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NFS: do_setlk(): don't flush caches when we have a delegation
author
Trond Myklebust
<Trond.Myklebust@netapp.com>
Tue, 10 Jun 2008 22:31:02 +0000
(18:31 -0400)
committer
Trond Myklebust
<Trond.Myklebust@netapp.com>
Wed, 9 Jul 2008 16:08:50 +0000
(12:08 -0400)
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
fs/nfs/file.c
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diff --git
a/fs/nfs/file.c
b/fs/nfs/file.c
index 7ac89a845a5eb454c109bd089b9a473be217c8e8..0213c21038fa0c1a1f5afc3b5c9ad1e4487bd9f9 100644
(file)
--- a/
fs/nfs/file.c
+++ b/
fs/nfs/file.c
@@
-602,7
+602,8
@@
static int do_setlk(struct file *filp, int cmd, struct file_lock *fl)
* This makes locking act as a cache coherency point.
*/
nfs_sync_mapping(filp->f_mapping);
- nfs_zap_caches(inode);
+ if (!nfs_have_delegation(inode, FMODE_READ))
+ nfs_zap_caches(inode);
out:
return status;
}
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