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-rw-r--r--fs/proc/Makefile13
-rw-r--r--fs/proc/array.c8
-rw-r--r--fs/proc/base.c4
-rw-r--r--fs/proc/cmdline.c29
-rw-r--r--fs/proc/cpuinfo.c24
-rw-r--r--fs/proc/devices.c70
-rw-r--r--fs/proc/generic.c3
-rw-r--r--fs/proc/inode.c3
-rw-r--r--fs/proc/internal.h3
-rw-r--r--fs/proc/interrupts.c53
-rw-r--r--fs/proc/kcore.c14
-rw-r--r--fs/proc/kmsg.c12
-rw-r--r--fs/proc/loadavg.c51
-rw-r--r--fs/proc/meminfo.c168
-rw-r--r--fs/proc/page.c147
-rw-r--r--fs/proc/proc_devtree.c3
-rw-r--r--fs/proc/proc_misc.c914
-rw-r--r--fs/proc/proc_sysctl.c15
-rw-r--r--fs/proc/root.c8
-rw-r--r--fs/proc/stat.c153
-rw-r--r--fs/proc/task_mmu.c25
-rw-r--r--fs/proc/uptime.c43
-rw-r--r--fs/proc/version.c34
-rw-r--r--fs/proc/vmcore.c11
24 files changed, 851 insertions, 957 deletions
diff --git a/fs/proc/Makefile b/fs/proc/Makefile
index ebaba021354..63d965193b2 100644
--- a/fs/proc/Makefile
+++ b/fs/proc/Makefile
@@ -8,11 +8,20 @@ proc-y := nommu.o task_nommu.o
proc-$(CONFIG_MMU) := mmu.o task_mmu.o
proc-y += inode.o root.o base.o generic.o array.o \
- proc_tty.o proc_misc.o
-
+ proc_tty.o
+proc-y += cmdline.o
+proc-y += cpuinfo.o
+proc-y += devices.o
+proc-y += interrupts.o
+proc-y += loadavg.o
+proc-y += meminfo.o
+proc-y += stat.o
+proc-y += uptime.o
+proc-y += version.o
proc-$(CONFIG_PROC_SYSCTL) += proc_sysctl.o
proc-$(CONFIG_NET) += proc_net.o
proc-$(CONFIG_PROC_KCORE) += kcore.o
proc-$(CONFIG_PROC_VMCORE) += vmcore.o
proc-$(CONFIG_PROC_DEVICETREE) += proc_devtree.o
proc-$(CONFIG_PRINTK) += kmsg.o
+proc-$(CONFIG_PROC_PAGE_MONITOR) += page.o
diff --git a/fs/proc/array.c b/fs/proc/array.c
index f4bc0e78953..bb9f4b05703 100644
--- a/fs/proc/array.c
+++ b/fs/proc/array.c
@@ -388,20 +388,20 @@ static int do_task_stat(struct seq_file *m, struct pid_namespace *ns,
/* add up live thread stats at the group level */
if (whole) {
+ struct task_cputime cputime;
struct task_struct *t = task;
do {
min_flt += t->min_flt;
maj_flt += t->maj_flt;
- utime = cputime_add(utime, task_utime(t));
- stime = cputime_add(stime, task_stime(t));
gtime = cputime_add(gtime, task_gtime(t));
t = next_thread(t);
} while (t != task);
min_flt += sig->min_flt;
maj_flt += sig->maj_flt;
- utime = cputime_add(utime, sig->utime);
- stime = cputime_add(stime, sig->stime);
+ thread_group_cputime(task, &cputime);
+ utime = cputime.utime;
+ stime = cputime.stime;
gtime = cputime_add(gtime, sig->gtime);
}
diff --git a/fs/proc/base.c b/fs/proc/base.c
index b5918ae8ca7..486cf3fe713 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -1712,9 +1712,9 @@ static struct dentry *proc_fd_instantiate(struct inode *dir,
file = fcheck_files(files, fd);
if (!file)
goto out_unlock;
- if (file->f_mode & 1)
+ if (file->f_mode & FMODE_READ)
inode->i_mode |= S_IRUSR | S_IXUSR;
- if (file->f_mode & 2)
+ if (file->f_mode & FMODE_WRITE)
inode->i_mode |= S_IWUSR | S_IXUSR;
spin_unlock(&files->file_lock);
put_files_struct(files);
diff --git a/fs/proc/cmdline.c b/fs/proc/cmdline.c
new file mode 100644
index 00000000000..82676e3fcd1
--- /dev/null
+++ b/fs/proc/cmdline.c
@@ -0,0 +1,29 @@
+#include <linux/fs.h>
+#include <linux/init.h>
+#include <linux/proc_fs.h>
+#include <linux/seq_file.h>
+
+static int cmdline_proc_show(struct seq_file *m, void *v)
+{
+ seq_printf(m, "%s\n", saved_command_line);
+ return 0;
+}
+
+static int cmdline_proc_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, cmdline_proc_show, NULL);
+}
+
+static const struct file_operations cmdline_proc_fops = {
+ .open = cmdline_proc_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+static int __init proc_cmdline_init(void)
+{
+ proc_create("cmdline", 0, NULL, &cmdline_proc_fops);
+ return 0;
+}
+module_init(proc_cmdline_init);
diff --git a/fs/proc/cpuinfo.c b/fs/proc/cpuinfo.c
new file mode 100644
index 00000000000..5a1e539a234
--- /dev/null
+++ b/fs/proc/cpuinfo.c
@@ -0,0 +1,24 @@
+#include <linux/fs.h>
+#include <linux/init.h>
+#include <linux/proc_fs.h>
+#include <linux/seq_file.h>
+
+extern const struct seq_operations cpuinfo_op;
+static int cpuinfo_open(struct inode *inode, struct file *file)
+{
+ return seq_open(file, &cpuinfo_op);
+}
+
+static const struct file_operations proc_cpuinfo_operations = {
+ .open = cpuinfo_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = seq_release,
+};
+
+static int __init proc_cpuinfo_init(void)
+{
+ proc_create("cpuinfo", 0, NULL, &proc_cpuinfo_operations);
+ return 0;
+}
+module_init(proc_cpuinfo_init);
diff --git a/fs/proc/devices.c b/fs/proc/devices.c
new file mode 100644
index 00000000000..59ee7da959c
--- /dev/null
+++ b/fs/proc/devices.c
@@ -0,0 +1,70 @@
+#include <linux/fs.h>
+#include <linux/init.h>
+#include <linux/proc_fs.h>
+#include <linux/seq_file.h>
+
+static int devinfo_show(struct seq_file *f, void *v)
+{
+ int i = *(loff_t *) v;
+
+ if (i < CHRDEV_MAJOR_HASH_SIZE) {
+ if (i == 0)
+ seq_printf(f, "Character devices:\n");
+ chrdev_show(f, i);
+ }
+#ifdef CONFIG_BLOCK
+ else {
+ i -= CHRDEV_MAJOR_HASH_SIZE;
+ if (i == 0)
+ seq_printf(f, "\nBlock devices:\n");
+ blkdev_show(f, i);
+ }
+#endif
+ return 0;
+}
+
+static void *devinfo_start(struct seq_file *f, loff_t *pos)
+{
+ if (*pos < (BLKDEV_MAJOR_HASH_SIZE + CHRDEV_MAJOR_HASH_SIZE))
+ return pos;
+ return NULL;
+}
+
+static void *devinfo_next(struct seq_file *f, void *v, loff_t *pos)
+{
+ (*pos)++;
+ if (*pos >= (BLKDEV_MAJOR_HASH_SIZE + CHRDEV_MAJOR_HASH_SIZE))
+ return NULL;
+ return pos;
+}
+
+static void devinfo_stop(struct seq_file *f, void *v)
+{
+ /* Nothing to do */
+}
+
+static const struct seq_operations devinfo_ops = {
+ .start = devinfo_start,
+ .next = devinfo_next,
+ .stop = devinfo_stop,
+ .show = devinfo_show
+};
+
+static int devinfo_open(struct inode *inode, struct file *filp)
+{
+ return seq_open(filp, &devinfo_ops);
+}
+
+static const struct file_operations proc_devinfo_operations = {
+ .open = devinfo_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = seq_release,
+};
+
+static int __init proc_devices_init(void)
+{
+ proc_create("devices", 0, NULL, &proc_devinfo_operations);
+ return 0;
+}
+module_init(proc_devices_init);
diff --git a/fs/proc/generic.c b/fs/proc/generic.c
index 7821589a17d..60a359b3558 100644
--- a/fs/proc/generic.c
+++ b/fs/proc/generic.c
@@ -547,9 +547,8 @@ static int proc_register(struct proc_dir_entry * dir, struct proc_dir_entry * dp
for (tmp = dir->subdir; tmp; tmp = tmp->next)
if (strcmp(tmp->name, dp->name) == 0) {
- printk(KERN_WARNING "proc_dir_entry '%s/%s' already registered\n",
+ WARN(1, KERN_WARNING "proc_dir_entry '%s/%s' already registered\n",
dir->name, dp->name);
- dump_stack();
break;
}
diff --git a/fs/proc/inode.c b/fs/proc/inode.c
index c6b4fa7e3b4..2543fd00c65 100644
--- a/fs/proc/inode.c
+++ b/fs/proc/inode.c
@@ -106,14 +106,13 @@ static void init_once(void *foo)
inode_init_once(&ei->vfs_inode);
}
-int __init proc_init_inodecache(void)
+void __init proc_init_inodecache(void)
{
proc_inode_cachep = kmem_cache_create("proc_inode_cache",
sizeof(struct proc_inode),
0, (SLAB_RECLAIM_ACCOUNT|
SLAB_MEM_SPREAD|SLAB_PANIC),
init_once);
- return 0;
}
static const struct super_operations proc_sops = {
diff --git a/fs/proc/internal.h b/fs/proc/internal.h
index 3bfb7b8747b..3e8aeb8b61c 100644
--- a/fs/proc/internal.h
+++ b/fs/proc/internal.h
@@ -61,12 +61,11 @@ extern const struct file_operations proc_smaps_operations;
extern const struct file_operations proc_clear_refs_operations;
extern const struct file_operations proc_pagemap_operations;
extern const struct file_operations proc_net_operations;
-extern const struct file_operations proc_kmsg_operations;
extern const struct inode_operations proc_net_inode_operations;
void free_proc_entry(struct proc_dir_entry *de);
-int proc_init_inodecache(void);
+void proc_init_inodecache(void);
static inline struct pid *proc_pid(struct inode *inode)
{
diff --git a/fs/proc/interrupts.c b/fs/proc/interrupts.c
new file mode 100644
index 00000000000..05029c0e2f2
--- /dev/null
+++ b/fs/proc/interrupts.c
@@ -0,0 +1,53 @@
+#include <linux/fs.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/irqnr.h>
+#include <linux/proc_fs.h>
+#include <linux/seq_file.h>
+
+/*
+ * /proc/interrupts
+ */
+static void *int_seq_start(struct seq_file *f, loff_t *pos)
+{
+ return (*pos <= nr_irqs) ? pos : NULL;
+}
+
+static void *int_seq_next(struct seq_file *f, void *v, loff_t *pos)
+{
+ (*pos)++;
+ if (*pos > nr_irqs)
+ return NULL;
+ return pos;
+}
+
+static void int_seq_stop(struct seq_file *f, void *v)
+{
+ /* Nothing to do */
+}
+
+static const struct seq_operations int_seq_ops = {
+ .start = int_seq_start,
+ .next = int_seq_next,
+ .stop = int_seq_stop,
+ .show = show_interrupts
+};
+
+static int interrupts_open(struct inode *inode, struct file *filp)
+{
+ return seq_open(filp, &int_seq_ops);
+}
+
+static const struct file_operations proc_interrupts_operations = {
+ .open = interrupts_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = seq_release,
+};
+
+static int __init proc_interrupts_init(void)
+{
+ proc_create("interrupts", 0, NULL, &proc_interrupts_operations);
+ return 0;
+}
+module_init(proc_interrupts_init);
diff --git a/fs/proc/kcore.c b/fs/proc/kcore.c
index c2370c76fb7..59b43a06887 100644
--- a/fs/proc/kcore.c
+++ b/fs/proc/kcore.c
@@ -27,6 +27,8 @@
#define ELF_CORE_EFLAGS 0
#endif
+static struct proc_dir_entry *proc_root_kcore;
+
static int open_kcore(struct inode * inode, struct file * filp)
{
return capable(CAP_SYS_RAWIO) ? 0 : -EPERM;
@@ -34,7 +36,7 @@ static int open_kcore(struct inode * inode, struct file * filp)
static ssize_t read_kcore(struct file *, char __user *, size_t, loff_t *);
-const struct file_operations proc_kcore_operations = {
+static const struct file_operations proc_kcore_operations = {
.read = read_kcore,
.open = open_kcore,
};
@@ -399,3 +401,13 @@ read_kcore(struct file *file, char __user *buffer, size_t buflen, loff_t *fpos)
return acc;
}
+
+static int __init proc_kcore_init(void)
+{
+ proc_root_kcore = proc_create("kcore", S_IRUSR, NULL, &proc_kcore_operations);
+ if (proc_root_kcore)
+ proc_root_kcore->size =
+ (size_t)high_memory - PAGE_OFFSET + PAGE_SIZE;
+ return 0;
+}
+module_init(proc_kcore_init);
diff --git a/fs/proc/kmsg.c b/fs/proc/kmsg.c
index 9fd5df3f40c..7ca78346d3f 100644
--- a/fs/proc/kmsg.c
+++ b/fs/proc/kmsg.c
@@ -10,13 +10,12 @@
#include <linux/time.h>
#include <linux/kernel.h>
#include <linux/poll.h>
+#include <linux/proc_fs.h>
#include <linux/fs.h>
#include <asm/uaccess.h>
#include <asm/io.h>
-#include "internal.h"
-
extern wait_queue_head_t log_wait;
extern int do_syslog(int type, char __user *bug, int count);
@@ -49,9 +48,16 @@ static unsigned int kmsg_poll(struct file *file, poll_table *wait)
}
-const struct file_operations proc_kmsg_operations = {
+static const struct file_operations proc_kmsg_operations = {
.read = kmsg_read,
.poll = kmsg_poll,
.open = kmsg_open,
.release = kmsg_release,
};
+
+static int __init proc_kmsg_init(void)
+{
+ proc_create("kmsg", S_IRUSR, NULL, &proc_kmsg_operations);
+ return 0;
+}
+module_init(proc_kmsg_init);
diff --git a/fs/proc/loadavg.c b/fs/proc/loadavg.c
new file mode 100644
index 00000000000..9bca39cf99e
--- /dev/null
+++ b/fs/proc/loadavg.c
@@ -0,0 +1,51 @@
+#include <linux/fs.h>
+#include <linux/init.h>
+#include <linux/pid_namespace.h>
+#include <linux/proc_fs.h>
+#include <linux/sched.h>
+#include <linux/seq_file.h>
+#include <linux/seqlock.h>
+#include <linux/time.h>
+
+#define LOAD_INT(x) ((x) >> FSHIFT)
+#define LOAD_FRAC(x) LOAD_INT(((x) & (FIXED_1-1)) * 100)
+
+static int loadavg_proc_show(struct seq_file *m, void *v)
+{
+ int a, b, c;
+ unsigned long seq;
+
+ do {
+ seq = read_seqbegin(&xtime_lock);
+ a = avenrun[0] + (FIXED_1/200);
+ b = avenrun[1] + (FIXED_1/200);
+ c = avenrun[2] + (FIXED_1/200);
+ } while (read_seqretry(&xtime_lock, seq));
+
+ seq_printf(m, "%d.%02d %d.%02d %d.%02d %ld/%d %d\n",
+ LOAD_INT(a), LOAD_FRAC(a),
+ LOAD_INT(b), LOAD_FRAC(b),
+ LOAD_INT(c), LOAD_FRAC(c),
+ nr_running(), nr_threads,
+ task_active_pid_ns(current)->last_pid);
+ return 0;
+}
+
+static int loadavg_proc_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, loadavg_proc_show, NULL);
+}
+
+static const struct file_operations loadavg_proc_fops = {
+ .open = loadavg_proc_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+static int __init proc_loadavg_init(void)
+{
+ proc_create("loadavg", 0, NULL, &loadavg_proc_fops);
+ return 0;
+}
+module_init(proc_loadavg_init);
diff --git a/fs/proc/meminfo.c b/fs/proc/meminfo.c
new file mode 100644
index 00000000000..b1675c4e66d
--- /dev/null
+++ b/fs/proc/meminfo.c
@@ -0,0 +1,168 @@
+#include <linux/fs.h>
+#include <linux/hugetlb.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/mm.h>
+#include <linux/mman.h>
+#include <linux/mmzone.h>
+#include <linux/proc_fs.h>
+#include <linux/quicklist.h>
+#include <linux/seq_file.h>
+#include <linux/swap.h>
+#include <linux/vmstat.h>
+#include <asm/atomic.h>
+#include <asm/page.h>
+#include <asm/pgtable.h>
+#include "internal.h"
+
+void __attribute__((weak)) arch_report_meminfo(struct seq_file *m)
+{
+}
+
+static int meminfo_proc_show(struct seq_file *m, void *v)
+{
+ struct sysinfo i;
+ unsigned long committed;
+ unsigned long allowed;
+ struct vmalloc_info vmi;
+ long cached;
+ unsigned long pages[NR_LRU_LISTS];
+ int lru;
+
+/*
+ * display in kilobytes.
+ */
+#define K(x) ((x) << (PAGE_SHIFT - 10))
+ si_meminfo(&i);
+ si_swapinfo(&i);
+ committed = atomic_long_read(&vm_committed_space);
+ allowed = ((totalram_pages - hugetlb_total_pages())
+ * sysctl_overcommit_ratio / 100) + total_swap_pages;
+
+ cached = global_page_state(NR_FILE_PAGES) -
+ total_swapcache_pages - i.bufferram;
+ if (cached < 0)
+ cached = 0;
+
+ get_vmalloc_info(&vmi);
+
+ for (lru = LRU_BASE; lru < NR_LRU_LISTS; lru++)
+ pages[lru] = global_page_state(NR_LRU_BASE + lru);
+
+ /*
+ * Tagged format, for easy grepping and expansion.
+ */
+ seq_printf(m,
+ "MemTotal: %8lu kB\n"
+ "MemFree: %8lu kB\n"
+ "Buffers: %8lu kB\n"
+ "Cached: %8lu kB\n"
+ "SwapCached: %8lu kB\n"
+ "Active: %8lu kB\n"
+ "Inactive: %8lu kB\n"
+ "Active(anon): %8lu kB\n"
+ "Inactive(anon): %8lu kB\n"
+ "Active(file): %8lu kB\n"
+ "Inactive(file): %8lu kB\n"
+#ifdef CONFIG_UNEVICTABLE_LRU
+ "Unevictable: %8lu kB\n"
+ "Mlocked: %8lu kB\n"
+#endif
+#ifdef CONFIG_HIGHMEM
+ "HighTotal: %8lu kB\n"
+ "HighFree: %8lu kB\n"
+ "LowTotal: %8lu kB\n"
+ "LowFree: %8lu kB\n"
+#endif
+ "SwapTotal: %8lu kB\n"
+ "SwapFree: %8lu kB\n"
+ "Dirty: %8lu kB\n"
+ "Writeback: %8lu kB\n"
+ "AnonPages: %8lu kB\n"
+ "Mapped: %8lu kB\n"
+ "Slab: %8lu kB\n"
+ "SReclaimable: %8lu kB\n"
+ "SUnreclaim: %8lu kB\n"
+ "PageTables: %8lu kB\n"
+#ifdef CONFIG_QUICKLIST
+ "Quicklists: %8lu kB\n"
+#endif
+ "NFS_Unstable: %8lu kB\n"
+ "Bounce: %8lu kB\n"
+ "WritebackTmp: %8lu kB\n"
+ "CommitLimit: %8lu kB\n"
+ "Committed_AS: %8lu kB\n"
+ "VmallocTotal: %8lu kB\n"
+ "VmallocUsed: %8lu kB\n"
+ "VmallocChunk: %8lu kB\n",
+ K(i.totalram),
+ K(i.freeram),
+ K(i.bufferram),
+ K(cached),
+ K(total_swapcache_pages),
+ K(pages[LRU_ACTIVE_ANON] + pages[LRU_ACTIVE_FILE]),
+ K(pages[LRU_INACTIVE_ANON] + pages[LRU_INACTIVE_FILE]),
+ K(pages[LRU_ACTIVE_ANON]),
+ K(pages[LRU_INACTIVE_ANON]),
+ K(pages[LRU_ACTIVE_FILE]),
+ K(pages[LRU_INACTIVE_FILE]),
+#ifdef CONFIG_UNEVICTABLE_LRU
+ K(pages[LRU_UNEVICTABLE]),
+ K(global_page_state(NR_MLOCK)),
+#endif
+#ifdef CONFIG_HIGHMEM
+ K(i.totalhigh),
+ K(i.freehigh),
+ K(i.totalram-i.totalhigh),
+ K(i.freeram-i.freehigh),
+#endif
+ K(i.totalswap),
+ K(i.freeswap),
+ K(global_page_state(NR_FILE_DIRTY)),
+ K(global_page_state(NR_WRITEBACK)),
+ K(global_page_state(NR_ANON_PAGES)),
+ K(global_page_state(NR_FILE_MAPPED)),
+ K(global_page_state(NR_SLAB_RECLAIMABLE) +
+ global_page_state(NR_SLAB_UNRECLAIMABLE)),
+ K(global_page_state(NR_SLAB_RECLAIMABLE)),
+ K(global_page_state(NR_SLAB_UNRECLAIMABLE)),
+ K(global_page_state(NR_PAGETABLE)),
+#ifdef CONFIG_QUICKLIST
+ K(quicklist_total_size()),
+#endif
+ K(global_page_state(NR_UNSTABLE_NFS)),
+ K(global_page_state(NR_BOUNCE)),
+ K(global_page_state(NR_WRITEBACK_TEMP)),
+ K(allowed),
+ K(committed),
+ (unsigned long)VMALLOC_TOTAL >> 10,
+ vmi.used >> 10,
+ vmi.largest_chunk >> 10
+ );
+
+ hugetlb_report_meminfo(m);
+
+ arch_report_meminfo(m);
+
+ return 0;
+#undef K
+}
+
+static int meminfo_proc_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, meminfo_proc_show, NULL);
+}
+
+static const struct file_operations meminfo_proc_fops = {
+ .open = meminfo_proc_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+static int __init proc_meminfo_init(void)
+{
+ proc_create("meminfo", 0, NULL, &meminfo_proc_fops);
+ return 0;
+}
+module_init(proc_meminfo_init);
diff --git a/fs/proc/page.c b/fs/proc/page.c
new file mode 100644
index 00000000000..767d95a6d1b
--- /dev/null
+++ b/fs/proc/page.c
@@ -0,0 +1,147 @@
+#include <linux/bootmem.h>
+#include <linux/compiler.h>
+#include <linux/fs.h>
+#include <linux/init.h>
+#include <linux/mm.h>
+#include <linux/mmzone.h>
+#include <linux/proc_fs.h>
+#include <linux/seq_file.h>
+#include <asm/uaccess.h>
+#include "internal.h"
+
+#define KPMSIZE sizeof(u64)
+#define KPMMASK (KPMSIZE - 1)
+/* /proc/kpagecount - an array exposing page counts
+ *
+ * Each entry is a u64 representing the corresponding
+ * physical page count.
+ */
+static ssize_t kpagecount_read(struct file *file, char __user *buf,
+ size_t count, loff_t *ppos)
+{
+ u64 __user *out = (u64 __user *)buf;
+ struct page *ppage;
+ unsigned long src = *ppos;
+ unsigned long pfn;
+ ssize_t ret = 0;
+ u64 pcount;
+
+ pfn = src / KPMSIZE;
+ count = min_t(size_t, count, (max_pfn * KPMSIZE) - src);
+ if (src & KPMMASK || count & KPMMASK)
+ return -EINVAL;
+
+ while (count > 0) {
+ ppage = NULL;
+ if (pfn_valid(pfn))
+ ppage = pfn_to_page(pfn);
+ pfn++;
+ if (!ppage)
+ pcount = 0;
+ else
+ pcount = page_mapcount(ppage);
+
+ if (put_user(pcount, out++)) {
+ ret = -EFAULT;
+ break;
+ }
+
+ count -= KPMSIZE;
+ }
+
+ *ppos += (char __user *)out - buf;
+ if (!ret)
+ ret = (char __user *)out - buf;
+ return ret;
+}
+
+static const struct file_operations proc_kpagecount_operations = {
+ .llseek = mem_lseek,
+ .read = kpagecount_read,
+};
+
+/* /proc/kpageflags - an array exposing page flags
+ *
+ * Each entry is a u64 representing the corresponding
+ * physical page flags.
+ */
+
+/* These macros are used to decouple internal flags from exported ones */
+
+#define KPF_LOCKED 0
+#define KPF_ERROR 1
+#define KPF_REFERENCED 2
+#define KPF_UPTODATE 3
+#define KPF_DIRTY 4
+#define KPF_LRU 5
+#define KPF_ACTIVE 6
+#define KPF_SLAB 7
+#define KPF_WRITEBACK 8
+#define KPF_RECLAIM 9
+#define KPF_BUDDY 10
+
+#define kpf_copy_bit(flags, srcpos, dstpos) (((flags >> srcpos) & 1) << dstpos)
+
+static ssize_t kpageflags_read(struct file *file, char __user *buf,
+ size_t count, loff_t *ppos)
+{
+ u64 __user *out = (u64 __user *)buf;
+ struct page *ppage;
+ unsigned long src = *ppos;
+ unsigned long pfn;
+ ssize_t ret = 0;
+ u64 kflags, uflags;
+
+ pfn = src / KPMSIZE;
+ count = min_t(unsigned long, count, (max_pfn * KPMSIZE) - src);
+ if (src & KPMMASK || count & KPMMASK)
+ return -EINVAL;
+
+ while (count > 0) {
+ ppage = NULL;
+ if (pfn_valid(pfn))
+ ppage = pfn_to_page(pfn);
+ pfn++;
+ if (!ppage)
+ kflags = 0;
+ else
+ kflags = ppage->flags;
+
+ uflags = kpf_copy_bit(KPF_LOCKED, PG_locked, kflags) |
+ kpf_copy_bit(kflags, KPF_ERROR, PG_error) |
+ kpf_copy_bit(kflags, KPF_REFERENCED, PG_referenced) |
+ kpf_copy_bit(kflags, KPF_UPTODATE, PG_uptodate) |
+ kpf_copy_bit(kflags, KPF_DIRTY, PG_dirty) |
+ kpf_copy_bit(kflags, KPF_LRU, PG_lru) |
+ kpf_copy_bit(kflags, KPF_ACTIVE, PG_active) |
+ kpf_copy_bit(kflags, KPF_SLAB, PG_slab) |
+ kpf_copy_bit(kflags, KPF_WRITEBACK, PG_writeback) |
+ kpf_copy_bit(kflags, KPF_RECLAIM, PG_reclaim) |
+ kpf_copy_bit(kflags, KPF_BUDDY, PG_buddy);
+
+ if (put_user(uflags, out++)) {
+ ret = -EFAULT;
+ break;
+ }
+
+ count -= KPMSIZE;
+ }
+
+ *ppos += (char __user *)out - buf;
+ if (!ret)
+ ret = (char __user *)out - buf;
+ return ret;
+}
+
+static const struct file_operations proc_kpageflags_operations = {
+ .llseek = mem_lseek,
+ .read = kpageflags_read,
+};
+
+static int __init proc_page_init(void)
+{
+ proc_create("kpagecount", S_IRUSR, NULL, &proc_kpagecount_operations);
+ proc_create("kpageflags", S_IRUSR, NULL, &proc_kpageflags_operations);
+ return 0;
+}
+module_init(proc_page_init);
diff --git a/fs/proc/proc_devtree.c b/fs/proc/proc_devtree.c
index eca471bc851..d777789b7a8 100644
--- a/fs/proc/proc_devtree.c
+++ b/fs/proc/proc_devtree.c
@@ -4,6 +4,7 @@
* Copyright 1997 Paul Mackerras
*/
#include <linux/errno.h>
+#include <linux/init.h>
#include <linux/time.h>
#include <linux/proc_fs.h>
#include <linux/stat.h>
@@ -214,7 +215,7 @@ void proc_device_tree_add_node(struct device_node *np,
/*
* Called on initialization to set up the /proc/device-tree subtree
*/
-void proc_device_tree_init(void)
+void __init proc_device_tree_init(void)
{
struct device_node *root;
if ( !have_of )
diff --git a/fs/proc/proc_misc.c b/fs/proc/proc_misc.c
deleted file mode 100644
index 59ea42e1ef0..00000000000
--- a/fs/proc/proc_misc.c
+++ /dev/null
@@ -1,914 +0,0 @@
-/*
- * linux/fs/proc/proc_misc.c
- *
- * linux/fs/proc/array.c
- * Copyright (C) 1992 by Linus Torvalds
- * based on ideas by Darren Senn
- *
- * This used to be the part of array.c. See the rest of history and credits
- * there. I took this into a separate file and switched the thing to generic
- * proc_file_inode_operations, leaving in array.c only per-process stuff.
- * Inumbers allocation made dynamic (via create_proc_entry()). AV, May 1999.
- *
- * Changes:
- * Fulton Green : Encapsulated position metric calculations.
- * <kernel@FultonGreen.com>
- */
-
-#include <linux/types.h>
-#include <linux/errno.h>
-#include <linux/time.h>
-#include <linux/kernel.h>
-#include <linux/kernel_stat.h>
-#include <linux/fs.h>
-#include <linux/tty.h>
-#include <linux/string.h>
-#include <linux/mman.h>
-#include <linux/quicklist.h>
-#include <linux/proc_fs.h>
-#include <linux/ioport.h>
-#include <linux/mm.h>
-#include <linux/mmzone.h>
-#include <linux/pagemap.h>
-#include <linux/interrupt.h>
-#include <linux/swap.h>
-#include <linux/slab.h>
-#include <linux/genhd.h>
-#include <linux/smp.h>
-#include <linux/signal.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/seq_file.h>
-#include <linux/times.h>
-#include <linux/profile.h>
-#include <linux/utsname.h>
-#include <linux/blkdev.h>
-#include <linux/hugetlb.h>
-#include <linux/jiffies.h>
-#include <linux/vmalloc.h>
-#include <linux/crash_dump.h>
-#include <linux/pid_namespace.h>
-#include <linux/bootmem.h>
-#include <asm/uaccess.h>
-#include <asm/pgtable.h>
-#include <asm/io.h>
-#include <asm/tlb.h>
-#include <asm/div64.h>
-#include "internal.h"
-
-#define LOAD_INT(x) ((x) >> FSHIFT)
-#define LOAD_FRAC(x) LOAD_INT(((x) & (FIXED_1-1)) * 100)
-/*
- * Warning: stuff below (imported functions) assumes that its output will fit
- * into one page. For some of those functions it may be wrong. Moreover, we
- * have a way to deal with that gracefully. Right now I used straightforward
- * wrappers, but this needs further analysis wrt potential overflows.
- */
-extern int get_hardware_list(char *);
-extern int get_stram_list(char *);
-extern int get_exec_domain_list(char *);
-
-static int proc_calc_metrics(char *page, char **start, off_t off,
- int count, int *eof, int len)
-{
- if (len <= off+count) *eof = 1;
- *start = page + off;
- len -= off;
- if (len>count) len = count;
- if (len<0) len = 0;
- return len;
-}
-
-static int loadavg_read_proc(char *page, char **start, off_t off,
- int count, int *eof, void *data)
-{
- int a, b, c;
- int len;
- unsigned long seq;
-
- do {
- seq = read_seqbegin(&xtime_lock);
- a = avenrun[0] + (FIXED_1/200);
- b = avenrun[1] + (FIXED_1/200);
- c = avenrun[2] + (FIXED_1/200);
- } while (read_seqretry(&xtime_lock, seq));
-
- len = sprintf(page,"%d.%02d %d.%02d %d.%02d %ld/%d %d\n",
- LOAD_INT(a), LOAD_FRAC(a),
- LOAD_INT(b), LOAD_FRAC(b),
- LOAD_INT(c), LOAD_FRAC(c),
- nr_running(), nr_threads,
- task_active_pid_ns(current)->last_pid);
- return proc_calc_metrics(page, start, off, count, eof, len);
-}
-
-static int uptime_read_proc(char *page, char **start, off_t off,
- int count, int *eof, void *data)
-{
- struct timespec uptime;
- struct timespec idle;
- int len;
- cputime_t idletime = cputime_add(init_task.utime, init_task.stime);
-
- do_posix_clock_monotonic_gettime(&uptime);
- monotonic_to_bootbased(&uptime);
- cputime_to_timespec(idletime, &idle);
- len = sprintf(page,"%lu.%02lu %lu.%02lu\n",
- (unsigned long) uptime.tv_sec,
- (uptime.tv_nsec / (NSEC_PER_SEC / 100)),
- (unsigned long) idle.tv_sec,
- (idle.tv_nsec / (NSEC_PER_SEC / 100)));
-
- return proc_calc_metrics(page, start, off, count, eof, len);
-}
-
-int __attribute__((weak)) arch_report_meminfo(char *page)
-{
- return 0;
-}
-
-static int meminfo_read_proc(char *page, char **start, off_t off,
- int count, int *eof, void *data)
-{
- struct sysinfo i;
- int len;
- unsigned long committed;
- unsigned long allowed;
- struct vmalloc_info vmi;
- long cached;
-
-/*
- * display in kilobytes.
- */
-#define K(x) ((x) << (PAGE_SHIFT - 10))
- si_meminfo(&i);
- si_swapinfo(&i);
- committed = atomic_long_read(&vm_committed_space);
- allowed = ((totalram_pages - hugetlb_total_pages())
- * sysctl_overcommit_ratio / 100) + total_swap_pages;
-
- cached = global_page_state(NR_FILE_PAGES) -
- total_swapcache_pages - i.bufferram;
- if (cached < 0)
- cached = 0;
-
- get_vmalloc_info(&vmi);
-
- /*
- * Tagged format, for easy grepping and expansion.
- */
- len = sprintf(page,
- "MemTotal: %8lu kB\n"
- "MemFree: %8lu kB\n"
- "Buffers: %8lu kB\n"
- "Cached: %8lu kB\n"
- "SwapCached: %8lu kB\n"
- "Active: %8lu kB\n"
- "Inactive: %8lu kB\n"
-#ifdef CONFIG_HIGHMEM
- "HighTotal: %8lu kB\n"
- "HighFree: %8lu kB\n"
- "LowTotal: %8lu kB\n"
- "LowFree: %8lu kB\n"
-#endif
- "SwapTotal: %8lu kB\n"
- "SwapFree: %8lu kB\n"
- "Dirty: %8lu kB\n"
- "Writeback: %8lu kB\n"
- "AnonPages: %8lu kB\n"
- "Mapped: %8lu kB\n"
- "Slab: %8lu kB\n"
- "SReclaimable: %8lu kB\n"
- "SUnreclaim: %8lu kB\n"
- "PageTables: %8lu kB\n"
-#ifdef CONFIG_QUICKLIST
- "Quicklists: %8lu kB\n"
-#endif
- "NFS_Unstable: %8lu kB\n"
- "Bounce: %8lu kB\n"
- "WritebackTmp: %8lu kB\n"
- "CommitLimit: %8lu kB\n"
- "Committed_AS: %8lu kB\n"
- "VmallocTotal: %8lu kB\n"
- "VmallocUsed: %8lu kB\n"
- "VmallocChunk: %8lu kB\n",
- K(i.totalram),
- K(i.freeram),
- K(i.bufferram),
- K(cached),
- K(total_swapcache_pages),
- K(global_page_state(NR_ACTIVE)),
- K(global_page_state(NR_INACTIVE)),
-#ifdef CONFIG_HIGHMEM
- K(i.totalhigh),
- K(i.freehigh),
- K(i.totalram-i.totalhigh),
- K(i.freeram-i.freehigh),
-#endif
- K(i.totalswap),
- K(i.freeswap),
- K(global_page_state(NR_FILE_DIRTY)),
- K(global_page_state(NR_WRITEBACK)),
- K(global_page_state(NR_ANON_PAGES)),
- K(global_page_state(NR_FILE_MAPPED)),
- K(global_page_state(NR_SLAB_RECLAIMABLE) +
- global_page_state(NR_SLAB_UNRECLAIMABLE)),
- K(global_page_state(NR_SLAB_RECLAIMABLE)),
- K(global_page_state(NR_SLAB_UNRECLAIMABLE)),
- K(global_page_state(NR_PAGETABLE)),
-#ifdef CONFIG_QUICKLIST
- K(quicklist_total_size()),
-#endif
- K(global_page_state(NR_UNSTABLE_NFS)),
- K(global_page_state(NR_BOUNCE)),
- K(global_page_state(NR_WRITEBACK_TEMP)),
- K(allowed),
- K(committed),
- (unsigned long)VMALLOC_TOTAL >> 10,
- vmi.used >> 10,
- vmi.largest_chunk >> 10
- );
-
- len += hugetlb_report_meminfo(page + len);
-
- len += arch_report_meminfo(page + len);
-
- return proc_calc_metrics(page, start, off, count, eof, len);
-#undef K
-}
-
-static int fragmentation_open(struct inode *inode, struct file *file)
-{
- (void)inode;
- return seq_open(file, &fragmentation_op);
-}
-
-static const struct file_operations fragmentation_file_operations = {
- .open = fragmentation_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release,
-};
-
-static int pagetypeinfo_open(struct inode *inode, struct file *file)
-{
- return seq_open(file, &pagetypeinfo_op);
-}
-
-static const struct file_operations pagetypeinfo_file_ops = {
- .open = pagetypeinfo_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release,
-};
-
-static int zoneinfo_open(struct inode *inode, struct file *file)
-{
- return seq_open(file, &zoneinfo_op);
-}
-
-static const struct file_operations proc_zoneinfo_file_operations = {
- .open = zoneinfo_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release,
-};
-
-static int version_read_proc(char *page, char **start, off_t off,
- int count, int *eof, void *data)
-{
- int len;
-
- len = snprintf(page, PAGE_SIZE, linux_proc_banner,
- utsname()->sysname,
- utsname()->release,
- utsname()->version);
- return proc_calc_metrics(page, start, off, count, eof, len);
-}
-
-extern const struct seq_operations cpuinfo_op;
-static int cpuinfo_open(struct inode *inode, struct file *file)
-{
- return seq_open(file, &cpuinfo_op);
-}
-
-static const struct file_operations proc_cpuinfo_operations = {
- .open = cpuinfo_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release,
-};
-
-static int devinfo_show(struct seq_file *f, void *v)
-{
- int i = *(loff_t *) v;
-
- if (i < CHRDEV_MAJOR_HASH_SIZE) {
- if (i == 0)
- seq_printf(f, "Character devices:\n");
- chrdev_show(f, i);
- }
-#ifdef CONFIG_BLOCK
- else {
- i -= CHRDEV_MAJOR_HASH_SIZE;
- if (i == 0)
- seq_printf(f, "\nBlock devices:\n");
- blkdev_show(f, i);
- }
-#endif
- return 0;
-}
-
-static void *devinfo_start(struct seq_file *f, loff_t *pos)
-{
- if (*pos < (BLKDEV_MAJOR_HASH_SIZE + CHRDEV_MAJOR_HASH_SIZE))
- return pos;
- return NULL;
-}
-
-static void *devinfo_next(struct seq_file *f, void *v, loff_t *pos)
-{
- (*pos)++;
- if (*pos >= (BLKDEV_MAJOR_HASH_SIZE + CHRDEV_MAJOR_HASH_SIZE))
- return NULL;
- return pos;
-}
-
-static void devinfo_stop(struct seq_file *f, void *v)
-{
- /* Nothing to do */
-}
-
-static const struct seq_operations devinfo_ops = {
- .start = devinfo_start,
- .next = devinfo_next,
- .stop = devinfo_stop,
- .show = devinfo_show
-};
-
-static int devinfo_open(struct inode *inode, struct file *filp)
-{
- return seq_open(filp, &devinfo_ops);
-}
-
-static const struct file_operations proc_devinfo_operations = {
- .open = devinfo_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release,
-};
-
-static int vmstat_open(struct inode *inode, struct file *file)
-{
- return seq_open(file, &vmstat_op);
-}
-static const struct file_operations proc_vmstat_file_operations = {
- .open = vmstat_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release,
-};
-
-#ifdef CONFIG_PROC_HARDWARE
-static int hardware_read_proc(char *page, char **start, off_t off,
- int count, int *eof, void *data)
-{
- int len = get_hardware_list(page);
- return proc_calc_metrics(page, start, off, count, eof, len);
-}
-#endif
-
-#ifdef CONFIG_STRAM_PROC
-static int stram_read_proc(char *page, char **start, off_t off,
- int count, int *eof, void *data)
-{
- int len = get_stram_list(page);
- return proc_calc_metrics(page, start, off, count, eof, len);
-}
-#endif
-
-#ifdef CONFIG_BLOCK
-static int partitions_open(struct inode *inode, struct file *file)
-{
- return seq_open(file, &partitions_op);
-}
-static const struct file_operations proc_partitions_operations = {
- .open = partitions_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release,
-};
-
-static int diskstats_open(struct inode *inode, struct file *file)
-{
- return seq_open(file, &diskstats_op);
-}
-static const struct file_operations proc_diskstats_operations = {
- .open = diskstats_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release,
-};
-#endif
-
-#ifdef CONFIG_MODULES
-extern const struct seq_operations modules_op;
-static int modules_open(struct inode *inode, struct file *file)
-{
- return seq_open(file, &modules_op);
-}
-static const struct file_operations proc_modules_operations = {
- .open = modules_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release,
-};
-#endif
-
-#ifdef CONFIG_SLABINFO
-static int slabinfo_open(struct inode *inode, struct file *file)
-{
- return seq_open(file, &slabinfo_op);
-}
-static const struct file_operations proc_slabinfo_operations = {
- .open = slabinfo_open,
- .read = seq_read,
- .write = slabinfo_write,
- .llseek = seq_lseek,
- .release = seq_release,
-};
-
-#ifdef CONFIG_DEBUG_SLAB_LEAK
-extern const struct seq_operations slabstats_op;
-static int slabstats_open(struct inode *inode, struct file *file)
-{
- unsigned long *n = kzalloc(PAGE_SIZE, GFP_KERNEL);
- int ret = -ENOMEM;
- if (n) {
- ret = seq_open(file, &slabstats_op);
- if (!ret) {
- struct seq_file *m = file->private_data;
- *n = PAGE_SIZE / (2 * sizeof(unsigned long));
- m->private = n;
- n = NULL;
- }
- kfree(n);
- }
- return ret;
-}
-
-static const struct file_operations proc_slabstats_operations = {
- .open = slabstats_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release_private,
-};
-#endif
-#endif
-
-#ifdef CONFIG_MMU
-static int vmalloc_open(struct inode *inode, struct file *file)
-{
- unsigned int *ptr = NULL;
- int ret;
-
- if (NUMA_BUILD)
- ptr = kmalloc(nr_node_ids * sizeof(unsigned int), GFP_KERNEL);
- ret = seq_open(file, &vmalloc_op);
- if (!ret) {
- struct seq_file *m = file->private_data;
- m->private = ptr;
- } else
- kfree(ptr);
- return ret;
-}
-
-static const struct file_operations proc_vmalloc_operations = {
- .open = vmalloc_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release_private,
-};
-#endif
-
-#ifndef arch_irq_stat_cpu
-#define arch_irq_stat_cpu(cpu) 0
-#endif
-#ifndef arch_irq_stat
-#define arch_irq_stat() 0
-#endif
-
-static int show_stat(struct seq_file *p, void *v)
-{
- int i;
- unsigned long jif;
- cputime64_t user, nice, system, idle, iowait, irq, softirq, steal;
- cputime64_t guest;
- u64 sum = 0;
- struct timespec boottime;
- unsigned int *per_irq_sum;
-
- per_irq_sum = kzalloc(sizeof(unsigned int)*NR_IRQS, GFP_KERNEL);
- if (!per_irq_sum)
- return -ENOMEM;
-
- user = nice = system = idle = iowait =
- irq = softirq = steal = cputime64_zero;
- guest = cputime64_zero;
- getboottime(&boottime);
- jif = boottime.tv_sec;
-
- for_each_possible_cpu(i) {
- int j;
-
- user = cputime64_add(user, kstat_cpu(i).cpustat.user);
- nice = cputime64_add(nice, kstat_cpu(i).cpustat.nice);
- system = cputime64_add(system, kstat_cpu(i).cpustat.system);
- idle = cputime64_add(idle, kstat_cpu(i).cpustat.idle);
- iowait = cputime64_add(iowait, kstat_cpu(i).cpustat.iowait);
- irq = cputime64_add(irq, kstat_cpu(i).cpustat.irq);
- softirq = cputime64_add(softirq, kstat_cpu(i).cpustat.softirq);
- steal = cputime64_add(steal, kstat_cpu(i).cpustat.steal);
- guest = cputime64_add(guest, kstat_cpu(i).cpustat.guest);
- for (j = 0; j < NR_IRQS; j++) {
- unsigned int temp = kstat_cpu(i).irqs[j];
- sum += temp;
- per_irq_sum[j] += temp;
- }
- sum += arch_irq_stat_cpu(i);
- }
- sum += arch_irq_stat();
-
- seq_printf(p, "cpu %llu %llu %llu %llu %llu %llu %llu %llu %llu\n",
- (unsigned long long)cputime64_to_clock_t(user),
- (unsigned long long)cputime64_to_clock_t(nice),
- (unsigned long long)cputime64_to_clock_t(system),
- (unsigned long long)cputime64_to_clock_t(idle),
- (unsigned long long)cputime64_to_clock_t(iowait),
- (unsigned long long)cputime64_to_clock_t(irq),
- (unsigned long long)cputime64_to_clock_t(softirq),
- (unsigned long long)cputime64_to_clock_t(steal),
- (unsigned long long)cputime64_to_clock_t(guest));
- for_each_online_cpu(i) {
-
- /* Copy values here to work around gcc-2.95.3, gcc-2.96 */
- user = kstat_cpu(i).cpustat.user;
- nice = kstat_cpu(i).cpustat.nice;
- system = kstat_cpu(i).cpustat.system;
- idle = kstat_cpu(i).cpustat.idle;
- iowait = kstat_cpu(i).cpustat.iowait;
- irq = kstat_cpu(i).cpustat.irq;
- softirq = kstat_cpu(i).cpustat.softirq;
- steal = kstat_cpu(i).cpustat.steal;
- guest = kstat_cpu(i).cpustat.guest;
- seq_printf(p,
- "cpu%d %llu %llu %llu %llu %llu %llu %llu %llu %llu\n",
- i,
- (unsigned long long)cputime64_to_clock_t(user),
- (unsigned long long)cputime64_to_clock_t(nice),
- (unsigned long long)cputime64_to_clock_t(system),
- (unsigned long long)cputime64_to_clock_t(idle),
- (unsigned long long)cputime64_to_clock_t(iowait),
- (unsigned long long)cputime64_to_clock_t(irq),
- (unsigned long long)cputime64_to_clock_t(softirq),
- (unsigned long long)cputime64_to_clock_t(steal),
- (unsigned long long)cputime64_to_clock_t(guest));
- }
- seq_printf(p, "intr %llu", (unsigned long long)sum);
-
- for (i = 0; i < NR_IRQS; i++)
- seq_printf(p, " %u", per_irq_sum[i]);
-
- seq_printf(p,
- "\nctxt %llu\n"
- "btime %lu\n"
- "processes %lu\n"
- "procs_running %lu\n"
- "procs_blocked %lu\n",
- nr_context_switches(),
- (unsigned long)jif,
- total_forks,
- nr_running(),
- nr_iowait());
-
- kfree(per_irq_sum);
- return 0;
-}
-
-static int stat_open(struct inode *inode, struct file *file)
-{
- unsigned size = 4096 * (1 + num_possible_cpus() / 32);
- char *buf;
- struct seq_file *m;
- int res;
-
- /* don't ask for more than the kmalloc() max size, currently 128 KB */
- if (size > 128 * 1024)
- size = 128 * 1024;
- buf = kmalloc(size, GFP_KERNEL);
- if (!buf)
- return -ENOMEM;
-
- res = single_open(file, show_stat, NULL);
- if (!res) {
- m = file->private_data;
- m->buf = buf;
- m->size = size;
- } else
- kfree(buf);
- return res;
-}
-static const struct file_operations proc_stat_operations = {
- .open = stat_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
-
-/*
- * /proc/interrupts
- */
-static void *int_seq_start(struct seq_file *f, loff_t *pos)
-{
- return (*pos <= NR_IRQS) ? pos : NULL;
-}
-
-static void *int_seq_next(struct seq_file *f, void *v, loff_t *pos)
-{
- (*pos)++;
- if (*pos > NR_IRQS)
- return NULL;
- return pos;
-}
-
-static void int_seq_stop(struct seq_file *f, void *v)
-{
- /* Nothing to do */
-}
-
-
-static const struct seq_operations int_seq_ops = {
- .start = int_seq_start,
- .next = int_seq_next,
- .stop = int_seq_stop,
- .show = show_interrupts
-};
-
-static int interrupts_open(struct inode *inode, struct file *filp)
-{
- return seq_open(filp, &int_seq_ops);
-}
-
-static const struct file_operations proc_interrupts_operations = {
- .open = interrupts_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release,
-};
-
-static int filesystems_read_proc(char *page, char **start, off_t off,
- int count, int *eof, void *data)
-{
- int len = get_filesystem_list(page);
- return proc_calc_metrics(page, start, off, count, eof, len);
-}
-
-static int cmdline_read_proc(char *page, char **start, off_t off,
- int count, int *eof, void *data)
-{
- int len;
-
- len = sprintf(page, "%s\n", saved_command_line);
- return proc_calc_metrics(page, start, off, count, eof, len);
-}
-
-#ifdef CONFIG_FILE_LOCKING
-static int locks_open(struct inode *inode, struct file *filp)
-{
- return seq_open(filp, &locks_seq_operations);
-}
-
-static const struct file_operations proc_locks_operations = {
- .open = locks_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release,
-};
-#endif /* CONFIG_FILE_LOCKING */
-
-static int execdomains_read_proc(char *page, char **start, off_t off,
- int count, int *eof, void *data)
-{
- int len = get_exec_domain_list(page);
- return proc_calc_metrics(page, start, off, count, eof, len);
-}
-
-#ifdef CONFIG_PROC_PAGE_MONITOR
-#define KPMSIZE sizeof(u64)
-#define KPMMASK (KPMSIZE - 1)
-/* /proc/kpagecount - an array exposing page counts
- *
- * Each entry is a u64 representing the corresponding
- * physical page count.
- */
-static ssize_t kpagecount_read(struct file *file, char __user *buf,
- size_t count, loff_t *ppos)
-{
- u64 __user *out = (u64 __user *)buf;
- struct page *ppage;
- unsigned long src = *ppos;
- unsigned long pfn;
- ssize_t ret = 0;
- u64 pcount;
-
- pfn = src / KPMSIZE;
- count = min_t(size_t, count, (max_pfn * KPMSIZE) - src);
- if (src & KPMMASK || count & KPMMASK)
- return -EINVAL;
-
- while (count > 0) {
- ppage = NULL;
- if (pfn_valid(pfn))
- ppage = pfn_to_page(pfn);
- pfn++;
- if (!ppage)
- pcount = 0;
- else
- pcount = page_mapcount(ppage);
-
- if (put_user(pcount, out++)) {
- ret = -EFAULT;
- break;
- }
-
- count -= KPMSIZE;
- }
-
- *ppos += (char __user *)out - buf;
- if (!ret)
- ret = (char __user *)out - buf;
- return ret;
-}
-
-static struct file_operations proc_kpagecount_operations = {
- .llseek = mem_lseek,
- .read = kpagecount_read,
-};
-
-/* /proc/kpageflags - an array exposing page flags
- *
- * Each entry is a u64 representing the corresponding
- * physical page flags.
- */
-
-/* These macros are used to decouple internal flags from exported ones */
-
-#define KPF_LOCKED 0
-#define KPF_ERROR 1
-#define KPF_REFERENCED 2
-#define KPF_UPTODATE 3
-#define KPF_DIRTY 4
-#define KPF_LRU 5
-#define KPF_ACTIVE 6
-#define KPF_SLAB 7
-#define KPF_WRITEBACK 8
-#define KPF_RECLAIM 9
-#define KPF_BUDDY 10
-
-#define kpf_copy_bit(flags, srcpos, dstpos) (((flags >> srcpos) & 1) << dstpos)
-
-static ssize_t kpageflags_read(struct file *file, char __user *buf,
- size_t count, loff_t *ppos)
-{
- u64 __user *out = (u64 __user *)buf;
- struct page *ppage;
- unsigned long src = *ppos;
- unsigned long pfn;
- ssize_t ret = 0;
- u64 kflags, uflags;
-
- pfn = src / KPMSIZE;
- count = min_t(unsigned long, count, (max_pfn * KPMSIZE) - src);
- if (src & KPMMASK || count & KPMMASK)
- return -EINVAL;
-
- while (count > 0) {
- ppage = NULL;
- if (pfn_valid(pfn))
- ppage = pfn_to_page(pfn);
- pfn++;
- if (!ppage)
- kflags = 0;
- else
- kflags = ppage->flags;
-
- uflags = kpf_copy_bit(KPF_LOCKED, PG_locked, kflags) |
- kpf_copy_bit(kflags, KPF_ERROR, PG_error) |
- kpf_copy_bit(kflags, KPF_REFERENCED, PG_referenced) |
- kpf_copy_bit(kflags, KPF_UPTODATE, PG_uptodate) |
- kpf_copy_bit(kflags, KPF_DIRTY, PG_dirty) |
- kpf_copy_bit(kflags, KPF_LRU, PG_lru) |
- kpf_copy_bit(kflags, KPF_ACTIVE, PG_active) |
- kpf_copy_bit(kflags, KPF_SLAB, PG_slab) |
- kpf_copy_bit(kflags, KPF_WRITEBACK, PG_writeback) |
- kpf_copy_bit(kflags, KPF_RECLAIM, PG_reclaim) |
- kpf_copy_bit(kflags, KPF_BUDDY, PG_buddy);
-
- if (put_user(uflags, out++)) {
- ret = -EFAULT;
- break;
- }
-
- count -= KPMSIZE;
- }
-
- *ppos += (char __user *)out - buf;
- if (!ret)
- ret = (char __user *)out - buf;
- return ret;
-}
-
-static struct file_operations proc_kpageflags_operations = {
- .llseek = mem_lseek,
- .read = kpageflags_read,
-};
-#endif /* CONFIG_PROC_PAGE_MONITOR */
-
-struct proc_dir_entry *proc_root_kcore;
-
-void __init proc_misc_init(void)
-{
- static struct {
- char *name;
- int (*read_proc)(char*,char**,off_t,int,int*,void*);
- } *p, simple_ones[] = {
- {"loadavg", loadavg_read_proc},
- {"uptime", uptime_read_proc},
- {"meminfo", meminfo_read_proc},
- {"version", version_read_proc},
-#ifdef CONFIG_PROC_HARDWARE
- {"hardware", hardware_read_proc},
-#endif
-#ifdef CONFIG_STRAM_PROC
- {"stram", stram_read_proc},
-#endif
- {"filesystems", filesystems_read_proc},
- {"cmdline", cmdline_read_proc},
- {"execdomains", execdomains_read_proc},
- {NULL,}
- };
- for (p = simple_ones; p->name; p++)
- create_proc_read_entry(p->name, 0, NULL, p->read_proc, NULL);
-
- proc_symlink("mounts", NULL, "self/mounts");
-
- /* And now for trickier ones */
-#ifdef CONFIG_PRINTK
- proc_create("kmsg", S_IRUSR, NULL, &proc_kmsg_operations);
-#endif
-#ifdef CONFIG_FILE_LOCKING
- proc_create("locks", 0, NULL, &proc_locks_operations);
-#endif
- proc_create("devices", 0, NULL, &proc_devinfo_operations);
- proc_create("cpuinfo", 0, NULL, &proc_cpuinfo_operations);
-#ifdef CONFIG_BLOCK
- proc_create("partitions", 0, NULL, &proc_partitions_operations);
-#endif
- proc_create("stat", 0, NULL, &proc_stat_operations);
- proc_create("interrupts", 0, NULL, &proc_interrupts_operations);
-#ifdef CONFIG_SLABINFO
- proc_create("slabinfo",S_IWUSR|S_IRUGO,NULL,&proc_slabinfo_operations);
-#ifdef CONFIG_DEBUG_SLAB_LEAK
- proc_create("slab_allocators", 0, NULL, &proc_slabstats_operations);
-#endif
-#endif
-#ifdef CONFIG_MMU
- proc_create("vmallocinfo", S_IRUSR, NULL, &proc_vmalloc_operations);
-#endif
- proc_create("buddyinfo", S_IRUGO, NULL, &fragmentation_file_operations);
- proc_create("pagetypeinfo", S_IRUGO, NULL, &pagetypeinfo_file_ops);
- proc_create("vmstat", S_IRUGO, NULL, &proc_vmstat_file_operations);
- proc_create("zoneinfo", S_IRUGO, NULL, &proc_zoneinfo_file_operations);
-#ifdef CONFIG_BLOCK
- proc_create("diskstats", 0, NULL, &proc_diskstats_operations);
-#endif
-#ifdef CONFIG_MODULES
- proc_create("modules", 0, NULL, &proc_modules_operations);
-#endif
-#ifdef CONFIG_SCHEDSTATS
- proc_create("schedstat", 0, NULL, &proc_schedstat_operations);
-#endif
-#ifdef CONFIG_PROC_KCORE
- proc_root_kcore = proc_create("kcore", S_IRUSR, NULL, &proc_kcore_operations);
- if (proc_root_kcore)
- proc_root_kcore->size =
- (size_t)high_memory - PAGE_OFFSET + PAGE_SIZE;
-#endif
-#ifdef CONFIG_PROC_PAGE_MONITOR
- proc_create("kpagecount", S_IRUSR, NULL, &proc_kpagecount_operations);
- proc_create("kpageflags", S_IRUSR, NULL, &proc_kpageflags_operations);
-#endif
-#ifdef CONFIG_PROC_VMCORE
- proc_vmcore = proc_create("vmcore", S_IRUSR, NULL, &proc_vmcore_operations);
-#endif
-}
diff --git a/fs/proc/proc_sysctl.c b/fs/proc/proc_sysctl.c
index 945a81043ba..94fcfff6863 100644
--- a/fs/proc/proc_sysctl.c
+++ b/fs/proc/proc_sysctl.c
@@ -1,7 +1,7 @@
/*
* /proc/sys support
*/
-
+#include <linux/init.h>
#include <linux/sysctl.h>
#include <linux/proc_fs.h>
#include <linux/security.h>
@@ -298,13 +298,19 @@ static int proc_sys_permission(struct inode *inode, int mask)
* sysctl entries that are not writeable,
* are _NOT_ writeable, capabilities or not.
*/
- struct ctl_table_header *head = grab_header(inode);
- struct ctl_table *table = PROC_I(inode)->sysctl_entry;
+ struct ctl_table_header *head;
+ struct ctl_table *table;
int error;
+ /* Executable files are not allowed under /proc/sys/ */
+ if ((mask & MAY_EXEC) && S_ISREG(inode->i_mode))
+ return -EACCES;
+
+ head = grab_header(inode);
if (IS_ERR(head))
return PTR_ERR(head);
+ table = PROC_I(inode)->sysctl_entry;
if (!table) /* global root - r-xr-xr-x */
error = mask & MAY_WRITE ? -EACCES : 0;
else /* Use the permissions on the sysctl table entry */
@@ -353,6 +359,7 @@ static const struct file_operations proc_sys_file_operations = {
static const struct file_operations proc_sys_dir_file_operations = {
.readdir = proc_sys_readdir,
+ .llseek = generic_file_llseek,
};
static const struct inode_operations proc_sys_inode_operations = {
@@ -395,7 +402,7 @@ static struct dentry_operations proc_sys_dentry_operations = {
.d_compare = proc_sys_compare,
};
-int proc_sys_init(void)
+int __init proc_sys_init(void)
{
struct proc_dir_entry *proc_sys_root;
diff --git a/fs/proc/root.c b/fs/proc/root.c
index 95117538a4f..7761602af9d 100644
--- a/fs/proc/root.c
+++ b/fs/proc/root.c
@@ -104,9 +104,9 @@ static struct file_system_type proc_fs_type = {
void __init proc_root_init(void)
{
- int err = proc_init_inodecache();
- if (err)
- return;
+ int err;
+
+ proc_init_inodecache();
err = register_filesystem(&proc_fs_type);
if (err)
return;
@@ -117,7 +117,7 @@ void __init proc_root_init(void)
return;
}
- proc_misc_init();
+ proc_symlink("mounts", NULL, "self/mounts");
proc_net_init();
diff --git a/fs/proc/stat.c b/fs/proc/stat.c
new file mode 100644
index 00000000000..81904f07679
--- /dev/null
+++ b/fs/proc/stat.c
@@ -0,0 +1,153 @@
+#include <linux/cpumask.h>
+#include <linux/fs.h>
+#include <linux/gfp.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/kernel_stat.h>
+#include <linux/proc_fs.h>
+#include <linux/sched.h>
+#include <linux/seq_file.h>
+#include <linux/slab.h>
+#include <linux/time.h>
+#include <asm/cputime.h>
+
+#ifndef arch_irq_stat_cpu
+#define arch_irq_stat_cpu(cpu) 0
+#endif
+#ifndef arch_irq_stat
+#define arch_irq_stat() 0
+#endif
+
+static int show_stat(struct seq_file *p, void *v)
+{
+ int i, j;
+ unsigned long jif;
+ cputime64_t user, nice, system, idle, iowait, irq, softirq, steal;
+ cputime64_t guest;
+ u64 sum = 0;
+ struct timespec boottime;
+ unsigned int per_irq_sum;
+
+ user = nice = system = idle = iowait =
+ irq = softirq = steal = cputime64_zero;
+ guest = cputime64_zero;
+ getboottime(&boottime);
+ jif = boottime.tv_sec;
+
+ for_each_possible_cpu(i) {
+ user = cputime64_add(user, kstat_cpu(i).cpustat.user);
+ nice = cputime64_add(nice, kstat_cpu(i).cpustat.nice);
+ system = cputime64_add(system, kstat_cpu(i).cpustat.system);
+ idle = cputime64_add(idle, kstat_cpu(i).cpustat.idle);
+ iowait = cputime64_add(iowait, kstat_cpu(i).cpustat.iowait);
+ irq = cputime64_add(irq, kstat_cpu(i).cpustat.irq);
+ softirq = cputime64_add(softirq, kstat_cpu(i).cpustat.softirq);
+ steal = cputime64_add(steal, kstat_cpu(i).cpustat.steal);
+ guest = cputime64_add(guest, kstat_cpu(i).cpustat.guest);
+
+ for_each_irq_nr(j)
+ sum += kstat_irqs_cpu(j, i);
+
+ sum += arch_irq_stat_cpu(i);
+ }
+ sum += arch_irq_stat();
+
+ seq_printf(p, "cpu %llu %llu %llu %llu %llu %llu %llu %llu %llu\n",
+ (unsigned long long)cputime64_to_clock_t(user),
+ (unsigned long long)cputime64_to_clock_t(nice),
+ (unsigned long long)cputime64_to_clock_t(system),
+ (unsigned long long)cputime64_to_clock_t(idle),
+ (unsigned long long)cputime64_to_clock_t(iowait),
+ (unsigned long long)cputime64_to_clock_t(irq),
+ (unsigned long long)cputime64_to_clock_t(softirq),
+ (unsigned long long)cputime64_to_clock_t(steal),
+ (unsigned long long)cputime64_to_clock_t(guest));
+ for_each_online_cpu(i) {
+
+ /* Copy values here to work around gcc-2.95.3, gcc-2.96 */
+ user = kstat_cpu(i).cpustat.user;
+ nice = kstat_cpu(i).cpustat.nice;
+ system = kstat_cpu(i).cpustat.system;
+ idle = kstat_cpu(i).cpustat.idle;
+ iowait = kstat_cpu(i).cpustat.iowait;
+ irq = kstat_cpu(i).cpustat.irq;
+ softirq = kstat_cpu(i).cpustat.softirq;
+ steal = kstat_cpu(i).cpustat.steal;
+ guest = kstat_cpu(i).cpustat.guest;
+ seq_printf(p,
+ "cpu%d %llu %llu %llu %llu %llu %llu %llu %llu %llu\n",
+ i,
+ (unsigned long long)cputime64_to_clock_t(user),
+ (unsigned long long)cputime64_to_clock_t(nice),
+ (unsigned long long)cputime64_to_clock_t(system),
+ (unsigned long long)cputime64_to_clock_t(idle),
+ (unsigned long long)cputime64_to_clock_t(iowait),
+ (unsigned long long)cputime64_to_clock_t(irq),
+ (unsigned long long)cputime64_to_clock_t(softirq),
+ (unsigned long long)cputime64_to_clock_t(steal),
+ (unsigned long long)cputime64_to_clock_t(guest));
+ }
+ seq_printf(p, "intr %llu", (unsigned long long)sum);
+
+ /* sum again ? it could be updated? */
+ for_each_irq_nr(j) {
+ per_irq_sum = 0;
+
+ for_each_possible_cpu(i)
+ per_irq_sum += kstat_irqs_cpu(j, i);
+
+ seq_printf(p, " %u", per_irq_sum);
+ }
+
+ seq_printf(p,
+ "\nctxt %llu\n"
+ "btime %lu\n"
+ "processes %lu\n"
+ "procs_running %lu\n"
+ "procs_blocked %lu\n",
+ nr_context_switches(),
+ (unsigned long)jif,
+ total_forks,
+ nr_running(),
+ nr_iowait());
+
+ return 0;
+}
+
+static int stat_open(struct inode *inode, struct file *file)
+{
+ unsigned size = 4096 * (1 + num_possible_cpus() / 32);
+ char *buf;
+ struct seq_file *m;
+ int res;
+
+ /* don't ask for more than the kmalloc() max size, currently 128 KB */
+ if (size > 128 * 1024)
+ size = 128 * 1024;
+ buf = kmalloc(size, GFP_KERNEL);
+ if (!buf)
+ return -ENOMEM;
+
+ res = single_open(file, show_stat, NULL);
+ if (!res) {
+ m = file->private_data;
+ m->buf = buf;
+ m->size = size;
+ } else
+ kfree(buf);
+ return res;
+}
+
+static const struct file_operations proc_stat_operations = {
+ .open = stat_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+static int __init proc_stat_init(void)
+{
+ proc_create("stat", 0, NULL, &proc_stat_operations);
+ return 0;
+}
+module_init(proc_stat_init);
diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c
index 4806830ea2a..b770c095e45 100644
--- a/fs/proc/task_mmu.c
+++ b/fs/proc/task_mmu.c
@@ -198,11 +198,8 @@ static int do_maps_open(struct inode *inode, struct file *file,
return ret;
}
-static int show_map(struct seq_file *m, void *v)
+static void show_map_vma(struct seq_file *m, struct vm_area_struct *vma)
{
- struct proc_maps_private *priv = m->private;
- struct task_struct *task = priv->task;
- struct vm_area_struct *vma = v;
struct mm_struct *mm = vma->vm_mm;
struct file *file = vma->vm_file;
int flags = vma->vm_flags;
@@ -254,6 +251,15 @@ static int show_map(struct seq_file *m, void *v)
}
}
seq_putc(m, '\n');
+}
+
+static int show_map(struct seq_file *m, void *v)
+{
+ struct vm_area_struct *vma = v;
+ struct proc_maps_private *priv = m->private;
+ struct task_struct *task = priv->task;
+
+ show_map_vma(m, vma);
if (m->count < m->size) /* vma is copied successfully */
m->version = (vma != get_gate_vma(task))? vma->vm_start: 0;
@@ -364,9 +370,10 @@ static int smaps_pte_range(pmd_t *pmd, unsigned long addr, unsigned long end,
static int show_smap(struct seq_file *m, void *v)
{
+ struct proc_maps_private *priv = m->private;
+ struct task_struct *task = priv->task;
struct vm_area_struct *vma = v;
struct mem_size_stats mss;
- int ret;
struct mm_walk smaps_walk = {
.pmd_entry = smaps_pte_range,
.mm = vma->vm_mm,
@@ -378,9 +385,7 @@ static int show_smap(struct seq_file *m, void *v)
if (vma->vm_mm && !is_vm_hugetlb_page(vma))
walk_page_range(vma->vm_start, vma->vm_end, &smaps_walk);
- ret = show_map(m, v);
- if (ret)
- return ret;
+ show_map_vma(m, vma);
seq_printf(m,
"Size: %8lu kB\n"
@@ -402,7 +407,9 @@ static int show_smap(struct seq_file *m, void *v)
mss.referenced >> 10,
mss.swap >> 10);
- return ret;
+ if (m->count < m->size) /* vma is copied successfully */
+ m->version = (vma != get_gate_vma(task)) ? vma->vm_start : 0;
+ return 0;
}
static const struct seq_operations proc_pid_smaps_op = {
diff --git a/fs/proc/uptime.c b/fs/proc/uptime.c
new file mode 100644
index 00000000000..0c10a0b3f14
--- /dev/null
+++ b/fs/proc/uptime.c
@@ -0,0 +1,43 @@
+#include <linux/fs.h>
+#include <linux/init.h>
+#include <linux/proc_fs.h>
+#include <linux/sched.h>
+#include <linux/seq_file.h>
+#include <linux/time.h>
+#include <asm/cputime.h>
+
+static int uptime_proc_show(struct seq_file *m, void *v)
+{
+ struct timespec uptime;
+ struct timespec idle;
+ cputime_t idletime = cputime_add(init_task.utime, init_task.stime);
+
+ do_posix_clock_monotonic_gettime(&uptime);
+ monotonic_to_bootbased(&uptime);
+ cputime_to_timespec(idletime, &idle);
+ seq_printf(m, "%lu.%02lu %lu.%02lu\n",
+ (unsigned long) uptime.tv_sec,
+ (uptime.tv_nsec / (NSEC_PER_SEC / 100)),
+ (unsigned long) idle.tv_sec,
+ (idle.tv_nsec / (NSEC_PER_SEC / 100)));
+ return 0;
+}
+
+static int uptime_proc_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, uptime_proc_show, NULL);
+}
+
+static const struct file_operations uptime_proc_fops = {
+ .open = uptime_proc_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+static int __init proc_uptime_init(void)
+{
+ proc_create("uptime", 0, NULL, &uptime_proc_fops);
+ return 0;
+}
+module_init(proc_uptime_init);
diff --git a/fs/proc/version.c b/fs/proc/version.c
new file mode 100644
index 00000000000..76817a60678
--- /dev/null
+++ b/fs/proc/version.c
@@ -0,0 +1,34 @@
+#include <linux/fs.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/proc_fs.h>
+#include <linux/seq_file.h>
+#include <linux/utsname.h>
+
+static int version_proc_show(struct seq_file *m, void *v)
+{
+ seq_printf(m, linux_proc_banner,
+ utsname()->sysname,
+ utsname()->release,
+ utsname()->version);
+ return 0;
+}
+
+static int version_proc_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, version_proc_show, NULL);
+}
+
+static const struct file_operations version_proc_fops = {
+ .open = version_proc_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+static int __init proc_version_init(void)
+{
+ proc_create("version", 0, NULL, &version_proc_fops);
+ return 0;
+}
+module_init(proc_version_init);
diff --git a/fs/proc/vmcore.c b/fs/proc/vmcore.c
index 841368b87a2..03ec5950490 100644
--- a/fs/proc/vmcore.c
+++ b/fs/proc/vmcore.c
@@ -32,10 +32,7 @@ static size_t elfcorebuf_sz;
/* Total size of vmcore file. */
static u64 vmcore_size;
-/* Stores the physical address of elf header of crash image. */
-unsigned long long elfcorehdr_addr = ELFCORE_ADDR_MAX;
-
-struct proc_dir_entry *proc_vmcore = NULL;
+static struct proc_dir_entry *proc_vmcore = NULL;
/* Reads a page from the oldmem device from given offset. */
static ssize_t read_from_oldmem(char *buf, size_t count,
@@ -165,7 +162,7 @@ static ssize_t read_vmcore(struct file *file, char __user *buffer,
return acc;
}
-const struct file_operations proc_vmcore_operations = {
+static const struct file_operations proc_vmcore_operations = {
.read = read_vmcore,
};
@@ -647,7 +644,7 @@ static int __init vmcore_init(void)
int rc = 0;
/* If elfcorehdr= has been passed in cmdline, then capture the dump.*/
- if (!(elfcorehdr_addr < ELFCORE_ADDR_MAX))
+ if (!(is_vmcore_usable()))
return rc;
rc = parse_crash_elf_headers();
if (rc) {
@@ -655,7 +652,7 @@ static int __init vmcore_init(void)
return rc;
}
- /* Initialize /proc/vmcore size if proc is already up. */
+ proc_vmcore = proc_create("vmcore", S_IRUSR, NULL, &proc_vmcore_operations);
if (proc_vmcore)
proc_vmcore->size = vmcore_size;
return 0;
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-27 03:58:10 +0000