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authorNeilBrown <neilb@suse.de>2010-02-03 17:31:31 +1100
committerJ. Bruce Fields <bfields@citi.umich.edu>2010-03-14 18:08:37 -0400
commit2f50d8b63dd6e5320a9d223298df19df3502da29 (patch)
treec1b9aa6c882151bcdadd994233d7b8f33a43b9fb /net/sunrpc
parent3af4974eb2c7867d6e160977195dfde586d0e564 (diff)
downloadop-kernel-dev-2f50d8b63dd6e5320a9d223298df19df3502da29.zip
op-kernel-dev-2f50d8b63dd6e5320a9d223298df19df3502da29.tar.gz
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')
-rw-r--r--net/sunrpc/cache.c13
1 files changed, 8 insertions, 5 deletions
diff --git a/net/sunrpc/cache.c b/net/sunrpc/cache.c
index 83592e0..9826c5c 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;
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