From 908329f2c08b8b5af7b394f709b0ee9c43b93041 Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Wed, 9 Sep 2009 16:32:54 +1000 Subject: sunrpc/cache: simplify cache_fresh_locked and cache_fresh_unlocked. The extra call to cache_revisit_request in cache_fresh_unlocked is not needed, as should have been fairly clear at the time of commit 4013edea9a0b6cdcb1fdf5d4011e47e068fd6efb If there are requests to be revisited, then we can be sure that CACHE_PENDING is set, so the second call is sufficient. So remove the first call. Then remove the 'new' parameter, then remove the return value for cache_fresh_locked which is only used to provide the value for 'new'. Signed-off-by: NeilBrown Signed-off-by: J. Bruce Fields --- net/sunrpc/cache.c | 23 ++++++++++------------- 1 file changed, 10 insertions(+), 13 deletions(-) (limited to 'net/sunrpc') diff --git a/net/sunrpc/cache.c b/net/sunrpc/cache.c index 1a50dfe6dc6..f2895d0a5f8 100644 --- a/net/sunrpc/cache.c +++ b/net/sunrpc/cache.c @@ -105,18 +105,16 @@ EXPORT_SYMBOL_GPL(sunrpc_cache_lookup); static void cache_dequeue(struct cache_detail *detail, struct cache_head *ch); -static int cache_fresh_locked(struct cache_head *head, time_t expiry) +static void cache_fresh_locked(struct cache_head *head, time_t expiry) { head->expiry_time = expiry; head->last_refresh = get_seconds(); - return !test_and_set_bit(CACHE_VALID, &head->flags); + set_bit(CACHE_VALID, &head->flags); } static void cache_fresh_unlocked(struct cache_head *head, - struct cache_detail *detail, int new) + struct cache_detail *detail) { - if (new) - cache_revisit_request(head); if (test_and_clear_bit(CACHE_PENDING, &head->flags)) { cache_revisit_request(head); cache_dequeue(detail, head); @@ -132,7 +130,6 @@ struct cache_head *sunrpc_cache_update(struct cache_detail *detail, */ struct cache_head **head; struct cache_head *tmp; - int is_new; if (!test_bit(CACHE_VALID, &old->flags)) { write_lock(&detail->hash_lock); @@ -141,9 +138,9 @@ struct cache_head *sunrpc_cache_update(struct cache_detail *detail, set_bit(CACHE_NEGATIVE, &old->flags); else detail->update(old, new); - is_new = cache_fresh_locked(old, new->expiry_time); + cache_fresh_locked(old, new->expiry_time); write_unlock(&detail->hash_lock); - cache_fresh_unlocked(old, detail, is_new); + cache_fresh_unlocked(old, detail); return old; } write_unlock(&detail->hash_lock); @@ -167,11 +164,11 @@ struct cache_head *sunrpc_cache_update(struct cache_detail *detail, *head = tmp; detail->entries++; cache_get(tmp); - is_new = cache_fresh_locked(tmp, new->expiry_time); + cache_fresh_locked(tmp, new->expiry_time); cache_fresh_locked(old, 0); write_unlock(&detail->hash_lock); - cache_fresh_unlocked(tmp, detail, is_new); - cache_fresh_unlocked(old, detail, 0); + cache_fresh_unlocked(tmp, detail); + cache_fresh_unlocked(old, detail); cache_put(old, detail); return tmp; } @@ -240,8 +237,8 @@ int cache_check(struct cache_detail *detail, cache_revisit_request(h); if (rv == -EAGAIN) { set_bit(CACHE_NEGATIVE, &h->flags); - cache_fresh_unlocked(h, detail, - cache_fresh_locked(h, get_seconds()+CACHE_NEW_EXPIRY)); + cache_fresh_locked(h, get_seconds()+CACHE_NEW_EXPIRY); + cache_fresh_unlocked(h, detail); rv = -ENOENT; } break; -- cgit v1.2.3