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| author | NeilBrown <neilb@suse.de> | 2010-02-03 17:31:31 +1100 |
|---|---|---|
| committer | J. Bruce Fields <bfields@citi.umich.edu> | 2010-03-14 18:08:37 -0400 |
| commit | 2f50d8b63dd6e5320a9d223298df19df3502da29 (patch) | |
| tree | c1b9aa6c882151bcdadd994233d7b8f33a43b9fb /net/sunrpc/cache.c | |
| parent | 3af4974eb2c7867d6e160977195dfde586d0e564 (diff) | |
| download | linux-2f50d8b63dd6e5320a9d223298df19df3502da29.tar.gz linux-2f50d8b63dd6e5320a9d223298df19df3502da29.tar.bz2 linux-2f50d8b63dd6e5320a9d223298df19df3502da29.zip | |
sunrpc/cache: factor out cache_is_expired
This removes a tiny bit of code duplication, but more important
prepares for following patch which will perform the expiry check in
cache_lookup and the rest of the validity check in cache_check.
Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Diffstat (limited to 'net/sunrpc/cache.c')
| -rw-r--r-- | net/sunrpc/cache.c | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/net/sunrpc/cache.c b/net/sunrpc/cache.c index 83592e012585..9826c5ceb995 100644 --- a/net/sunrpc/cache.c +++ b/net/sunrpc/cache.c @@ -49,6 +49,12 @@ static void cache_init(struct cache_head *h) h->last_refresh = now; } +static inline int cache_is_expired(struct cache_detail *detail, struct cache_head *h) +{ + return (h->expiry_time < get_seconds()) || + (detail->flush_time > h->last_refresh); +} + struct cache_head *sunrpc_cache_lookup(struct cache_detail *detail, struct cache_head *key, int hash) { @@ -184,9 +190,7 @@ static int cache_make_upcall(struct cache_detail *cd, struct cache_head *h) static inline int cache_is_valid(struct cache_detail *detail, struct cache_head *h) { if (!test_bit(CACHE_VALID, &h->flags) || - h->expiry_time < get_seconds()) - return -EAGAIN; - else if (detail->flush_time > h->last_refresh) + cache_is_expired(detail, h)) return -EAGAIN; else { /* entry is valid */ @@ -400,8 +404,7 @@ static int cache_clean(void) for (ch = *cp ; ch ; cp = & ch->next, ch = *cp) { if (current_detail->nextcheck > ch->expiry_time) current_detail->nextcheck = ch->expiry_time+1; - if (ch->expiry_time >= get_seconds() && - ch->last_refresh >= current_detail->flush_time) + if (!cache_is_expired(current_detail, ch)) continue; *cp = ch->next; |