sock.h index be81cabd0da..5bc180adfb1 100644 --- a/include/net/sock.h +++ b/include/net/sock.h @@ -90,17 +90,17 @@ do { spin_lock_init(&((__sk)->sk_lock.slock)); \ struct sock; /** - * struct sock_common - minimal network layer representation of sockets - * @skc_family - network address family - * @skc_state - Connection state - * @skc_reuse - %SO_REUSEADDR setting - * @skc_bound_dev_if - bound device index if != 0 - * @skc_node - main hash linkage for various protocol lookup tables - * @skc_bind_node - bind hash linkage for various protocol lookup tables - * @skc_refcnt - reference count - * - * This is the minimal network layer representation of sockets, the header - * for struct sock and struct tcp_tw_bucket. + * struct sock_common - minimal network layer representation of sockets + * @skc_family: network address family + * @skc_state: Connection state + * @skc_reuse: %SO_REUSEADDR setting + * @skc_bound_dev_if: bound device index if != 0 + * @skc_node: main hash linkage for various protocol lookup tables + * @skc_bind_node: bind hash linkage for various protocol lookup tables + * @skc_refcnt: reference count + * + * This is the minimal network layer representation of sockets, the header + * for struct sock and struct tcp_tw_bucket. */ struct sock_common { unsigned short skc_family; @@ -114,60 +114,60 @@ struct sock_common { /** * struct sock - network layer representation of sockets - * @__sk_common - shared layout with tcp_tw_bucket - * @sk_shutdown - mask of %SEND_SHUTDOWN and/or %RCV_SHUTDOWN - * @sk_userlocks - %SO_SNDBUF and %SO_RCVBUF settings - * @sk_lock - synchronizer - * @sk_rcvbuf - size of receive buffer in bytes - * @sk_sleep - sock wait queue - * @sk_dst_cache - destination cache - * @sk_dst_lock - destination cache lock - * @sk_policy - flow policy - * @sk_rmem_alloc - receive queue bytes committed - * @sk_receive_queue - incoming packets - * @sk_wmem_alloc - transmit queue bytes committed - * @sk_write_queue - Packet sending queue - * @sk_omem_alloc - "o" is "option" or "other" - * @sk_wmem_queued - persistent queue size - * @sk_forward_alloc - space allocated forward - * @sk_allocation - allocation mode - * @sk_sndbuf - size of send buffer in bytes - * @sk_flags - %SO_LINGER (l_onoff), %SO_BROADCAST, %SO_KEEPALIVE, %SO_OOBINLINE settings - * @sk_no_check - %SO_NO_CHECK setting, wether or not checkup packets - * @sk_route_caps - route capabilities (e.g. %NETIF_F_TSO) - * @sk_lingertime - %SO_LINGER l_linger setting - * @sk_hashent - hash entry in several tables (e.g. tcp_ehash) - * @sk_backlog - always used with the per-socket spinlock held - * @sk_callback_lock - used with the callbacks in the end of this struct - * @sk_error_queue - rarely used - * @sk_prot - protocol handlers inside a network family - * @sk_err - last error - * @sk_err_soft - errors that don't cause failure but are the cause of a persistent failure not just 'timed out' - * @sk_ack_backlog - current listen backlog - * @sk_max_ack_backlog - listen backlog set in listen() - * @sk_priority - %SO_PRIORITY setting - * @sk_type - socket type (%SOCK_STREAM, etc) - * @sk_protocol - which protocol this socket belongs in this network family - * @sk_peercred - %SO_PEERCRED setting - * @sk_rcvlowat - %SO_RCVLOWAT setting - * @sk_rcvtimeo - %SO_RCVTIMEO setting - * @sk_sndtimeo - %SO_SNDTIMEO setting - * @sk_filter - socket filtering instructions - * @sk_protinfo - private area, net family specific, when not using slab - * @sk_timer - sock cleanup timer - * @sk_stamp - time stamp of last packet received - * @sk_socket - Identd and reporting IO signals - * @sk_user_data - RPC layer private data - * @sk_sndmsg_page - cached page for sendmsg - * @sk_sndmsg_off - cached offset for sendmsg - * @sk_send_head - front of stuff to transmit - * @sk_write_pending - a write to stream socket waits to start - * @sk_state_change - callback to indicate change in the state of the sock - * @sk_data_ready - callback to indicate there is data to be processed - * @sk_write_space - callback to indicate there is bf sending space available - * @sk_error_report - callback to indicate errors (e.g. %MSG_ERRQUEUE) - * @sk_backlog_rcv - callback to process the backlog - * @sk_destruct - called at sock freeing time, i.e. when all refcnt == 0 + * @__sk_common: shared layout with tcp_tw_bucket + * @sk_shutdown: mask of %SEND_SHUTDOWN and/or %RCV_SHUTDOWN + * @sk_userlocks: %SO_SNDBUF and %SO_RCVBUF settings + * @sk_lock: synchronizer + * @sk_rcvbuf: size of receive buffer in bytes + * @sk_sleep: sock wait queue + * @sk_dst_cache: destination cache + * @sk_dst_lock: destination cache lock + * @sk_policy: flow policy + * @sk_rmem_alloc: receive queue bytes committed + * @sk_receive_queue: incoming packets + * @sk_wmem_alloc: transmit queue bytes committed + * @sk_write_queue: Packet sending queue + * @sk_omem_alloc: "o" is "option" or "other" + * @sk_wmem_queued: persistent queue size + * @sk_forward_alloc: space allocated forward + * @sk_allocation: allocation mode + * @sk_sndbuf: size of send buffer in bytes + * @sk_flags: %SO_LINGER (l_onoff), %SO_BROADCAST, %SO_KEEPALIVE, %SO_OOBINLINE settings + * @sk_no_check: %SO_NO_CHECK setting, wether or not checkup packets + * @sk_route_caps: route capabilities (e.g. %NETIF_F_TSO) + * @sk_lingertime: %SO_LINGER l_linger setting + * @sk_hashent: hash entry in several tables (e.g. tcp_ehash) + * @sk_backlog: always used with the per-socket spinlock held + * @sk_callback_lock: used with the callbacks in the end of this struct + * @sk_error_queue: rarely used + * @sk_prot: protocol handlers inside a network family + * @sk_err: last error + * @sk_err_soft: errors that don't cause failure but are the cause of a persistent failure not just 'timed out' + * @sk_ack_backlog: current listen backlog + * @sk_max_ack_backlog: listen backlog set in listen() + * @sk_priority: %SO_PRIORITY setting + * @sk_type: socket type (%SOCK_STREAM, etc) + * @sk_protocol: which protocol this socket belongs in this network family + * @sk_peercred: %SO_PEERCRED setting + * @sk_rcvlowat: %SO_RCVLOWAT setting + * @sk_rcvtimeo: %SO_RCVTIMEO setting + * @sk_sndtimeo: %SO_SNDTIMEO setting + * @sk_filter: socket filtering instructions + * @sk_protinfo: private area, net family specific, when not using slab + * @sk_timer: sock cleanup timer + * @sk_stamp: time stamp of last packet received + * @sk_socket: Identd and reporting IO signals + * @sk_user_data: RPC layer private data + * @sk_sndmsg_page: cached page for sendmsg + * @sk_sndmsg_off: cached offset for sendmsg + * @sk_send_head: front of stuff to transmit + * @sk_write_pending: a write to stream socket waits to start + * @sk_state_change: callback to indicate change in the state of the sock + * @sk_data_ready: callback to indicate there is data to be processed + * @sk_write_space: callback to indicate there is bf sending space available + * @sk_error_report: callback to indicate errors (e.g. %MSG_ERRQUEUE) + * @sk_backlog_rcv: callback to process the backlog + * @sk_destruct: called at sock freeing time, i.e. when all refcnt == 0 */ struct sock { /* @@ -1223,8 +1223,8 @@ sock_recv_timestamp(struct msghdr *msg, struct sock *sk, struct sk_buff *skb) /** * sk_eat_skb - Release a skb if it is no longer needed - * @sk - socket to eat this skb from - * @skb - socket buffer to eat + * @sk: socket to eat this skb from + * @skb: socket buffer to eat * * This routine must be called with interrupts disabled or with the socket * locked so that the sk_buff queue operation is ok. diff --git a/kernel/exit.c b/kernel/exit.c index eb8da36e13d..419d9d3c4c4 100644 --- a/kernel/exit.c +++ b/kernel/exit.c @@ -210,7 +210,7 @@ static inline int has_stopped_jobs(int pgrp) } /** - * reparent_to_init() - Reparent the calling kernel thread to the init task. + * reparent_to_init - Reparent the calling kernel thread to the init task. * * If a kernel thread is launched as a result of a system call, or if * it ever exits, it should generally reparent itself to init so that diff --git a/kernel/power/swsusp.c b/kernel/power/swsusp.c index ae5bebc3b18..90b3b68dee3 100644 --- a/kernel/power/swsusp.c +++ b/kernel/power/swsusp.c @@ -1099,7 +1099,7 @@ static struct pbe * swsusp_pagedir_relocate(struct pbe *pblist) return pblist; } -/** +/* * Using bio to read from swap. * This code requires a bit more work than just using buffer heads * but, it is the recommended way for 2.5/2.6. diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 80ce7f2104d..fc1b1064c50 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -1355,8 +1355,7 @@ static int __init build_zonelists_node(pg_data_t *pgdat, struct zonelist *zoneli #define MAX_NODE_LOAD (num_online_nodes()) static int __initdata node_load[MAX_NUMNODES]; /** - * find_next_best_node - find the next node that should appear in a given - * node's fallback list + * find_next_best_node - find the next node that should appear in a given node's fallback list * @node: node whose fallback list we're appending * @used_node_mask: nodemask_t of already used nodes * diff --git a/mm/vmalloc.c b/mm/vmalloc.c index c6182f6f130..2bd83e5c2bb 100644 --- a/mm/vmalloc.c +++ b/mm/vmalloc.c @@ -475,6 +475,10 @@ void *vmalloc(unsigned long size) EXPORT_SYMBOL(vmalloc); +#ifndef PAGE_KERNEL_EXEC +# define PAGE_KERNEL_EXEC PAGE_KERNEL +#endif + /** * vmalloc_exec - allocate virtually contiguous, executable memory * @@ -488,10 +492,6 @@ EXPORT_SYMBOL(vmalloc); * use __vmalloc() instead. */ -#ifndef PAGE_KERNEL_EXEC -# define PAGE_KERNEL_EXEC PAGE_KERNEL -#endif - void *vmalloc_exec(unsigned long size) { return __vmalloc(size, GFP_KERNEL | __GFP_HIGHMEM, PAGE_KERNEL_EXEC); diff --git a/net/core/datagram.c b/net/core/datagram.c index d1bfd279cc1..27c5cd94282 100644 --- a/net/core/datagram.c +++ b/net/core/datagram.c @@ -115,10 +115,10 @@ out_noerr: /** * skb_recv_datagram - Receive a datagram skbuff - * @sk - socket - * @flags - MSG_ flags - * @noblock - blocking operation? - * @err - error code returned + * @sk: socket + * @flags: MSG_ flags + * @noblock: blocking operation? + * @err: error code returned * * Get a datagram skbuff, understands the peeking, nonblocking wakeups * and possible races. This replaces identical code in packet, raw and @@ -201,10 +201,10 @@ void skb_free_datagram(struct sock *sk, struct sk_buff *skb) /** * skb_copy_datagram_iovec - Copy a datagram to an iovec. - * @skb - buffer to copy - * @offset - offset in the buffer to start copying from - * @iovec - io vector to copy to - * @len - amount of data to copy from buffer to iovec + * @skb: buffer to copy + * @offset: offset in the buffer to start copying from + * @iovec: io vector to copy to + * @len: amount of data to copy from buffer to iovec * * Note: the iovec is modified during the copy. */ @@ -377,9 +377,9 @@ fault: /** * skb_copy_and_csum_datagram_iovec - Copy and checkum skb to user iovec. - * @skb - skbuff - * @hlen - hardware length - * @iovec - io vector + * @skb: skbuff + * @hlen: hardware length + * @iovec: io vector * * Caller _must_ check that skb will fit to this iovec. * @@ -425,9 +425,9 @@ fault: /** * datagram_poll - generic datagram poll - * @file - file struct - * @sock - socket - * @wait - poll table + * @file: file struct + * @sock: socket + * @wait: poll table * * Datagram poll: Again totally generic. This also handles * sequenced packet sockets providing the socket receive queue diff --git a/net/core/sock.c b/net/core/sock.c index 5c2f72fa101..98171ddd7e7 100644 --- a/net/core/sock.c +++ b/net/core/sock.c @@ -616,10 +616,10 @@ lenout: /** * sk_alloc - All socket objects are allocated here - * @family - protocol family - * @priority - for allocation (%GFP_KERNEL, %GFP_ATOMIC, etc) - * @prot - struct proto associated with this new sock instance - * @zero_it - if we should zero the newly allocated sock + * @family: protocol family + * @priority: for allocation (%GFP_KERNEL, %GFP_ATOMIC, etc) + * @prot: struct proto associated with this new sock instance + * @zero_it: if we should zero the newly allocated sock */ struct sock *sk_alloc(int family, int priority, struct proto *prot, int zero_it) { @@ -970,8 +970,8 @@ static void __release_sock(struct sock *sk) /** * sk_wait_data - wait for data to arrive at sk_receive_queue - * sk - sock to wait on - * timeo - for how long + * @sk: sock to wait on + * @timeo: for how long * * Now socket state including sk->sk_err is changed only under lock, * hence we may omit checks after joining wait queue. diff --git a/net/core/stream.c b/net/core/stream.c index 1e27a57b5a9..ac9edfdf874 100644 --- a/net/core/stream.c +++ b/net/core/stream.c @@ -21,7 +21,7 @@ /** * sk_stream_write_space - stream socket write_space callback. - * sk - socket + * @sk: socket * * FIXME: write proper description */ @@ -43,8 +43,8 @@ EXPORT_SYMBOL(sk_stream_write_space); /** * sk_stream_wait_connect - Wait for a socket to get into the connected state - * @sk - sock to wait on - * @timeo_p - for how long to wait + * @sk: sock to wait on + * @timeo_p: for how long to wait * * Must be called with the socket locked. */ @@ -79,7 +79,7 @@ EXPORT_SYMBOL(sk_stream_wait_connect); /** * sk_stream_closing - Return 1 if we still have things to send in our buffers. - * @sk - socket to verify + * @sk: socket to verify */ static inline int sk_stream_closing(struct sock *sk) { @@ -107,8 +107,8 @@ EXPORT_SYMBOL(sk_stream_wait_close); /** * sk_stream_wait_memory - Wait for more memory for a socket - * @sk - socket to wait for memory - * @timeo_p - for how long + * @sk: socket to wait for memory + * @timeo_p: for how long */ int sk_stream_wait_memory(struct sock *sk, long *timeo_p) { diff --git a/net/sunrpc/xdr.c b/net/sunrpc/xdr.c index 4484931018e..67b9f035ba8 100644 --- a/net/sunrpc/xdr.c +++ b/net/sunrpc/xdr.c @@ -46,9 +46,9 @@ xdr_decode_netobj(u32 *p, struct xdr_netobj *obj) /** * xdr_encode_opaque_fixed - Encode fixed length opaque data - * @p - pointer to current position in XDR buffer. - * @ptr - pointer to data to encode (or NULL) - * @nbytes - size of data. + * @p: pointer to current position in XDR buffer. + * @ptr: pointer to data to encode (or NULL) + * @nbytes: size of data. * * Copy the array of data of length nbytes at ptr to the XDR buffer * at position p, then align to the next 32-bit boundary by padding @@ -76,9 +76,9 @@ EXPORT_SYMBOL(xdr_encode_opaque_fixed); /** * xdr_encode_opaque - Encode variable length opaque data - * @p - pointer to current position in XDR buffer. - * @ptr - pointer to data to encode (or NULL) - * @nbytes - size of data. + * @p: pointer to current position in XDR buffer. + * @ptr: pointer to data to encode (or NULL) + * @nbytes: size of data. * * Returns the updated current XDR buffer position */ diff --git a/scripts/kernel-doc b/scripts/kernel-doc index 8b1dab63f11..3cc333070e5 100755 --- a/scripts/kernel-doc +++ b/scripts/kernel-doc @@ -1465,6 +1465,8 @@ sub dump_function($$) { $prototype =~ s/^static +//; $prototype =~ s/^extern +//; + $prototype =~ s/^fastcall +//; + $prototype =~ s/^asmlinkage +//; $prototype =~ s/^inline +//; $prototype =~ s/^__inline__ +//; $prototype =~ s/^#define +//; #ak added -- cgit v1.2.3-70-g09d2 From 67be2dd1bace0ec7ce2dbc1bba3f8df3d7be597e Mon Sep 17 00:00:00 2001 From: Martin Waitz Date: Sun, 1 May 2005 08:59:26 -0700 Subject: [PATCH] DocBook: fix some descriptions Some KernelDoc descriptions are updated to match the current code. No code changes. Signed-off-by: Martin Waitz Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/acpi/scan.c | 4 +- drivers/base/platform.c | 4 +- drivers/pci/hotplug.c | 4 ++ drivers/pci/rom.c | 14 +++---- drivers/pnp/manager.c | 2 +- fs/bio.c | 2 + fs/buffer.c | 11 +++--- fs/fs-writeback.c | 4 +- fs/mpage.c | 92 ++++++++++++++++++++++---------------------- fs/proc/base.c | 2 +- fs/seq_file.c | 9 ++++- fs/sysfs/file.c | 4 +- include/linux/fs.h | 100 +++++++++++++++++++++++++----------------------- include/linux/skbuff.h | 5 ++- include/net/sock.h | 1 + kernel/sched.c | 3 +- kernel/sysctl.c | 2 + lib/kobject.c | 3 +- mm/filemap.c | 17 ++++---- mm/page-writeback.c | 6 +-- mm/truncate.c | 4 +- net/core/datagram.c | 4 +- 22 files changed, 160 insertions(+), 137 deletions(-) (limited to 'kernel') diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c index e7ca0662656..119c94093a1 100644 --- a/drivers/acpi/scan.c +++ b/drivers/acpi/scan.c @@ -379,8 +379,8 @@ ACPI_DEVICE_ATTR(eject, 0200, NULL, acpi_eject_store); /** * setup_sys_fs_device_files - sets up the device files under device namespace - * @@dev: acpi_device object - * @@func: function pointer to create or destroy the device file + * @dev: acpi_device object + * @func: function pointer to create or destroy the device file */ static void setup_sys_fs_device_files ( diff --git a/drivers/base/platform.c b/drivers/base/platform.c index cd6453905a9..3a5f4c99179 100644 --- a/drivers/base/platform.c +++ b/drivers/base/platform.c @@ -115,7 +115,7 @@ int platform_add_devices(struct platform_device **devs, int num) /** * platform_device_register - add a platform-level device - * @dev: platform device we're adding + * @pdev: platform device we're adding * */ int platform_device_register(struct platform_device * pdev) @@ -174,7 +174,7 @@ int platform_device_register(struct platform_device * pdev) /** * platform_device_unregister - remove a platform-level device - * @dev: platform device we're removing + * @pdev: platform device we're removing * * Note that this function will also release all memory- and port-based * resources owned by the device (@dev->resource). diff --git a/drivers/pci/hotplug.c b/drivers/pci/hotplug.c index d471b3ea5d1..021d0f76bc4 100644 --- a/drivers/pci/hotplug.c +++ b/drivers/pci/hotplug.c @@ -120,6 +120,10 @@ static int pci_visit_bridge (struct pci_visit * fn, /** * pci_visit_dev - scans the pci buses. + * @fn: callback functions that are called while visiting + * @wrapped_dev: the device to scan + * @wrapped_parent: the bus where @wrapped_dev is connected to + * * Every bus and every function is presented to a custom * function that can act upon it. */ diff --git a/drivers/pci/rom.c b/drivers/pci/rom.c index 3e64ff64b38..838575e3fac 100644 --- a/drivers/pci/rom.c +++ b/drivers/pci/rom.c @@ -14,7 +14,7 @@ /** * pci_enable_rom - enable ROM decoding for a PCI device - * @dev: PCI device to enable + * @pdev: PCI device to enable * * Enable ROM decoding on @dev. This involves simply turning on the last * bit of the PCI ROM BAR. Note that some cards may share address decoders @@ -32,7 +32,7 @@ static void pci_enable_rom(struct pci_dev *pdev) /** * pci_disable_rom - disable ROM decoding for a PCI device - * @dev: PCI device to disable + * @pdev: PCI device to disable * * Disable ROM decoding on a PCI device by turning off the last bit in the * ROM BAR. @@ -47,7 +47,7 @@ static void pci_disable_rom(struct pci_dev *pdev) /** * pci_map_rom - map a PCI ROM to kernel space - * @dev: pointer to pci device struct + * @pdev: pointer to pci device struct * @size: pointer to receive size of pci window over ROM * @return: kernel virtual pointer to image of ROM * @@ -132,7 +132,7 @@ void __iomem *pci_map_rom(struct pci_dev *pdev, size_t *size) /** * pci_map_rom_copy - map a PCI ROM to kernel space, create a copy - * @dev: pointer to pci device struct + * @pdev: pointer to pci device struct * @size: pointer to receive size of pci window over ROM * @return: kernel virtual pointer to image of ROM * @@ -166,7 +166,7 @@ void __iomem *pci_map_rom_copy(struct pci_dev *pdev, size_t *size) /** * pci_unmap_rom - unmap the ROM from kernel space - * @dev: pointer to pci device struct + * @pdev: pointer to pci device struct * @rom: virtual address of the previous mapping * * Remove a mapping of a previously mapped ROM @@ -187,7 +187,7 @@ void pci_unmap_rom(struct pci_dev *pdev, void __iomem *rom) /** * pci_remove_rom - disable the ROM and remove its sysfs attribute - * @dev: pointer to pci device struct + * @pdev: pointer to pci device struct * * Remove the rom file in sysfs and disable ROM decoding. */ @@ -206,7 +206,7 @@ void pci_remove_rom(struct pci_dev *pdev) /** * pci_cleanup_rom - internal routine for freeing the ROM copy created * by pci_map_rom_copy called from remove.c - * @dev: pointer to pci device struct + * @pdev: pointer to pci device struct * * Free the copied ROM if we allocated one. */ diff --git a/drivers/pnp/manager.c b/drivers/pnp/manager.c index 639e0425348..65ecef73853 100644 --- a/drivers/pnp/manager.c +++ b/drivers/pnp/manager.c @@ -253,7 +253,7 @@ void pnp_init_resource_table(struct pnp_resource_table *table) /** * pnp_clean_resources - clears resources that were not manually set - * @res - the resources to clean + * @res: the resources to clean * */ static void pnp_clean_resource_table(struct pnp_resource_table * res) diff --git a/fs/bio.c b/fs/bio.c index e5349e83456..3a1472acc36 100644 --- a/fs/bio.c +++ b/fs/bio.c @@ -140,6 +140,7 @@ inline void bio_init(struct bio *bio) * bio_alloc_bioset - allocate a bio for I/O * @gfp_mask: the GFP_ mask given to the slab allocator * @nr_iovecs: number of iovecs to pre-allocate + * @bs: the bio_set to allocate from * * Description: * bio_alloc_bioset will first try it's on mempool to satisfy the allocation. @@ -629,6 +630,7 @@ out: /** * bio_map_user - map user address into bio + * @q: the request_queue_t for the bio * @bdev: destination block device * @uaddr: start of user address * @len: length in bytes diff --git a/fs/buffer.c b/fs/buffer.c index 792cbacbbf4..5f525b3c6d9 100644 --- a/fs/buffer.c +++ b/fs/buffer.c @@ -774,15 +774,14 @@ repeat: /** * sync_mapping_buffers - write out and wait upon a mapping's "associated" * buffers - * @buffer_mapping - the mapping which backs the buffers' data - * @mapping - the mapping which wants those buffers written + * @mapping: the mapping which wants those buffers written * * Starts I/O against the buffers at mapping->private_list, and waits upon * that I/O. * - * Basically, this is a convenience function for fsync(). @buffer_mapping is - * the blockdev which "owns" the buffers and @mapping is a file or directory - * which needs those buffers to be written for a successful fsync(). + * Basically, this is a convenience function for fsync(). + * @mapping is a file or directory which needs those buffers to be written for + * a successful fsync(). */ int sync_mapping_buffers(struct address_space *mapping) { @@ -1263,6 +1262,7 @@ __getblk_slow(struct block_device *bdev, sector_t block, int size) /** * mark_buffer_dirty - mark a buffer_head as needing writeout + * @bh: the buffer_head to mark dirty * * mark_buffer_dirty() will set the dirty bit against the buffer, then set its * backing page dirty, then tag the page as dirty in its address_space's radix @@ -1501,6 +1501,7 @@ EXPORT_SYMBOL(__breadahead); /** * __bread() - reads a specified block and returns the bh + * @bdev: the block_device to read from * @block: number of block * @size: size (in bytes) to read * diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c index d6efb36cab2..8e050fa5821 100644 --- a/fs/fs-writeback.c +++ b/fs/fs-writeback.c @@ -512,7 +512,8 @@ restart: } /** - * sync_inodes + * sync_inodes - writes all inodes to disk + * @wait: wait for completion * * sync_inodes() goes through each super block's dirty inode list, writes the * inodes out, waits on the writeout and puts the inodes back on the normal @@ -604,6 +605,7 @@ EXPORT_SYMBOL(sync_inode); /** * generic_osync_inode - flush all dirty data for a given inode to disk * @inode: inode to write + * @mapping: the address_space that should be flushed * @what: what to write and wait upon * * This can be called by file_write functions for files which have the diff --git a/fs/mpage.c b/fs/mpage.c index 3923facf94e..32c7c8fcfce 100644 --- a/fs/mpage.c +++ b/fs/mpage.c @@ -160,52 +160,6 @@ map_buffer_to_page(struct page *page, struct buffer_head *bh, int page_block) } while (page_bh != head); } -/** - * mpage_readpages - populate an address space with some pages, and - * start reads against them. - * - * @mapping: the address_space - * @pages: The address of a list_head which contains the target pages. These - * pages have their ->index populated and are otherwise uninitialised. - * - * The page at @pages->prev has the lowest file offset, and reads should be - * issued in @pages->prev to @pages->next order. - * - * @nr_pages: The number of pages at *@pages - * @get_block: The filesystem's block mapper function. - * - * This function walks the pages and the blocks within each page, building and - * emitting large BIOs. - * - * If anything unusual happens, such as: - * - * - encountering a page which has buffers - * - encountering a page which has a non-hole after a hole - * - encountering a page with non-contiguous blocks - * - * then this code just gives up and calls the buffer_head-based read function. - * It does handle a page which has holes at the end - that is a common case: - * the end-of-file on blocksize < PAGE_CACHE_SIZE setups. - * - * BH_Boundary explanation: - * - * There is a problem. The mpage read code assembles several pages, gets all - * their disk mappings, and then submits them all. That's fine, but obtaining - * the disk mappings may require I/O. Reads of indirect blocks, for example. - * - * So an mpage read of the first 16 blocks of an ext2 file will cause I/O to be - * submitted in the following order: - * 12 0 1 2 3 4 5 6 7 8 9 10 11 13 14 15 16 - * because the indirect block has to be read to get the mappings of blocks - * 13,14,15,16. Obviously, this impacts performance. - * - * So what we do it to allow the filesystem's get_block() function to set - * BH_Boundary when it maps block 11. BH_Boundary says: mapping of the block - * after this one will require I/O against a block which is probably close to - * this one. So you should push what I/O you have currently accumulated. - * - * This all causes the disk requests to be issued in the correct order. - */ static struct bio * do_mpage_readpage(struct bio *bio, struct page *page, unsigned nr_pages, sector_t *last_block_in_bio, get_block_t get_block) @@ -320,6 +274,52 @@ confused: goto out; } +/** + * mpage_readpages - populate an address space with some pages, and + * start reads against them. + * + * @mapping: the address_space + * @pages: The address of a list_head which contains the target pages. These + * pages have their ->index populated and are otherwise uninitialised. + * + * The page at @pages->prev has the lowest file offset, and reads should be + * issued in @pages->prev to @pages->next order. + * + * @nr_pages: The number of pages at *@pages + * @get_block: The filesystem's block mapper function. + * + * This function walks the pages and the blocks within each page, building and + * emitting large BIOs. + * + * If anything unusual happens, such as: + * + * - encountering a page which has buffers + * - encountering a page which has a non-hole after a hole + * - encountering a page with non-contiguous blocks + * + * then this code just gives up and calls the buffer_head-based read function. + * It does handle a page which has holes at the end - that is a common case: + * the end-of-file on blocksize < PAGE_CACHE_SIZE setups. + * + * BH_Boundary explanation: + * + * There is a problem. The mpage read code assembles several pages, gets all + * their disk mappings, and then submits them all. That's fine, but obtaining + * the disk mappings may require I/O. Reads of indirect blocks, for example. + * + * So an mpage read of the first 16 blocks of an ext2 file will cause I/O to be + * submitted in the following order: + * 12 0 1 2 3 4 5 6 7 8 9 10 11 13 14 15 16 + * because the indirect block has to be read to get the mappings of blocks + * 13,14,15,16. Obviously, this impacts performance. + * + * So what we do it to allow the filesystem's get_block() function to set + * BH_Boundary when it maps block 11. BH_Boundary says: mapping of the block + * after this one will require I/O against a block which is probably close to + * this one. So you should push what I/O you have currently accumulated. + * + * This all causes the disk requests to be issued in the correct order. + */ int mpage_readpages(struct address_space *mapping, struct list_head *pages, unsigned nr_pages, get_block_t get_block) diff --git a/fs/proc/base.c b/fs/proc/base.c index 2b8cd045111..07cafdf74ef 100644 --- a/fs/proc/base.c +++ b/fs/proc/base.c @@ -1742,7 +1742,7 @@ struct dentry *proc_pid_unhash(struct task_struct *p) /** * proc_pid_flush - recover memory used by stale /proc/@pid/x entries - * @proc_entry: directoy to prune. + * @proc_dentry: directoy to prune. * * Shrink the /proc directory that was used by the just killed thread. */ diff --git a/fs/seq_file.c b/fs/seq_file.c index 650c43ba86c..38ef913767f 100644 --- a/fs/seq_file.c +++ b/fs/seq_file.c @@ -51,7 +51,10 @@ EXPORT_SYMBOL(seq_open); /** * seq_read - ->read() method for sequential files. - * @file, @buf, @size, @ppos: see file_operations method + * @file: the file to read from + * @buf: the buffer to read to + * @size: the maximum number of bytes to read + * @ppos: the current position in the file * * Ready-made ->f_op->read() */ @@ -219,7 +222,9 @@ Eoverflow: /** * seq_lseek - ->llseek() method for sequential files. - * @file, @offset, @origin: see file_operations method + * @file: the file in question + * @offset: new position + * @origin: 0 for absolute, 1 for relative position * * Ready-made ->f_op->llseek() */ diff --git a/fs/sysfs/file.c b/fs/sysfs/file.c index da25aeb0e06..364208071e1 100644 --- a/fs/sysfs/file.c +++ b/fs/sysfs/file.c @@ -96,7 +96,7 @@ static int fill_read_buffer(struct dentry * dentry, struct sysfs_buffer * buffer /** * flush_read_buffer - push buffer to userspace. * @buffer: data buffer for file. - * @userbuf: user-passed buffer. + * @buf: user-passed buffer. * @count: number of bytes requested. * @ppos: file position. * @@ -164,7 +164,7 @@ out: /** * fill_write_buffer - copy buffer from userspace. * @buffer: data buffer for file. - * @userbuf: data from user. + * @buf: data from user. * @count: number of bytes in @userbuf. * * Allocate @buffer->page if it hasn't been already, then diff --git a/include/linux/fs.h b/include/linux/fs.h index 3f825b085c8..4edba067a71 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -1065,71 +1065,75 @@ int sync_inode(struct inode *inode, struct writeback_control *wbc); * with a particular exported file system - particularly enabling nfsd and * the filesystem to co-operate when dealing with file handles. * - * export_operations contains two basic operation for dealing with file handles, - * decode_fh() and encode_fh(), and allows for some other operations to be defined - * which standard helper routines use to get specific information from the - * filesystem. + * export_operations contains two basic operation for dealing with file + * handles, decode_fh() and encode_fh(), and allows for some other + * operations to be defined which standard helper routines use to get + * specific information from the filesystem. * * nfsd encodes information use to determine which filesystem a filehandle - * applies to in the initial part of the file handle. The remainder, termed a - * file handle fragment, is controlled completely by the filesystem. - * The standard helper routines assume that this fragment will contain one or two - * sub-fragments, one which identifies the file, and one which may be used to - * identify the (a) directory containing the file. + * applies to in the initial part of the file handle. The remainder, termed + * a file handle fragment, is controlled completely by the filesystem. The + * standard helper routines assume that this fragment will contain one or + * two sub-fragments, one which identifies the file, and one which may be + * used to identify the (a) directory containing the file. * * In some situations, nfsd needs to get a dentry which is connected into a - * specific part of the file tree. To allow for this, it passes the function - * acceptable() together with a @context which can be used to see if the dentry - * is acceptable. As there can be multiple dentrys for a given file, the filesystem - * should check each one for acceptability before looking for the next. As soon - * as an acceptable one is found, it should be returned. + * specific part of the file tree. To allow for this, it passes the + * function acceptable() together with a @context which can be used to see + * if the dentry is acceptable. As there can be multiple dentrys for a + * given file, the filesystem should check each one for acceptability before + * looking for the next. As soon as an acceptable one is found, it should + * be returned. * * decode_fh: - * @decode_fh is given a &struct super_block (@sb), a file handle fragment (@fh, @fh_len) - * and an acceptability testing function (@acceptable, @context). It should return - * a &struct dentry which refers to the same file that the file handle fragment refers - * to, and which passes the acceptability test. If it cannot, it should return - * a %NULL pointer if the file was found but no acceptable &dentries were available, or - * a %ERR_PTR error code indicating why it couldn't be found (e.g. %ENOENT or %ENOMEM). + * @decode_fh is given a &struct super_block (@sb), a file handle fragment + * (@fh, @fh_len) and an acceptability testing function (@acceptable, + * @context). It should return a &struct dentry which refers to the same + * file that the file handle fragment refers to, and which passes the + * acceptability test. If it cannot, it should return a %NULL pointer if + * the file was found but no acceptable &dentries were available, or a + * %ERR_PTR error code indicating why it couldn't be found (e.g. %ENOENT or + * %ENOMEM). * * encode_fh: - * @encode_fh should store in the file handle fragment @fh (using at most @max_len bytes) - * information that can be used by @decode_fh to recover the file refered to by the - * &struct dentry @de. If the @connectable flag is set, the encode_fh() should store - * sufficient information so that a good attempt can be made to find not only - * the file but also it's place in the filesystem. This typically means storing - * a reference to de->d_parent in the filehandle fragment. - * encode_fh() should return the number of bytes stored or a negative error code - * such as %-ENOSPC + * @encode_fh should store in the file handle fragment @fh (using at most + * @max_len bytes) information that can be used by @decode_fh to recover the + * file refered to by the &struct dentry @de. If the @connectable flag is + * set, the encode_fh() should store sufficient information so that a good + * attempt can be made to find not only the file but also it's place in the + * filesystem. This typically means storing a reference to de->d_parent in + * the filehandle fragment. encode_fh() should return the number of bytes + * stored or a negative error code such as %-ENOSPC * * get_name: - * @get_name should find a name for the given @child in the given @parent directory. - * The name should be stored in the @name (with the understanding that it is already - * pointing to a a %NAME_MAX+1 sized buffer. get_name() should return %0 on success, - * a negative error code or error. - * @get_name will be called without @parent->i_sem held. + * @get_name should find a name for the given @child in the given @parent + * directory. The name should be stored in the @name (with the + * understanding that it is already pointing to a a %NAME_MAX+1 sized + * buffer. get_name() should return %0 on success, a negative error code + * or error. @get_name will be called without @parent->i_sem held. * * get_parent: - * @get_parent should find the parent directory for the given @child which is also - * a directory. In the event that it cannot be found, or storage space cannot be - * allocated, a %ERR_PTR should be returned. + * @get_parent should find the parent directory for the given @child which + * is also a directory. In the event that it cannot be found, or storage + * space cannot be allocated, a %ERR_PTR should be returned. * * get_dentry: - * Given a &super_block (@sb) and a pointer to a file-system specific inode identifier, - * possibly an inode number, (@inump) get_dentry() should find the identified inode and - * return a dentry for that inode. - * Any suitable dentry can be returned including, if necessary, a new dentry created - * with d_alloc_root. The caller can then find any other extant dentrys by following the - * d_alias links. If a new dentry was created using d_alloc_root, DCACHE_NFSD_DISCONNECTED - * should be set, and the dentry should be d_rehash()ed. + * Given a &super_block (@sb) and a pointer to a file-system specific inode + * identifier, possibly an inode number, (@inump) get_dentry() should find + * the identified inode and return a dentry for that inode. Any suitable + * dentry can be returned including, if necessary, a new dentry created with + * d_alloc_root. The caller can then find any other extant dentrys by + * following the d_alias links. If a new dentry was created using + * d_alloc_root, DCACHE_NFSD_DISCONNECTED should be set, and the dentry + * should be d_rehash()ed. * - * If the inode cannot be found, either a %NULL pointer or an %ERR_PTR code can be returned. - * The @inump will be whatever was passed to nfsd_find_fh_dentry() in either the - * @obj or @parent parameters. + * If the inode cannot be found, either a %NULL pointer or an %ERR_PTR code + * can be returned. The @inump will be whatever was passed to + * nfsd_find_fh_dentry() in either the @obj or @parent parameters. * * Locking rules: - * get_parent is called with child->d_inode->i_sem down - * get_name is not (which is possibly inconsistent) + * get_parent is called with child->d_inode->i_sem down + * get_name is not (which is possibly inconsistent) */ struct export_operations { diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h index c77d745cbd3..cc04f5cd228 100644 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@ -167,13 +167,14 @@ struct skb_shared_info { * @h: Transport layer header * @nh: Network layer header * @mac: Link layer header - * @dst: FIXME: Describe this field + * @dst: destination entry + * @sp: the security path, used for xfrm * @cb: Control buffer. Free for use by every layer. Put private vars here * @len: Length of actual data * @data_len: Data length * @mac_len: Length of link layer header * @csum: Checksum - * @__unused: Dead field, may be reused + * @local_df: allow local fragmentation * @cloned: Head may be cloned (check refcnt to be sure) * @nohdr: Payload reference only, must not modify header * @pkt_type: Packet class diff --git a/include/net/sock.h b/include/net/sock.h index 5bc180adfb1..cc4c9190b7f 100644 --- a/include/net/sock.h +++ b/include/net/sock.h @@ -161,6 +161,7 @@ struct sock_common { * @sk_sndmsg_page: cached page for sendmsg * @sk_sndmsg_off: cached offset for sendmsg * @sk_send_head: front of stuff to transmit + * @sk_security: used by security modules * @sk_write_pending: a write to stream socket waits to start * @sk_state_change: callback to indicate change in the state of the sock * @sk_data_ready: callback to indicate there is data to be processed diff --git a/kernel/sched.c b/kernel/sched.c index 5dadcc6df7d..0dc3158667a 100644 --- a/kernel/sched.c +++ b/kernel/sched.c @@ -2906,6 +2906,7 @@ static void __wake_up_common(wait_queue_head_t *q, unsigned int mode, * @q: the waitqueue * @mode: which threads * @nr_exclusive: how many wake-one or wake-many threads to wake up + * @key: is directly passed to the wakeup function */ void fastcall __wake_up(wait_queue_head_t *q, unsigned int mode, int nr_exclusive, void *key) @@ -2928,7 +2929,7 @@ void fastcall __wake_up_locked(wait_queue_head_t *q, unsigned int mode) } /** - * __wake_up - sync- wake up threads blocked on a waitqueue. + * __wake_up_sync - wake up threads blocked on a waitqueue. * @q: the waitqueue * @mode: which threads * @nr_exclusive: how many wake-one or wake-many threads to wake up diff --git a/kernel/sysctl.c b/kernel/sysctl.c index 79dbd93bd69..701d12c6306 100644 --- a/kernel/sysctl.c +++ b/kernel/sysctl.c @@ -1991,6 +1991,8 @@ int proc_dointvec_userhz_jiffies(ctl_table *table, int write, struct file *filp, * @filp: the file structure * @buffer: the user buffer * @lenp: the size of the user buffer + * @ppos: file position + * @ppos: the current position in the file * * Reads/writes up to table->maxlen/sizeof(unsigned int) integer * values from/to the user buffer, treated as an ASCII string. diff --git a/lib/kobject.c b/lib/kobject.c index 5df8441c44e..94048826624 100644 --- a/lib/kobject.c +++ b/lib/kobject.c @@ -216,13 +216,12 @@ int kobject_register(struct kobject * kobj) /** * kobject_set_name - Set the name of an object * @kobj: object. - * @name: name. + * @fmt: format string used to build the name * * If strlen(name) >= KOBJ_NAME_LEN, then use a dynamically allocated * string that @kobj->k_name points to. Otherwise, use the static * @kobj->name array. */ - int kobject_set_name(struct kobject * kobj, const char * fmt, ...) { int error = 0; diff --git a/mm/filemap.c b/mm/filemap.c index c085af2332d..d5fdae2eb18 100644 --- a/mm/filemap.c +++ b/mm/filemap.c @@ -169,9 +169,10 @@ static int sync_page(void *word) /** * filemap_fdatawrite_range - start writeback against all of a mapping's * dirty pages that lie within the byte offsets - * @mapping: address space structure to write - * @start: offset in bytes where the range starts - * @end : offset in bytes where the range ends + * @mapping: address space structure to write + * @start: offset in bytes where the range starts + * @end: offset in bytes where the range ends + * @sync_mode: enable synchronous operation * * If sync_mode is WB_SYNC_ALL then this is a "data integrity" operation, as * opposed to a regular memory * cleansing writeback. The difference between @@ -535,8 +536,8 @@ EXPORT_SYMBOL(find_trylock_page); /** * find_lock_page - locate, pin and lock a pagecache page * - * @mapping - the address_space to search - * @offset - the page index + * @mapping: the address_space to search + * @offset: the page index * * Locates the desired pagecache page, locks it, increments its reference * count and returns its address. @@ -575,9 +576,9 @@ EXPORT_SYMBOL(find_lock_page); /** * find_or_create_page - locate or add a pagecache page * - * @mapping - the page's address_space - * @index - the page's index into the mapping - * @gfp_mask - page allocation mode + * @mapping: the page's address_space + * @index: the page's index into the mapping + * @gfp_mask: page allocation mode * * Locates a page in the pagecache. If the page is not present, a new page * is allocated using @gfp_mask and is added to the pagecache and to the VM's diff --git a/mm/page-writeback.c b/mm/page-writeback.c index 6ddd6a29c73..613b99a5591 100644 --- a/mm/page-writeback.c +++ b/mm/page-writeback.c @@ -255,7 +255,7 @@ static void balance_dirty_pages(struct address_space *mapping) /** * balance_dirty_pages_ratelimited - balance dirty memory state - * @mapping - address_space which was dirtied + * @mapping: address_space which was dirtied * * Processes which are dirtying memory should call in here once for each page * which was newly dirtied. The function will periodically check the system's @@ -562,8 +562,8 @@ int do_writepages(struct address_space *mapping, struct writeback_control *wbc) /** * write_one_page - write out a single page and optionally wait on I/O * - * @page - the page to write - * @wait - if true, wait on writeout + * @page: the page to write + * @wait: if true, wait on writeout * * The page must be locked by the caller and will be unlocked upon return. * diff --git a/mm/truncate.c b/mm/truncate.c index c9a63f0b69a..60c8764bfac 100644 --- a/mm/truncate.c +++ b/mm/truncate.c @@ -242,7 +242,7 @@ EXPORT_SYMBOL(invalidate_inode_pages); /** * invalidate_inode_pages2_range - remove range of pages from an address_space - * @mapping - the address_space + * @mapping: the address_space * @start: the page offset 'from' which to invalidate * @end: the page offset 'to' which to invalidate (inclusive) * @@ -322,7 +322,7 @@ EXPORT_SYMBOL_GPL(invalidate_inode_pages2_range); /** * invalidate_inode_pages2 - remove all pages from an address_space - * @mapping - the address_space + * @mapping: the address_space * * Any pages which are found to be mapped into pagetables are unmapped prior to * invalidation. diff --git a/net/core/datagram.c b/net/core/datagram.c index 27c5cd94282..fcee054b6f7 100644 --- a/net/core/datagram.c +++ b/net/core/datagram.c @@ -203,7 +203,7 @@ void skb_free_datagram(struct sock *sk, struct sk_buff *skb) * skb_copy_datagram_iovec - Copy a datagram to an iovec. * @skb: buffer to copy * @offset: offset in the buffer to start copying from - * @iovec: io vector to copy to + * @to: io vector to copy to * @len: amount of data to copy from buffer to iovec * * Note: the iovec is modified during the copy. @@ -379,7 +379,7 @@ fault: * skb_copy_and_csum_datagram_iovec - Copy and checkum skb to user iovec. * @skb: skbuff * @hlen: hardware length - * @iovec: io vector + * @iov: io vector * * Caller _must_ check that skb will fit to this iovec. * -- cgit v1.2.3-70-g09d2 From 408b664a7d394a5e4315fbd14aca49b042cb2b08 Mon Sep 17 00:00:00 2001 From: Adrian Bunk Date: Sun, 1 May 2005 08:59:29 -0700 Subject: [PATCH] make lots of things static Another large rollup of various patches from Adrian which make things static where they were needlessly exported. Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/i386/kernel/cpu/mtrr/generic.c | 4 ++-- arch/x86_64/kernel/early_printk.c | 2 +- drivers/char/agp/ali-agp.c | 4 ++-- drivers/char/agp/amd-k7-agp.c | 2 +- drivers/char/agp/amd64-agp.c | 2 +- drivers/char/agp/ati-agp.c | 2 +- drivers/char/agp/backend.c | 4 ++-- drivers/char/agp/efficeon-agp.c | 2 +- drivers/char/agp/frontend.c | 6 +++--- drivers/char/agp/nvidia-agp.c | 2 +- drivers/char/agp/sis-agp.c | 2 +- drivers/char/agp/sworks-agp.c | 2 +- drivers/char/agp/via-agp.c | 4 ++-- drivers/char/rio/rio_linux.c | 2 +- drivers/char/stallion.c | 4 ++-- drivers/isdn/capi/capi.c | 10 +++++----- drivers/isdn/capi/kcapi_proc.c | 10 +++++----- drivers/isdn/divert/isdn_divert.c | 10 +++++----- drivers/media/video/bttv-driver.c | 6 +++--- drivers/media/video/cx88/cx88-core.c | 5 ++--- drivers/media/video/cx88/cx88-dvb.c | 4 ++-- drivers/media/video/cx88/cx88-i2c.c | 4 ++-- drivers/media/video/cx88/cx88-vbi.c | 6 +++--- drivers/media/video/cx88/cx88-video.c | 12 ++++++------ drivers/media/video/cx88/cx88.h | 4 ---- drivers/media/video/saa7134/saa7134-dvb.c | 2 +- drivers/scsi/pas16.c | 6 +++--- drivers/serial/8250.c | 2 +- drivers/serial/jsm/jsm.h | 1 - drivers/serial/jsm/jsm_neo.c | 2 +- drivers/serial/jsm/jsm_tty.c | 4 +++- include/linux/sched.h | 1 - kernel/exit.c | 4 +++- 33 files changed, 67 insertions(+), 70 deletions(-) (limited to 'kernel') diff --git a/arch/i386/kernel/cpu/mtrr/generic.c b/arch/i386/kernel/cpu/mtrr/generic.c index 9f7a7ea6388..f468a979e9a 100644 --- a/arch/i386/kernel/cpu/mtrr/generic.c +++ b/arch/i386/kernel/cpu/mtrr/generic.c @@ -124,8 +124,8 @@ int generic_get_free_region(unsigned long base, unsigned long size) return -ENOSPC; } -void generic_get_mtrr(unsigned int reg, unsigned long *base, - unsigned int *size, mtrr_type * type) +static void generic_get_mtrr(unsigned int reg, unsigned long *base, + unsigned int *size, mtrr_type * type) { unsigned int mask_lo, mask_hi, base_lo, base_hi; diff --git a/arch/x86_64/kernel/early_printk.c b/arch/x86_64/kernel/early_printk.c index 750bcd0655d..e3a19e8ebbf 100644 --- a/arch/x86_64/kernel/early_printk.c +++ b/arch/x86_64/kernel/early_printk.c @@ -60,7 +60,7 @@ static struct console early_vga_console = { /* Serial functions loosely based on a similar package from Klaus P. Gerlicher */ -int early_serial_base = 0x3f8; /* ttyS0 */ +static int early_serial_base = 0x3f8; /* ttyS0 */ #define XMTRDY 0x20 diff --git a/drivers/char/agp/ali-agp.c b/drivers/char/agp/ali-agp.c index c86a22c5499..0212febda65 100644 --- a/drivers/char/agp/ali-agp.c +++ b/drivers/char/agp/ali-agp.c @@ -192,7 +192,7 @@ static struct aper_size_info_32 ali_generic_sizes[7] = {4, 1024, 0, 3} }; -struct agp_bridge_driver ali_generic_bridge = { +static struct agp_bridge_driver ali_generic_bridge = { .owner = THIS_MODULE, .aperture_sizes = ali_generic_sizes, .size_type = U32_APER_SIZE, @@ -215,7 +215,7 @@ struct agp_bridge_driver ali_generic_bridge = { .agp_destroy_page = ali_destroy_page, }; -struct agp_bridge_driver ali_m1541_bridge = { +static struct agp_bridge_driver ali_m1541_bridge = { .owner = THIS_MODULE, .aperture_sizes = ali_generic_sizes, .size_type = U32_APER_SIZE, diff --git a/drivers/char/agp/amd-k7-agp.c b/drivers/char/agp/amd-k7-agp.c index f1ea87ea6b6..e62a3c2c44a 100644 --- a/drivers/char/agp/amd-k7-agp.c +++ b/drivers/char/agp/amd-k7-agp.c @@ -358,7 +358,7 @@ static struct gatt_mask amd_irongate_masks[] = {.mask = 1, .type = 0} }; -struct agp_bridge_driver amd_irongate_driver = { +static struct agp_bridge_driver amd_irongate_driver = { .owner = THIS_MODULE, .aperture_sizes = amd_irongate_sizes, .size_type = LVL2_APER_SIZE, diff --git a/drivers/char/agp/amd64-agp.c b/drivers/char/agp/amd64-agp.c index 905f0629c44..399c042f68f 100644 --- a/drivers/char/agp/amd64-agp.c +++ b/drivers/char/agp/amd64-agp.c @@ -243,7 +243,7 @@ static void amd64_cleanup(void) } -struct agp_bridge_driver amd_8151_driver = { +static struct agp_bridge_driver amd_8151_driver = { .owner = THIS_MODULE, .aperture_sizes = amd_8151_sizes, .size_type = U32_APER_SIZE, diff --git a/drivers/char/agp/ati-agp.c b/drivers/char/agp/ati-agp.c index 757dde006fc..a65f8827c28 100644 --- a/drivers/char/agp/ati-agp.c +++ b/drivers/char/agp/ati-agp.c @@ -393,7 +393,7 @@ static int ati_free_gatt_table(struct agp_bridge_data *bridge) return 0; } -struct agp_bridge_driver ati_generic_bridge = { +static struct agp_bridge_driver ati_generic_bridge = { .owner = THIS_MODULE, .aperture_sizes = ati_generic_sizes, .size_type = LVL2_APER_SIZE, diff --git a/drivers/char/agp/backend.c b/drivers/char/agp/backend.c index c3442f3c648..2f3dfb63bdc 100644 --- a/drivers/char/agp/backend.c +++ b/drivers/char/agp/backend.c @@ -97,7 +97,7 @@ void agp_backend_release(struct agp_bridge_data *bridge) EXPORT_SYMBOL(agp_backend_release); -struct { int mem, agp; } maxes_table[] = { +static struct { int mem, agp; } maxes_table[] = { {0, 0}, {32, 4}, {64, 28}, @@ -322,7 +322,7 @@ static int __init agp_init(void) return 0; } -void __exit agp_exit(void) +static void __exit agp_exit(void) { } diff --git a/drivers/char/agp/efficeon-agp.c b/drivers/char/agp/efficeon-agp.c index 2a87cecdc91..1383c3165ea 100644 --- a/drivers/char/agp/efficeon-agp.c +++ b/drivers/char/agp/efficeon-agp.c @@ -303,7 +303,7 @@ static int efficeon_remove_memory(struct agp_memory * mem, off_t pg_start, int t } -struct agp_bridge_driver efficeon_driver = { +static struct agp_bridge_driver efficeon_driver = { .owner = THIS_MODULE, .aperture_sizes = efficeon_generic_sizes, .size_type = LVL2_APER_SIZE, diff --git a/drivers/char/agp/frontend.c b/drivers/char/agp/frontend.c index f633623ac80..3dfb6648547 100644 --- a/drivers/char/agp/frontend.c +++ b/drivers/char/agp/frontend.c @@ -235,7 +235,7 @@ static void agp_insert_into_pool(struct agp_memory * temp) /* File private list routines */ -struct agp_file_private *agp_find_private(pid_t pid) +static struct agp_file_private *agp_find_private(pid_t pid) { struct agp_file_private *curr; @@ -250,7 +250,7 @@ struct agp_file_private *agp_find_private(pid_t pid) return NULL; } -void agp_insert_file_private(struct agp_file_private * priv) +static void agp_insert_file_private(struct agp_file_private * priv) { struct agp_file_private *prev; @@ -262,7 +262,7 @@ void agp_insert_file_private(struct agp_file_private * priv) agp_fe.file_priv_list = priv; } -void agp_remove_file_private(struct agp_file_private * priv) +static void agp_remove_file_private(struct agp_file_private * priv) { struct agp_file_private *next; struct agp_file_private *prev; diff --git a/drivers/char/agp/nvidia-agp.c b/drivers/char/agp/nvidia-agp.c index 4f7a3e8bc91..80dafa3030b 100644 --- a/drivers/char/agp/nvidia-agp.c +++ b/drivers/char/agp/nvidia-agp.c @@ -288,7 +288,7 @@ static struct gatt_mask nvidia_generic_masks[] = }; -struct agp_bridge_driver nvidia_driver = { +static struct agp_bridge_driver nvidia_driver = { .owner = THIS_MODULE, .aperture_sizes = nvidia_generic_sizes, .size_type = U8_APER_SIZE, diff --git a/drivers/char/agp/sis-agp.c b/drivers/char/agp/sis-agp.c index cfccacb2a64..ebc05554045 100644 --- a/drivers/char/agp/sis-agp.c +++ b/drivers/char/agp/sis-agp.c @@ -119,7 +119,7 @@ static struct aper_size_info_8 sis_generic_sizes[7] = {4, 1024, 0, 3} }; -struct agp_bridge_driver sis_driver = { +static struct agp_bridge_driver sis_driver = { .owner = THIS_MODULE, .aperture_sizes = sis_generic_sizes, .size_type = U8_APER_SIZE, diff --git a/drivers/char/agp/sworks-agp.c b/drivers/char/agp/sworks-agp.c index bb338d9134e..10c23302dd8 100644 --- a/drivers/char/agp/sworks-agp.c +++ b/drivers/char/agp/sworks-agp.c @@ -409,7 +409,7 @@ static void serverworks_agp_enable(struct agp_bridge_data *bridge, u32 mode) agp_device_command(command, 0); } -struct agp_bridge_driver sworks_driver = { +static struct agp_bridge_driver sworks_driver = { .owner = THIS_MODULE, .aperture_sizes = serverworks_sizes, .size_type = LVL2_APER_SIZE, diff --git a/drivers/char/agp/via-agp.c b/drivers/char/agp/via-agp.c index e1451dd9b6a..c847df575cf 100644 --- a/drivers/char/agp/via-agp.c +++ b/drivers/char/agp/via-agp.c @@ -170,7 +170,7 @@ static void via_tlbflush_agp3(struct agp_memory *mem) } -struct agp_bridge_driver via_agp3_driver = { +static struct agp_bridge_driver via_agp3_driver = { .owner = THIS_MODULE, .aperture_sizes = agp3_generic_sizes, .size_type = U8_APER_SIZE, @@ -193,7 +193,7 @@ struct agp_bridge_driver via_agp3_driver = { .agp_destroy_page = agp_generic_destroy_page, }; -struct agp_bridge_driver via_driver = { +static struct agp_bridge_driver via_driver = { .owner = THIS_MODULE, .aperture_sizes = via_generic_sizes, .size_type = U8_APER_SIZE, diff --git a/drivers/char/rio/rio_linux.c b/drivers/char/rio/rio_linux.c index a91ae271cf0..763893e289b 100644 --- a/drivers/char/rio/rio_linux.c +++ b/drivers/char/rio/rio_linux.c @@ -221,7 +221,7 @@ static int rio_probe_addrs[]= {0xc0000, 0xd0000, 0xe0000}; /* Set the mask to all-ones. This alas, only supports 32 interrupts. Some architectures may need more. -- Changed to LONG to support up to 64 bits on 64bit architectures. -- REW 20/06/99 */ -long rio_irqmask = -1; +static long rio_irqmask = -1; MODULE_AUTHOR("Rogier Wolff , Patrick van de Lageweg "); MODULE_DESCRIPTION("RIO driver"); diff --git a/drivers/char/stallion.c b/drivers/char/stallion.c index de166608c59..b8899f560b5 100644 --- a/drivers/char/stallion.c +++ b/drivers/char/stallion.c @@ -466,7 +466,7 @@ static int stl_parsebrd(stlconf_t *confp, char **argp); static unsigned long stl_atol(char *str); -int stl_init(void); +static int stl_init(void); static int stl_open(struct tty_struct *tty, struct file *filp); static void stl_close(struct tty_struct *tty, struct file *filp); static int stl_write(struct tty_struct *tty, const unsigned char *buf, int count); @@ -3063,7 +3063,7 @@ static struct tty_operations stl_ops = { /*****************************************************************************/ -int __init stl_init(void) +static int __init stl_init(void) { int i; printk(KERN_INFO "%s: version %s\n", stl_drvtitle, stl_drvversion); diff --git a/drivers/isdn/capi/capi.c b/drivers/isdn/capi/capi.c index 06163538bb2..12dee8e9fbb 100644 --- a/drivers/isdn/capi/capi.c +++ b/drivers/isdn/capi/capi.c @@ -60,12 +60,12 @@ MODULE_LICENSE("GPL"); static struct class_simple *capi_class; -int capi_major = 68; /* allocated */ +static int capi_major = 68; /* allocated */ #ifdef CONFIG_ISDN_CAPI_MIDDLEWARE #define CAPINC_NR_PORTS 32 #define CAPINC_MAX_PORTS 256 -int capi_ttymajor = 191; -int capi_ttyminors = CAPINC_NR_PORTS; +static int capi_ttymajor = 191; +static int capi_ttyminors = CAPINC_NR_PORTS; #endif /* CONFIG_ISDN_CAPI_MIDDLEWARE */ module_param_named(major, capi_major, uint, 0); @@ -268,7 +268,7 @@ static void capiminor_free(struct capiminor *mp) kfree(mp); } -struct capiminor *capiminor_find(unsigned int minor) +static struct capiminor *capiminor_find(unsigned int minor) { struct list_head *l; struct capiminor *p = NULL; @@ -1166,7 +1166,7 @@ static int capinc_tty_write_room(struct tty_struct *tty) return room; } -int capinc_tty_chars_in_buffer(struct tty_struct *tty) +static int capinc_tty_chars_in_buffer(struct tty_struct *tty) { struct capiminor *mp = (struct capiminor *)tty->driver_data; if (!mp || !mp->nccip) { diff --git a/drivers/isdn/capi/kcapi_proc.c b/drivers/isdn/capi/kcapi_proc.c index 16dc5418ff4..2cc8b27e4c3 100644 --- a/drivers/isdn/capi/kcapi_proc.c +++ b/drivers/isdn/capi/kcapi_proc.c @@ -89,14 +89,14 @@ static int contrstats_show(struct seq_file *seq, void *v) return 0; } -struct seq_operations seq_controller_ops = { +static struct seq_operations seq_controller_ops = { .start = controller_start, .next = controller_next, .stop = controller_stop, .show = controller_show, }; -struct seq_operations seq_contrstats_ops = { +static struct seq_operations seq_contrstats_ops = { .start = controller_start, .next = controller_next, .stop = controller_stop, @@ -192,14 +192,14 @@ applstats_show(struct seq_file *seq, void *v) return 0; } -struct seq_operations seq_applications_ops = { +static struct seq_operations seq_applications_ops = { .start = applications_start, .next = applications_next, .stop = applications_stop, .show = applications_show, }; -struct seq_operations seq_applstats_ops = { +static struct seq_operations seq_applstats_ops = { .start = applications_start, .next = applications_next, .stop = applications_stop, @@ -287,7 +287,7 @@ static int capi_driver_show(struct seq_file *seq, void *v) return 0; } -struct seq_operations seq_capi_driver_ops = { +static struct seq_operations seq_capi_driver_ops = { .start = capi_driver_start, .next = capi_driver_next, .stop = capi_driver_stop, diff --git a/drivers/isdn/divert/isdn_divert.c b/drivers/isdn/divert/isdn_divert.c index 1eb112213f0..0bfd698726a 100644 --- a/drivers/isdn/divert/isdn_divert.c +++ b/drivers/isdn/divert/isdn_divert.c @@ -383,7 +383,7 @@ divert_rule *getruleptr(int idx) /*************************************************/ /* called from common module on an incoming call */ /*************************************************/ -int isdn_divert_icall(isdn_ctrl *ic) +static int isdn_divert_icall(isdn_ctrl *ic) { int retval = 0; unsigned long flags; struct call_struc *cs = NULL; @@ -552,7 +552,7 @@ void deleteprocs(void) /****************************************************/ /* put a address including address type into buffer */ /****************************************************/ -int put_address(char *st, u_char *p, int len) +static int put_address(char *st, u_char *p, int len) { u_char retval = 0; u_char adr_typ = 0; /* network standard */ @@ -595,7 +595,7 @@ int put_address(char *st, u_char *p, int len) /*************************************/ /* report a succesfull interrogation */ /*************************************/ -int interrogate_success(isdn_ctrl *ic, struct call_struc *cs) +static int interrogate_success(isdn_ctrl *ic, struct call_struc *cs) { char *src = ic->parm.dss1_io.data; int restlen = ic->parm.dss1_io.datalen; int cnt = 1; @@ -689,7 +689,7 @@ int interrogate_success(isdn_ctrl *ic, struct call_struc *cs) /*********************************************/ /* callback for protocol specific extensions */ /*********************************************/ -int prot_stat_callback(isdn_ctrl *ic) +static int prot_stat_callback(isdn_ctrl *ic) { struct call_struc *cs, *cs1; int i; unsigned long flags; @@ -781,7 +781,7 @@ int prot_stat_callback(isdn_ctrl *ic) /***************************/ /* status callback from HL */ /***************************/ -int isdn_divert_stat_callback(isdn_ctrl *ic) +static int isdn_divert_stat_callback(isdn_ctrl *ic) { struct call_struc *cs, *cs1; unsigned long flags; int retval; diff --git a/drivers/media/video/bttv-driver.c b/drivers/media/video/bttv-driver.c index c13f222fe6b..033cc5498f2 100644 --- a/drivers/media/video/bttv-driver.c +++ b/drivers/media/video/bttv-driver.c @@ -3169,7 +3169,7 @@ static struct video_device radio_template = /* ----------------------------------------------------------------------- */ /* some debug code */ -int bttv_risc_decode(u32 risc) +static int bttv_risc_decode(u32 risc) { static char *instr[16] = { [ BT848_RISC_WRITE >> 28 ] = "write", @@ -3206,8 +3206,8 @@ int bttv_risc_decode(u32 risc) return incr[risc >> 28] ? incr[risc >> 28] : 1; } -void bttv_risc_disasm(struct bttv *btv, - struct btcx_riscmem *risc) +static void bttv_risc_disasm(struct bttv *btv, + struct btcx_riscmem *risc) { unsigned int i,j,n; diff --git a/drivers/media/video/cx88/cx88-core.c b/drivers/media/video/cx88/cx88-core.c index 26a6138015c..1ff79b5a883 100644 --- a/drivers/media/video/cx88/cx88-core.c +++ b/drivers/media/video/cx88/cx88-core.c @@ -429,7 +429,7 @@ int cx88_sram_channel_setup(struct cx88_core *core, /* ------------------------------------------------------------------ */ /* debug helper code */ -int cx88_risc_decode(u32 risc) +static int cx88_risc_decode(u32 risc) { static char *instr[16] = { [ RISC_SYNC >> 28 ] = "sync", @@ -542,7 +542,7 @@ void cx88_sram_channel_dump(struct cx88_core *core, core->name,cx_read(ch->cnt2_reg)); } -char *cx88_pci_irqs[32] = { +static char *cx88_pci_irqs[32] = { "vid", "aud", "ts", "vip", "hst", "5", "6", "tm1", "src_dma", "dst_dma", "risc_rd_err", "risc_wr_err", "brdg_err", "src_dma_err", "dst_dma_err", "ipb_dma_err", @@ -1206,7 +1206,6 @@ void cx88_core_put(struct cx88_core *core, struct pci_dev *pci) /* ------------------------------------------------------------------ */ EXPORT_SYMBOL(cx88_print_ioctl); -EXPORT_SYMBOL(cx88_pci_irqs); EXPORT_SYMBOL(cx88_vid_irqs); EXPORT_SYMBOL(cx88_mpeg_irqs); EXPORT_SYMBOL(cx88_print_irqbits); diff --git a/drivers/media/video/cx88/cx88-dvb.c b/drivers/media/video/cx88/cx88-dvb.c index 1ca37315066..9d15d3d5a2b 100644 --- a/drivers/media/video/cx88/cx88-dvb.c +++ b/drivers/media/video/cx88/cx88-dvb.c @@ -91,7 +91,7 @@ static void dvb_buf_release(struct videobuf_queue *q, struct videobuf_buffer *vb cx88_free_buffer(dev->pci, (struct cx88_buffer*)vb); } -struct videobuf_queue_ops dvb_qops = { +static struct videobuf_queue_ops dvb_qops = { .buf_setup = dvb_buf_setup, .buf_prepare = dvb_buf_prepare, .buf_queue = dvb_buf_queue, @@ -191,7 +191,7 @@ static int or51132_set_ts_param(struct dvb_frontend* fe, return 0; } -struct or51132_config pchdtv_hd3000 = { +static struct or51132_config pchdtv_hd3000 = { .demod_address = 0x15, .pll_address = 0x61, .pll_desc = &dvb_pll_thomson_dtt7610, diff --git a/drivers/media/video/cx88/cx88-i2c.c b/drivers/media/video/cx88/cx88-i2c.c index 60800172c02..0725b1288f4 100644 --- a/drivers/media/video/cx88/cx88-i2c.c +++ b/drivers/media/video/cx88/cx88-i2c.c @@ -45,7 +45,7 @@ MODULE_PARM_DESC(i2c_scan,"scan i2c bus at insmod time"); /* ----------------------------------------------------------------------- */ -void cx8800_bit_setscl(void *data, int state) +static void cx8800_bit_setscl(void *data, int state) { struct cx88_core *core = data; @@ -57,7 +57,7 @@ void cx8800_bit_setscl(void *data, int state) cx_read(MO_I2C); } -void cx8800_bit_setsda(void *data, int state) +static void cx8800_bit_setsda(void *data, int state) { struct cx88_core *core = data; diff --git a/drivers/media/video/cx88/cx88-vbi.c b/drivers/media/video/cx88/cx88-vbi.c index 471e508b074..0584ff47638 100644 --- a/drivers/media/video/cx88/cx88-vbi.c +++ b/drivers/media/video/cx88/cx88-vbi.c @@ -46,9 +46,9 @@ void cx8800_vbi_fmt(struct cx8800_dev *dev, struct v4l2_format *f) } } -int cx8800_start_vbi_dma(struct cx8800_dev *dev, - struct cx88_dmaqueue *q, - struct cx88_buffer *buf) +static int cx8800_start_vbi_dma(struct cx8800_dev *dev, + struct cx88_dmaqueue *q, + struct cx88_buffer *buf) { struct cx88_core *core = dev->core; diff --git a/drivers/media/video/cx88/cx88-video.c b/drivers/media/video/cx88/cx88-video.c index 701f594e181..d1f5c92f0ce 100644 --- a/drivers/media/video/cx88/cx88-video.c +++ b/drivers/media/video/cx88/cx88-video.c @@ -325,7 +325,7 @@ static struct cx88_ctrl cx8800_ctls[] = { .shift = 0, } }; -const int CX8800_CTLS = ARRAY_SIZE(cx8800_ctls); +static const int CX8800_CTLS = ARRAY_SIZE(cx8800_ctls); /* ------------------------------------------------------------------- */ /* resource management */ @@ -665,7 +665,7 @@ static void buffer_release(struct videobuf_queue *q, struct videobuf_buffer *vb) cx88_free_buffer(fh->dev->pci,buf); } -struct videobuf_queue_ops cx8800_video_qops = { +static struct videobuf_queue_ops cx8800_video_qops = { .buf_setup = buffer_setup, .buf_prepare = buffer_prepare, .buf_queue = buffer_queue, @@ -1924,7 +1924,7 @@ static struct file_operations video_fops = .llseek = no_llseek, }; -struct video_device cx8800_video_template = +static struct video_device cx8800_video_template = { .name = "cx8800-video", .type = VID_TYPE_CAPTURE|VID_TYPE_TUNER|VID_TYPE_SCALES, @@ -1933,7 +1933,7 @@ struct video_device cx8800_video_template = .minor = -1, }; -struct video_device cx8800_vbi_template = +static struct video_device cx8800_vbi_template = { .name = "cx8800-vbi", .type = VID_TYPE_TELETEXT|VID_TYPE_TUNER, @@ -1951,7 +1951,7 @@ static struct file_operations radio_fops = .llseek = no_llseek, }; -struct video_device cx8800_radio_template = +static struct video_device cx8800_radio_template = { .name = "cx8800-radio", .type = VID_TYPE_TUNER, @@ -2226,7 +2226,7 @@ static int cx8800_resume(struct pci_dev *pci_dev) /* ----------------------------------------------------------- */ -struct pci_device_id cx8800_pci_tbl[] = { +static struct pci_device_id cx8800_pci_tbl[] = { { .vendor = 0x14f1, .device = 0x8800, diff --git a/drivers/media/video/cx88/cx88.h b/drivers/media/video/cx88/cx88.h index b351d9eae61..88eaaaba5ad 100644 --- a/drivers/media/video/cx88/cx88.h +++ b/drivers/media/video/cx88/cx88.h @@ -420,7 +420,6 @@ struct cx8802_dev { /* ----------------------------------------------------------- */ /* cx88-core.c */ -extern char *cx88_pci_irqs[32]; extern char *cx88_vid_irqs[32]; extern char *cx88_mpeg_irqs[32]; extern void cx88_print_irqbits(char *name, char *tag, char **strings, @@ -472,9 +471,6 @@ extern void cx88_core_put(struct cx88_core *core, /* cx88-vbi.c */ void cx8800_vbi_fmt(struct cx8800_dev *dev, struct v4l2_format *f); -int cx8800_start_vbi_dma(struct cx8800_dev *dev, - struct cx88_dmaqueue *q, - struct cx88_buffer *buf); int cx8800_stop_vbi_dma(struct cx8800_dev *dev); int cx8800_restart_vbi_queue(struct cx8800_dev *dev, struct cx88_dmaqueue *q); diff --git a/drivers/media/video/saa7134/saa7134-dvb.c b/drivers/media/video/saa7134/saa7134-dvb.c index dd4a6c8ee65..c2873ae029f 100644 --- a/drivers/media/video/saa7134/saa7134-dvb.c +++ b/drivers/media/video/saa7134/saa7134-dvb.c @@ -172,7 +172,7 @@ static int fe_request_firmware(struct dvb_frontend* fe, return request_firmware(fw, name, &dev->pci->dev); } -struct tda1004x_config medion_cardbus = { +static struct tda1004x_config medion_cardbus = { .demod_address = 0x08, /* not sure this is correct */ .invert = 0, .invert_oclk = 0, diff --git a/drivers/scsi/pas16.c b/drivers/scsi/pas16.c index e70dedb0d0a..7976947c032 100644 --- a/drivers/scsi/pas16.c +++ b/drivers/scsi/pas16.c @@ -137,7 +137,7 @@ static unsigned short pas16_addr = 0; static int pas16_irq = 0; -int scsi_irq_translate[] = +static const int scsi_irq_translate[] = { 0, 0, 1, 2, 3, 4, 5, 6, 0, 0, 7, 8, 9, 0, 10, 11 }; /* The default_irqs array contains values used to set the irq into the @@ -145,7 +145,7 @@ int scsi_irq_translate[] = * irq jumpers on the board). The first value in the array will be * assigned to logical board 0, the next to board 1, etc. */ -int default_irqs[] __initdata = +static int default_irqs[] __initdata = { PAS16_DEFAULT_BOARD_1_IRQ, PAS16_DEFAULT_BOARD_2_IRQ, PAS16_DEFAULT_BOARD_3_IRQ, @@ -177,7 +177,7 @@ static struct base { #define NO_BASES (sizeof (bases) / sizeof (struct base)) -unsigned short pas16_offset[ 8 ] = +static const unsigned short pas16_offset[ 8 ] = { 0x1c00, /* OUTPUT_DATA_REG */ 0x1c01, /* INITIATOR_COMMAND_REG */ diff --git a/drivers/serial/8250.c b/drivers/serial/8250.c index 218b69372c0..0d9358608fd 100644 --- a/drivers/serial/8250.c +++ b/drivers/serial/8250.c @@ -51,7 +51,7 @@ * share_irqs - whether we pass SA_SHIRQ to request_irq(). This option * is unsafe when used on edge-triggered interrupts. */ -unsigned int share_irqs = SERIAL8250_SHARE_IRQS; +static unsigned int share_irqs = SERIAL8250_SHARE_IRQS; /* * Debugging. diff --git a/drivers/serial/jsm/jsm.h b/drivers/serial/jsm/jsm.h index e0717611c94..777829fa330 100644 --- a/drivers/serial/jsm/jsm.h +++ b/drivers/serial/jsm/jsm.h @@ -393,7 +393,6 @@ int jsm_tty_init(struct jsm_board *); int jsm_uart_port_init(struct jsm_board *); int jsm_remove_uart_port(struct jsm_board *); void jsm_input(struct jsm_channel *ch); -void jsm_carrier(struct jsm_channel *ch); void jsm_check_queue_flow_control(struct jsm_channel *ch); #endif diff --git a/drivers/serial/jsm/jsm_neo.c b/drivers/serial/jsm/jsm_neo.c index 9b79c1ff6c7..3a11a69feb4 100644 --- a/drivers/serial/jsm/jsm_neo.c +++ b/drivers/serial/jsm/jsm_neo.c @@ -688,7 +688,7 @@ static void neo_flush_uart_read(struct jsm_channel *ch) /* * No locks are assumed to be held when calling this function. */ -void neo_clear_break(struct jsm_channel *ch, int force) +static void neo_clear_break(struct jsm_channel *ch, int force) { unsigned long lock_flags; diff --git a/drivers/serial/jsm/jsm_tty.c b/drivers/serial/jsm/jsm_tty.c index 24fe76c2883..98de2258fd0 100644 --- a/drivers/serial/jsm/jsm_tty.c +++ b/drivers/serial/jsm/jsm_tty.c @@ -31,6 +31,8 @@ #include "jsm.h" +static void jsm_carrier(struct jsm_channel *ch); + static inline int jsm_get_mstat(struct jsm_channel *ch) { unsigned char mstat; @@ -755,7 +757,7 @@ void jsm_input(struct jsm_channel *ch) jsm_printk(IOCTL, INFO, &ch->ch_bd->pci_dev, "finish\n"); } -void jsm_carrier(struct jsm_channel *ch) +static void jsm_carrier(struct jsm_channel *ch) { struct jsm_board *bd; diff --git a/include/linux/sched.h b/include/linux/sched.h index 8960f99ea12..5f868a58858 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -1012,7 +1012,6 @@ extern int copy_thread(int, unsigned long, unsigned long, unsigned long, struct extern void flush_thread(void); extern void exit_thread(void); -extern void exit_mm(struct task_struct *); extern void exit_files(struct task_struct *); extern void exit_signal(struct task_struct *); extern void __exit_signal(struct task_struct *); diff --git a/kernel/exit.c b/kernel/exit.c index 419d9d3c4c4..7be283d9898 100644 --- a/kernel/exit.c +++ b/kernel/exit.c @@ -39,6 +39,8 @@ extern struct task_struct *child_reaper; int getrusage(struct task_struct *, int, struct rusage __user *); +static void exit_mm(struct task_struct * tsk); + static void __unhash_process(struct task_struct *p) { nr_threads--; @@ -474,7 +476,7 @@ EXPORT_SYMBOL_GPL(exit_fs); * Turn us into a lazy TLB process if we * aren't already.. */ -void exit_mm(struct task_struct * tsk) +static void exit_mm(struct task_struct * tsk) { struct mm_struct *mm = tsk->mm; -- cgit v1.2.3-70-g09d2