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sysctl: Move the implementation into fs/proc/proc_sysctl.c

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Move the core sysctl code from kernel/sysctl.c and kernel/sysctl_check.c
into fs/proc/proc_sysctl.c.

Currently sysctl maintenance is hampered by the sysctl implementation
being split across 3 files with artificial layering between them.
Consolidate the entire sysctl implementation into 1 file so that
it is easier to see what is going on and hopefully allowing for
simpler maintenance.

For functions that are now only used in fs/proc/proc_sysctl.c remove
their declarations from sysctl.h and make them static in fs/proc/proc_sysctl.c

Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
This commit is contained in:
Eric W. Biederman
2012-01-06 04:07:15 -08:00
parent de4e83bd6b
commit 1f87f0b52b
6 changed files with 625 additions and 641 deletions
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include/linux/sysctl.h
-16
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@@ -1073,17 +1073,6 @@ extern void setup_sysctl_set(struct ctl_table_set *p,
struct ctl_table_set *parent,
int (*is_seen)(struct ctl_table_set *));
extern void sysctl_head_get(struct ctl_table_header *);
extern void sysctl_head_put(struct ctl_table_header *);
extern int sysctl_is_seen(struct ctl_table_header *);
extern struct ctl_table_header *sysctl_head_grab(struct ctl_table_header *);
extern struct ctl_table_header *sysctl_head_next(struct ctl_table_header *prev);
extern struct ctl_table_header *__sysctl_head_next(struct nsproxy *namespaces,
struct ctl_table_header *prev);
extern void sysctl_head_finish(struct ctl_table_header *prev);
extern int sysctl_perm(struct ctl_table_root *root,
struct ctl_table *table, int op);
void register_sysctl_root(struct ctl_table_root *root);
struct ctl_table_header *__register_sysctl_paths(
struct ctl_table_root *root, struct nsproxy *namespaces,
@@ -1093,7 +1082,6 @@ struct ctl_table_header *register_sysctl_paths(const struct ctl_path *path,
struct ctl_table *table);
void unregister_sysctl_table(struct ctl_table_header * table);
int sysctl_check_table(struct nsproxy *namespaces, struct ctl_table *table);
extern int sysctl_init(void);
#else /* CONFIG_SYSCTL */
@@ -1118,10 +1106,6 @@ static inline void setup_sysctl_set(struct ctl_table_set *p,
{
}
static inline void sysctl_head_put(struct ctl_table_header *head)
{
}
#endif /* CONFIG_SYSCTL */
#endif /* __KERNEL__ */