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-rw-r--r--arch/s390/Kconfig28
-rw-r--r--arch/s390/appldata/appldata_base.c4
-rw-r--r--arch/s390/include/asm/bug.h2
-rw-r--r--arch/s390/include/asm/spinlock.h29
-rw-r--r--arch/s390/kernel/compat_linux.c53
-rw-r--r--arch/s390/kernel/compat_linux.h2
-rw-r--r--arch/s390/kernel/compat_wrapper.S6
-rw-r--r--arch/s390/kernel/debug.c13
-rw-r--r--arch/s390/kernel/early.c9
-rw-r--r--arch/s390/kernel/entry.S8
-rw-r--r--arch/s390/kernel/entry64.S8
-rw-r--r--arch/s390/kernel/ftrace.c67
-rw-r--r--arch/s390/mm/cmm.c11
13 files changed, 61 insertions, 179 deletions
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index 43c0acad716..16c673096a2 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -95,6 +95,34 @@ config S390
select HAVE_ARCH_TRACEHOOK
select INIT_ALL_POSSIBLE
select HAVE_PERF_EVENTS
+ select ARCH_INLINE_SPIN_TRYLOCK
+ select ARCH_INLINE_SPIN_TRYLOCK_BH
+ select ARCH_INLINE_SPIN_LOCK
+ select ARCH_INLINE_SPIN_LOCK_BH
+ select ARCH_INLINE_SPIN_LOCK_IRQ
+ select ARCH_INLINE_SPIN_LOCK_IRQSAVE
+ select ARCH_INLINE_SPIN_UNLOCK
+ select ARCH_INLINE_SPIN_UNLOCK_BH
+ select ARCH_INLINE_SPIN_UNLOCK_IRQ
+ select ARCH_INLINE_SPIN_UNLOCK_IRQRESTORE
+ select ARCH_INLINE_READ_TRYLOCK
+ select ARCH_INLINE_READ_LOCK
+ select ARCH_INLINE_READ_LOCK_BH
+ select ARCH_INLINE_READ_LOCK_IRQ
+ select ARCH_INLINE_READ_LOCK_IRQSAVE
+ select ARCH_INLINE_READ_UNLOCK
+ select ARCH_INLINE_READ_UNLOCK_BH
+ select ARCH_INLINE_READ_UNLOCK_IRQ
+ select ARCH_INLINE_READ_UNLOCK_IRQRESTORE
+ select ARCH_INLINE_WRITE_TRYLOCK
+ select ARCH_INLINE_WRITE_LOCK
+ select ARCH_INLINE_WRITE_LOCK_BH
+ select ARCH_INLINE_WRITE_LOCK_IRQ
+ select ARCH_INLINE_WRITE_LOCK_IRQSAVE
+ select ARCH_INLINE_WRITE_UNLOCK
+ select ARCH_INLINE_WRITE_UNLOCK_BH
+ select ARCH_INLINE_WRITE_UNLOCK_IRQ
+ select ARCH_INLINE_WRITE_UNLOCK_IRQRESTORE
config SCHED_OMIT_FRAME_POINTER
bool
diff --git a/arch/s390/appldata/appldata_base.c b/arch/s390/appldata/appldata_base.c
index b55fd7ed1c3..495589950dc 100644
--- a/arch/s390/appldata/appldata_base.c
+++ b/arch/s390/appldata/appldata_base.c
@@ -61,12 +61,12 @@ static struct ctl_table appldata_table[] = {
{
.procname = "timer",
.mode = S_IRUGO | S_IWUSR,
- .proc_handler = &appldata_timer_handler,
+ .proc_handler = appldata_timer_handler,
},
{
.procname = "interval",
.mode = S_IRUGO | S_IWUSR,
- .proc_handler = &appldata_interval_handler,
+ .proc_handler = appldata_interval_handler,
},
{ },
};
diff --git a/arch/s390/include/asm/bug.h b/arch/s390/include/asm/bug.h
index 7efd0abe888..efb74fd5156 100644
--- a/arch/s390/include/asm/bug.h
+++ b/arch/s390/include/asm/bug.h
@@ -49,7 +49,7 @@
#define BUG() do { \
__EMIT_BUG(0); \
- for (;;); \
+ unreachable(); \
} while (0)
#define WARN_ON(x) ({ \
diff --git a/arch/s390/include/asm/spinlock.h b/arch/s390/include/asm/spinlock.h
index 41ce6861174..c9af0d19c7a 100644
--- a/arch/s390/include/asm/spinlock.h
+++ b/arch/s390/include/asm/spinlock.h
@@ -191,33 +191,4 @@ static inline int __raw_write_trylock(raw_rwlock_t *rw)
#define _raw_read_relax(lock) cpu_relax()
#define _raw_write_relax(lock) cpu_relax()
-#define __always_inline__spin_lock
-#define __always_inline__read_lock
-#define __always_inline__write_lock
-#define __always_inline__spin_lock_bh
-#define __always_inline__read_lock_bh
-#define __always_inline__write_lock_bh
-#define __always_inline__spin_lock_irq
-#define __always_inline__read_lock_irq
-#define __always_inline__write_lock_irq
-#define __always_inline__spin_lock_irqsave
-#define __always_inline__read_lock_irqsave
-#define __always_inline__write_lock_irqsave
-#define __always_inline__spin_trylock
-#define __always_inline__read_trylock
-#define __always_inline__write_trylock
-#define __always_inline__spin_trylock_bh
-#define __always_inline__spin_unlock
-#define __always_inline__read_unlock
-#define __always_inline__write_unlock
-#define __always_inline__spin_unlock_bh
-#define __always_inline__read_unlock_bh
-#define __always_inline__write_unlock_bh
-#define __always_inline__spin_unlock_irq
-#define __always_inline__read_unlock_irq
-#define __always_inline__write_unlock_irq
-#define __always_inline__spin_unlock_irqrestore
-#define __always_inline__read_unlock_irqrestore
-#define __always_inline__write_unlock_irqrestore
-
#endif /* __ASM_SPINLOCK_H */
diff --git a/arch/s390/kernel/compat_linux.c b/arch/s390/kernel/compat_linux.c
index 0debcec23a3..fda1a8123f9 100644
--- a/arch/s390/kernel/compat_linux.c
+++ b/arch/s390/kernel/compat_linux.c
@@ -527,59 +527,6 @@ asmlinkage long sys32_sendfile64(int out_fd, int in_fd,
return ret;
}
-#ifdef CONFIG_SYSCTL_SYSCALL
-struct __sysctl_args32 {
- u32 name;
- int nlen;
- u32 oldval;
- u32 oldlenp;
- u32 newval;
- u32 newlen;
- u32 __unused[4];
-};
-
-asmlinkage long sys32_sysctl(struct __sysctl_args32 __user *args)
-{
- struct __sysctl_args32 tmp;
- int error;
- size_t oldlen;
- size_t __user *oldlenp = NULL;
- unsigned long addr = (((unsigned long)&args->__unused[0]) + 7) & ~7;
-
- if (copy_from_user(&tmp, args, sizeof(tmp)))
- return -EFAULT;
-
- if (tmp.oldval && tmp.oldlenp) {
- /* Duh, this is ugly and might not work if sysctl_args
- is in read-only memory, but do_sysctl does indirectly
- a lot of uaccess in both directions and we'd have to
- basically copy the whole sysctl.c here, and
- glibc's __sysctl uses rw memory for the structure
- anyway. */
- if (get_user(oldlen, (u32 __user *)compat_ptr(tmp.oldlenp)) ||
- put_user(oldlen, (size_t __user *)addr))
- return -EFAULT;
- oldlenp = (size_t __user *)addr;
- }
-
- lock_kernel();
- error = do_sysctl(compat_ptr(tmp.name), tmp.nlen, compat_ptr(tmp.oldval),
- oldlenp, compat_ptr(tmp.newval), tmp.newlen);
- unlock_kernel();
- if (oldlenp) {
- if (!error) {
- if (get_user(oldlen, (size_t __user *)addr) ||
- put_user(oldlen, (u32 __user *)compat_ptr(tmp.oldlenp)))
- error = -EFAULT;
- }
- if (copy_to_user(args->__unused, tmp.__unused,
- sizeof(tmp.__unused)))
- error = -EFAULT;
- }
- return error;
-}
-#endif
-
struct stat64_emu31 {
unsigned long long st_dev;
unsigned int __pad1;
diff --git a/arch/s390/kernel/compat_linux.h b/arch/s390/kernel/compat_linux.h
index c07f9ca05ad..45e9092b3aa 100644
--- a/arch/s390/kernel/compat_linux.h
+++ b/arch/s390/kernel/compat_linux.h
@@ -162,7 +162,6 @@ struct ucontext32 {
compat_sigset_t uc_sigmask; /* mask last for extensibility */
};
-struct __sysctl_args32;
struct stat64_emu31;
struct mmap_arg_struct_emu31;
struct fadvise64_64_args;
@@ -212,7 +211,6 @@ long sys32_sendfile(int out_fd, int in_fd, compat_off_t __user *offset,
size_t count);
long sys32_sendfile64(int out_fd, int in_fd, compat_loff_t __user *offset,
s32 count);
-long sys32_sysctl(struct __sysctl_args32 __user *args);
long sys32_stat64(char __user * filename, struct stat64_emu31 __user * statbuf);
long sys32_lstat64(char __user * filename,
struct stat64_emu31 __user * statbuf);
diff --git a/arch/s390/kernel/compat_wrapper.S b/arch/s390/kernel/compat_wrapper.S
index cbd9901dc0f..30de2d0e52b 100644
--- a/arch/s390/kernel/compat_wrapper.S
+++ b/arch/s390/kernel/compat_wrapper.S
@@ -689,8 +689,6 @@ sys32_fdatasync_wrapper:
llgfr %r2,%r2 # unsigned int
jg sys_fdatasync # branch to system call
-#sys32_sysctl_wrapper # tbd
-
.globl sys32_mlock_wrapper
sys32_mlock_wrapper:
llgfr %r2,%r2 # unsigned long
@@ -1087,8 +1085,8 @@ sys32_stime_wrapper:
.globl sys32_sysctl_wrapper
sys32_sysctl_wrapper:
- llgtr %r2,%r2 # struct __sysctl_args32 *
- jg sys32_sysctl
+ llgtr %r2,%r2 # struct compat_sysctl_args *
+ jg compat_sys_sysctl
.globl sys32_fstat64_wrapper
sys32_fstat64_wrapper:
diff --git a/arch/s390/kernel/debug.c b/arch/s390/kernel/debug.c
index 20f282c911c..071c81f179e 100644
--- a/arch/s390/kernel/debug.c
+++ b/arch/s390/kernel/debug.c
@@ -893,35 +893,30 @@ s390dbf_procactive(ctl_table *table, int write,
static struct ctl_table s390dbf_table[] = {
{
- .ctl_name = CTL_S390DBF_STOPPABLE,
.procname = "debug_stoppable",
.data = &debug_stoppable,
.maxlen = sizeof(int),
.mode = S_IRUGO | S_IWUSR,
- .proc_handler = &proc_dointvec,
- .strategy = &sysctl_intvec,
+ .proc_handler = proc_dointvec,
},
{
- .ctl_name = CTL_S390DBF_ACTIVE,
.procname = "debug_active",
.data = &debug_active,
.maxlen = sizeof(int),
.mode = S_IRUGO | S_IWUSR,
- .proc_handler = &s390dbf_procactive,
- .strategy = &sysctl_intvec,
+ .proc_handler = s390dbf_procactive,
},
- { .ctl_name = 0 }
+ { }
};
static struct ctl_table s390dbf_dir_table[] = {
{
- .ctl_name = CTL_S390DBF,
.procname = "s390dbf",
.maxlen = 0,
.mode = S_IRUGO | S_IXUGO,
.child = s390dbf_table,
},
- { .ctl_name = 0 }
+ { }
};
static struct ctl_table_header *s390dbf_sysctl_header;
diff --git a/arch/s390/kernel/early.c b/arch/s390/kernel/early.c
index bf8b4ae7ff2..e49e9e0c69f 100644
--- a/arch/s390/kernel/early.c
+++ b/arch/s390/kernel/early.c
@@ -55,6 +55,7 @@ static void __init reset_tod_clock(void)
disabled_wait(0);
sched_clock_base_cc = TOD_UNIX_EPOCH;
+ S390_lowcore.last_update_clock = sched_clock_base_cc;
}
#ifdef CONFIG_SHARED_KERNEL
@@ -167,6 +168,14 @@ static noinline __init void create_kernel_nss(void)
return;
}
+ /* re-initialize cputime accounting. */
+ sched_clock_base_cc = get_clock();
+ S390_lowcore.last_update_clock = sched_clock_base_cc;
+ S390_lowcore.last_update_timer = 0x7fffffffffffffffULL;
+ S390_lowcore.user_timer = 0;
+ S390_lowcore.system_timer = 0;
+ asm volatile("SPT 0(%0)" : : "a" (&S390_lowcore.last_update_timer));
+
/* re-setup boot command line with new ipl vm parms */
ipl_update_parameters();
setup_boot_command_line();
diff --git a/arch/s390/kernel/entry.S b/arch/s390/kernel/entry.S
index f43d2ee5446..48215d15762 100644
--- a/arch/s390/kernel/entry.S
+++ b/arch/s390/kernel/entry.S
@@ -565,10 +565,10 @@ pgm_svcper:
lh %r7,0x8a # get svc number from lowcore
l %r9,__LC_THREAD_INFO # load pointer to thread_info struct
TRACE_IRQS_OFF
- l %r1,__TI_task(%r9)
- mvc __THREAD_per+__PER_atmid(2,%r1),__LC_PER_ATMID
- mvc __THREAD_per+__PER_address(4,%r1),__LC_PER_ADDRESS
- mvc __THREAD_per+__PER_access_id(1,%r1),__LC_PER_ACCESS_ID
+ l %r8,__TI_task(%r9)
+ mvc __THREAD_per+__PER_atmid(2,%r8),__LC_PER_ATMID
+ mvc __THREAD_per+__PER_address(4,%r8),__LC_PER_ADDRESS
+ mvc __THREAD_per+__PER_access_id(1,%r8),__LC_PER_ACCESS_ID
oi __TI_flags+3(%r9),_TIF_SINGLE_STEP # set TIF_SINGLE_STEP
TRACE_IRQS_ON
stosm __SF_EMPTY(%r15),0x03 # reenable interrupts
diff --git a/arch/s390/kernel/entry64.S b/arch/s390/kernel/entry64.S
index a6f7b20df61..9aff1d449b6 100644
--- a/arch/s390/kernel/entry64.S
+++ b/arch/s390/kernel/entry64.S
@@ -543,10 +543,10 @@ pgm_svcper:
mvc __LC_LAST_UPDATE_TIMER(8),__LC_SYNC_ENTER_TIMER
llgh %r7,__LC_SVC_INT_CODE # get svc number from lowcore
lg %r9,__LC_THREAD_INFO # load pointer to thread_info struct
- lg %r1,__TI_task(%r9)
- mvc __THREAD_per+__PER_atmid(2,%r1),__LC_PER_ATMID
- mvc __THREAD_per+__PER_address(8,%r1),__LC_PER_ADDRESS
- mvc __THREAD_per+__PER_access_id(1,%r1),__LC_PER_ACCESS_ID
+ lg %r8,__TI_task(%r9)
+ mvc __THREAD_per+__PER_atmid(2,%r8),__LC_PER_ATMID
+ mvc __THREAD_per+__PER_address(8,%r8),__LC_PER_ADDRESS
+ mvc __THREAD_per+__PER_access_id(1,%r8),__LC_PER_ACCESS_ID
oi __TI_flags+7(%r9),_TIF_SINGLE_STEP # set TIF_SINGLE_STEP
TRACE_IRQS_ON
stosm __SF_EMPTY(%r15),0x03 # reenable interrupts
diff --git a/arch/s390/kernel/ftrace.c b/arch/s390/kernel/ftrace.c
index f5fe34dd821..5a82bc68193 100644
--- a/arch/s390/kernel/ftrace.c
+++ b/arch/s390/kernel/ftrace.c
@@ -203,73 +203,10 @@ out:
#ifdef CONFIG_FTRACE_SYSCALLS
-extern unsigned long __start_syscalls_metadata[];
-extern unsigned long __stop_syscalls_metadata[];
extern unsigned int sys_call_table[];
-static struct syscall_metadata **syscalls_metadata;
-
-struct syscall_metadata *syscall_nr_to_meta(int nr)
-{
- if (!syscalls_metadata || nr >= NR_syscalls || nr < 0)
- return NULL;
-
- return syscalls_metadata[nr];
-}
-
-int syscall_name_to_nr(char *name)
-{
- int i;
-
- if (!syscalls_metadata)
- return -1;
- for (i = 0; i < NR_syscalls; i++)
- if (syscalls_metadata[i])
- if (!strcmp(syscalls_metadata[i]->name, name))
- return i;
- return -1;
-}
-
-void set_syscall_enter_id(int num, int id)
-{
- syscalls_metadata[num]->enter_id = id;
-}
-
-void set_syscall_exit_id(int num, int id)
+unsigned long __init arch_syscall_addr(int nr)
{
- syscalls_metadata[num]->exit_id = id;
-}
-
-static struct syscall_metadata *find_syscall_meta(unsigned long syscall)
-{
- struct syscall_metadata *start;
- struct syscall_metadata *stop;
- char str[KSYM_SYMBOL_LEN];
-
- start = (struct syscall_metadata *)__start_syscalls_metadata;
- stop = (struct syscall_metadata *)__stop_syscalls_metadata;
- kallsyms_lookup(syscall, NULL, NULL, NULL, str);
-
- for ( ; start < stop; start++) {
- if (start->name && !strcmp(start->name + 3, str + 3))
- return start;
- }
- return NULL;
-}
-
-static int __init arch_init_ftrace_syscalls(void)
-{
- struct syscall_metadata *meta;
- int i;
- syscalls_metadata = kzalloc(sizeof(*syscalls_metadata) * NR_syscalls,
- GFP_KERNEL);
- if (!syscalls_metadata)
- return -ENOMEM;
- for (i = 0; i < NR_syscalls; i++) {
- meta = find_syscall_meta((unsigned long)sys_call_table[i]);
- syscalls_metadata[i] = meta;
- }
- return 0;
+ return (unsigned long)sys_call_table[nr];
}
-arch_initcall(arch_init_ftrace_syscalls);
#endif
diff --git a/arch/s390/mm/cmm.c b/arch/s390/mm/cmm.c
index b201135cc18..ff58779bf7e 100644
--- a/arch/s390/mm/cmm.c
+++ b/arch/s390/mm/cmm.c
@@ -343,30 +343,29 @@ static struct ctl_table cmm_table[] = {
{
.procname = "cmm_pages",
.mode = 0644,
- .proc_handler = &cmm_pages_handler,
+ .proc_handler = cmm_pages_handler,
},
{
.procname = "cmm_timed_pages",
.mode = 0644,
- .proc_handler = &cmm_pages_handler,
+ .proc_handler = cmm_pages_handler,
},
{
.procname = "cmm_timeout",
.mode = 0644,
- .proc_handler = &cmm_timeout_handler,
+ .proc_handler = cmm_timeout_handler,
},
- { .ctl_name = 0 }
+ { }
};
static struct ctl_table cmm_dir_table[] = {
{
- .ctl_name = CTL_VM,
.procname = "vm",
.maxlen = 0,
.mode = 0555,
.child = cmm_table,
},
- { .ctl_name = 0 }
+ { }
};
#endif
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-29 08:33:24 +0000