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fscache: Move fscache_cookies_seq_ops specific code under CONFIG_PROC_FS

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fscache_cookies_seq_ops is only used in proc.c that is compiled under
enabled CONFIG_PROC_FS, so move related code under this config. The
same case exsits in internal.h.

Also, make fscache_lru_cookie_timeout static due to no user outside
of cookie.c.

Signed-off-by: Yue Hu <huyue2@coolpad.com>
Signed-off-by: David Howells <dhowells@redhat.com>
cc: linux-cachefs@redhat.com
Link: https://listman.redhat.com/archives/linux-cachefs/2022-April/006649.html # v1
This commit is contained in:
Yue Hu
2022-04-02 12:47:43 +08:00
committed by David Howells
parent 2c547f2998
commit 19517e5374
2 changed files with 7 additions and 1 deletions
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4
fs/fscache/cookie.c
View File

@@ -30,7 +30,7 @@ static DEFINE_SPINLOCK(fscache_cookie_lru_lock);
DEFINE_TIMER(fscache_cookie_lru_timer, fscache_cookie_lru_timed_out); DEFINE_TIMER(fscache_cookie_lru_timer, fscache_cookie_lru_timed_out);
static DECLARE_WORK(fscache_cookie_lru_work, fscache_cookie_lru_worker); static DECLARE_WORK(fscache_cookie_lru_work, fscache_cookie_lru_worker);
static const char fscache_cookie_states[FSCACHE_COOKIE_STATE__NR] = "-LCAIFUWRD"; static const char fscache_cookie_states[FSCACHE_COOKIE_STATE__NR] = "-LCAIFUWRD";
unsigned int fscache_lru_cookie_timeout = 10 * HZ; static unsigned int fscache_lru_cookie_timeout = 10 * HZ;
void fscache_print_cookie(struct fscache_cookie *cookie, char prefix) void fscache_print_cookie(struct fscache_cookie *cookie, char prefix)
{ {
@@ -1069,6 +1069,7 @@ void __fscache_invalidate(struct fscache_cookie *cookie,
} }
EXPORT_SYMBOL(__fscache_invalidate); EXPORT_SYMBOL(__fscache_invalidate);
#ifdef CONFIG_PROC_FS
/* /*
* Generate a list of extant cookies in /proc/fs/fscache/cookies * Generate a list of extant cookies in /proc/fs/fscache/cookies
*/ */
@@ -1145,3 +1146,4 @@ const struct seq_operations fscache_cookies_seq_ops = {
.stop = fscache_cookies_seq_stop, .stop = fscache_cookies_seq_stop,
.show = fscache_cookies_seq_show, .show = fscache_cookies_seq_show,
}; };
#endif

4
fs/fscache/internal.h
View File

@@ -56,7 +56,9 @@ static inline bool fscache_set_cache_state_maybe(struct fscache_cache *cache,
* cookie.c * cookie.c
*/ */
extern struct kmem_cache *fscache_cookie_jar; extern struct kmem_cache *fscache_cookie_jar;
#ifdef CONFIG_PROC_FS
extern const struct seq_operations fscache_cookies_seq_ops; extern const struct seq_operations fscache_cookies_seq_ops;
#endif
extern struct timer_list fscache_cookie_lru_timer; extern struct timer_list fscache_cookie_lru_timer;
extern void fscache_print_cookie(struct fscache_cookie *cookie, char prefix); extern void fscache_print_cookie(struct fscache_cookie *cookie, char prefix);
@@ -137,7 +139,9 @@ int fscache_stats_show(struct seq_file *m, void *v);
/* /*
* volume.c * volume.c
*/ */
#ifdef CONFIG_PROC_FS
extern const struct seq_operations fscache_volumes_seq_ops; extern const struct seq_operations fscache_volumes_seq_ops;
#endif
struct fscache_volume *fscache_get_volume(struct fscache_volume *volume, struct fscache_volume *fscache_get_volume(struct fscache_volume *volume,
enum fscache_volume_trace where); enum fscache_volume_trace where);