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NFS: Optimise away nfs_check_inode_attributes() when holding a delegation
author
Trond Myklebust
<Trond.Myklebust@netapp.com>
Sun, 29 Apr 2012 16:30:19 +0000
(12:30 -0400)
committer
Trond Myklebust
<Trond.Myklebust@netapp.com>
Tue, 1 May 2012 19:42:41 +0000
(15:42 -0400)
We already know that the attribute cache is valid.
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
fs/nfs/inode.c
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diff --git
a/fs/nfs/inode.c
b/fs/nfs/inode.c
index
fed27c0
..
81946e7
100644
(file)
--- a/
fs/nfs/inode.c
+++ b/
fs/nfs/inode.c
@@
-955,6
+955,8
@@
static int nfs_check_inode_attributes(struct inode *inode, struct nfs_fattr *fat
unsigned long invalid = 0;
+ if (nfs_have_delegated_attributes(inode))
+ return 0;
/* Has the inode gone and changed behind our back? */
if ((fattr->valid & NFS_ATTR_FATTR_FILEID) && nfsi->fileid != fattr->fileid)
return -EIO;