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| author | NeilBrown <neilb@suse.de> | 2006-03-27 01:15:09 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-03-27 08:44:43 -0800 |
| commit | baab935ff3bdac20c558809da0d8e8f761840219 (patch) | |
| tree | a22c3189505fe8e7ab3820c988ffd771c0b64fa6 /include/linux/sunrpc | |
| parent | ebd0cb1af3be2729cc1f574681dfba01fcf458d9 (diff) | |
| download | linux-baab935ff3bdac20c558809da0d8e8f761840219.tar.gz linux-baab935ff3bdac20c558809da0d8e8f761840219.tar.bz2 linux-baab935ff3bdac20c558809da0d8e8f761840219.zip | |
[PATCH] knfsd: Convert sunrpc_cache to use krefs
.. it makes some of the code nicer.
Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/linux/sunrpc')
| -rw-r--r-- | include/linux/sunrpc/cache.h | 13 |
1 files changed, 6 insertions, 7 deletions
diff --git a/include/linux/sunrpc/cache.h b/include/linux/sunrpc/cache.h index a37fead1873b..ad3f5cbdb770 100644 --- a/include/linux/sunrpc/cache.h +++ b/include/linux/sunrpc/cache.h @@ -50,7 +50,7 @@ struct cache_head { time_t last_refresh; /* If CACHE_PENDING, this is when upcall * was sent, else this is when update was received */ - atomic_t refcnt; + struct kref ref; unsigned long flags; }; #define CACHE_VALID 0 /* Entry contains valid data */ @@ -68,8 +68,7 @@ struct cache_detail { atomic_t inuse; /* active user-space update or lookup */ char *name; - void (*cache_put)(struct cache_head *, - struct cache_detail*); + void (*cache_put)(struct kref *); void (*cache_request)(struct cache_detail *cd, struct cache_head *h, @@ -151,17 +150,17 @@ extern void cache_clean_deferred(void *owner); static inline struct cache_head *cache_get(struct cache_head *h) { - atomic_inc(&h->refcnt); + kref_get(&h->ref); return h; } -static inline int cache_put(struct cache_head *h, struct cache_detail *cd) +static inline void cache_put(struct cache_head *h, struct cache_detail *cd) { - if (atomic_read(&h->refcnt) <= 2 && + if (atomic_read(&h->ref.refcount) <= 2 && h->expiry_time < cd->nextcheck) cd->nextcheck = h->expiry_time; - return atomic_dec_and_test(&h->refcnt); + kref_put(&h->ref, cd->cache_put); } extern void cache_init(struct cache_head *h); |