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Diffstat (limited to 'fs/file_table.c')
-rw-r--r--fs/file_table.c47
1 files changed, 39 insertions, 8 deletions
diff --git a/fs/file_table.c b/fs/file_table.c
index 45437f8e1003..57edef16dce4 100644
--- a/fs/file_table.c
+++ b/fs/file_table.c
@@ -33,7 +33,7 @@
#include "internal.h"
/* sysctl tunables... */
-struct files_stat_struct files_stat = {
+static struct files_stat_struct files_stat = {
.max_files = NR_FILE
};
@@ -75,22 +75,53 @@ unsigned long get_max_files(void)
}
EXPORT_SYMBOL_GPL(get_max_files);
+#if defined(CONFIG_SYSCTL) && defined(CONFIG_PROC_FS)
+
/*
* Handle nr_files sysctl
*/
-#if defined(CONFIG_SYSCTL) && defined(CONFIG_PROC_FS)
-int proc_nr_files(struct ctl_table *table, int write,
- void *buffer, size_t *lenp, loff_t *ppos)
+static int proc_nr_files(struct ctl_table *table, int write, void *buffer,
+ size_t *lenp, loff_t *ppos)
{
files_stat.nr_files = get_nr_files();
return proc_doulongvec_minmax(table, write, buffer, lenp, ppos);
}
-#else
-int proc_nr_files(struct ctl_table *table, int write,
- void *buffer, size_t *lenp, loff_t *ppos)
+
+static struct ctl_table fs_stat_sysctls[] = {
+ {
+ .procname = "file-nr",
+ .data = &files_stat,
+ .maxlen = sizeof(files_stat),
+ .mode = 0444,
+ .proc_handler = proc_nr_files,
+ },
+ {
+ .procname = "file-max",
+ .data = &files_stat.max_files,
+ .maxlen = sizeof(files_stat.max_files),
+ .mode = 0644,
+ .proc_handler = proc_doulongvec_minmax,
+ .extra1 = SYSCTL_LONG_ZERO,
+ .extra2 = SYSCTL_LONG_MAX,
+ },
+ {
+ .procname = "nr_open",
+ .data = &sysctl_nr_open,
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec_minmax,
+ .extra1 = &sysctl_nr_open_min,
+ .extra2 = &sysctl_nr_open_max,
+ },
+ { }
+};
+
+static int __init init_fs_stat_sysctls(void)
{
- return -ENOSYS;
+ register_sysctl_init("fs", fs_stat_sysctls);
+ return 0;
}
+fs_initcall(init_fs_stat_sysctls);
#endif
static struct file *__alloc_file(int flags, const struct cred *cred)