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From: Kinglong Mee <kinglongmee-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
To: "J. Bruce Fields"
	<bfields-uC3wQj2KruNg9hUCZPvPmw@public.gmane.org>,
	linux-fsdevel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	"linux-nfs-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
	<linux-nfs-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>
Cc: Al Viro <viro-RmSDqhL/yNMiFSDQTTA3OLVCufUGDwFn@public.gmane.org>,
	NeilBrown <neilb-l3A5Bk7waGM@public.gmane.org>,
	Trond Myklebust
	<trond.myklebust-7I+n7zu2hftEKMMhf/gKZA@public.gmane.org>,
	kinglongmee-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org
Subject: [PATCH 3/4] sunrpc: New helper cache_force_expire for cache cleanup
Date: Wed, 06 May 2015 21:20:41 +0800	[thread overview]
Message-ID: <554A1529.4050100@gmail.com> (raw)
In-Reply-To: <554A149B.5060102-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>

Using expiry_time force cleanup a cache.

Signed-off-by: Kinglong Mee <kinglongmee-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
---
 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);
-- 
2.4.0

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  parent reply	other threads:[~2015-05-06 13:20 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-05-06 13:18 [PATCH 0/4] NFSD: Pin to vfsmount instead of mntget for export cache Kinglong Mee
     [not found] ` <554A149B.5060102-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2015-05-06 13:19   ` [PATCH 1/4] fs_pin: Fix uninitialized value in fs_pin Kinglong Mee
2015-05-07 19:43     ` J. Bruce Fields
     [not found]       ` <20150507194335.GA16527-uC3wQj2KruNg9hUCZPvPmw@public.gmane.org>
2015-05-08  0:36         ` Kinglong Mee
2015-05-06 13:19   ` [PATCH 2/4] fs_pin: Export functions for specific filesystem Kinglong Mee
2015-05-06 13:20   ` Kinglong Mee [this message]
2015-05-06 13:21   ` [PATCH 4/4] nfsd: Pin to vfsmnt instead of mntget Kinglong Mee
2015-05-08  4:40     ` NeilBrown
2015-05-08 13:47       ` J. Bruce Fields
2015-05-11 13:08         ` Kinglong Mee
     [not found]           ` <5550A9DF.1070908-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2015-05-13  4:25             ` NeilBrown
2015-05-13 12:30               ` Kinglong Mee
     [not found]                 ` <555343CA.6010307-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2015-05-13 12:55                   ` Kinglong Mee
     [not found]               ` <20150513142515.6bd881c8-wvvUuzkyo1EYVZTmpyfIwg@public.gmane.org>
2015-05-15 21:11                 ` J. Bruce Fields
2015-05-15 23:23                   ` NeilBrown
2015-05-22 15:02                     ` Kinglong Mee
2015-05-22 16:03                       ` J. Bruce Fields
2015-05-15 21:09             ` J. Bruce Fields

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