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authorStanislav Kinsbursky <skinsbursky@parallels.com>2011-11-25 18:13:12 +0400
committerTrond Myklebust <Trond.Myklebust@netapp.com>2012-02-01 03:20:26 +0400
commit9df69c81b469780b64f9b26bb87c048613fdeddf (patch)
tree76dc666bf8b8b18c2e3b628159d6a85e5cffa62b /fs/nfs/cache_lib.h
parent1b340d0118da1d7c60c664f17d7c8fce2bb1cd9d (diff)
downloadlinux-9df69c81b469780b64f9b26bb87c048613fdeddf.tar.xz
NFS: DNS resolver PipeFS notifier introduced
This patch subscribes DNS resolver caches to RPC pipefs notifications. Notifier is registering on NFS module load. This notifier callback is responsible for creation/destruction of PipeFS DNS resolver cache directory. Note that no locking required in notifier callback because PipeFS superblock pointer is passed as an argument from it's creation or destruction routine and thus we can be sure about it's validity. Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'fs/nfs/cache_lib.h')
-rw-r--r--fs/nfs/cache_lib.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/nfs/cache_lib.h b/fs/nfs/cache_lib.h
index e0a6cc4b01b9..317db95e37f8 100644
--- a/fs/nfs/cache_lib.h
+++ b/fs/nfs/cache_lib.h
@@ -27,3 +27,7 @@ extern void nfs_cache_init(struct cache_detail *cd);
extern void nfs_cache_destroy(struct cache_detail *cd);
extern int nfs_cache_register_net(struct net *net, struct cache_detail *cd);
extern void nfs_cache_unregister_net(struct net *net, struct cache_detail *cd);
+extern int nfs_cache_register_sb(struct super_block *sb,
+ struct cache_detail *cd);
+extern void nfs_cache_unregister_sb(struct super_block *sb,
+ struct cache_detail *cd);