2015-06-02 01:26:44

by Kinglong Mee

[permalink] [raw]
Subject: [PATCH 4/5 v3] sunrpc: New helper cache_force_expire for cache cleanup

Using expiry_time force cleanup a cache.

v3: same as v1.

Signed-off-by: Kinglong Mee <[email protected]>
---
include/linux/sunrpc/cache.h | 11 +++++++++++
1 file changed, 11 insertions(+)

diff --git a/include/linux/sunrpc/cache.h b/include/linux/sunrpc/cache.h
index 437ddb6..ce75e9c 100644
--- a/include/linux/sunrpc/cache.h
+++ b/include/linux/sunrpc/cache.h
@@ -210,6 +210,17 @@ extern int cache_check(struct cache_detail *detail,
struct cache_head *h, struct cache_req *rqstp);
extern void cache_flush(void);
extern void cache_purge(struct cache_detail *detail);
+
+static inline void cache_force_expire(struct cache_detail *detail, struct cache_head *h)
+{
+ write_lock(&detail->hash_lock);
+ h->expiry_time = seconds_since_boot() - 1;
+ detail->nextcheck = seconds_since_boot();
+ write_unlock(&detail->hash_lock);
+
+ cache_flush();
+}
+
#define NEVER (0x7FFFFFFF)
extern void __init cache_initialize(void);
extern int cache_register_net(struct cache_detail *cd, struct net *net);
--
2.4.2