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NFS: Block new writes while syncing data in nfs_getattr()
author
Trond Myklebust
<trond.myklebust@primarydata.com>
Wed, 25 Mar 2015 20:40:07 +0000
(16:40 -0400)
committer
Trond Myklebust
<trond.myklebust@primarydata.com>
Fri, 27 Mar 2015 16:39:39 +0000
(12:39 -0400)
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
fs/nfs/inode.c
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diff --git
a/fs/nfs/inode.c
b/fs/nfs/inode.c
index
f1fc0e4
..
0c3be26
100644
(file)
--- a/
fs/nfs/inode.c
+++ b/
fs/nfs/inode.c
@@
-649,7
+649,9
@@
int nfs_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat)
trace_nfs_getattr_enter(inode);
/* Flush out writes to the server in order to update c/mtime. */
if (S_ISREG(inode->i_mode)) {
+ mutex_lock(&inode->i_mutex);
err = nfs_sync_inode(inode);
+ mutex_unlock(&inode->i_mutex);
if (err)
goto out;
}