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NFS: Block new writes while syncing data in nfs_getattr()
authorTrond Myklebust <trond.myklebust@primarydata.com>
Wed, 25 Mar 2015 20:40:07 +0000 (16:40 -0400)
committerTrond 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 patch | blob | blame | history

diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index f1fc0e4c1c023ab6a656d8d83f8256b338520974..0c3be2658546f1e1b88397c180a0063313d30e0c 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;
        }