2015-03-27 17:08:44

by Trond Myklebust

[permalink] [raw]
Subject: [PATCH] NFS: Block new writes while syncing data in nfs_getattr()

Signed-off-by: Trond Myklebust <[email protected]>
---
fs/nfs/inode.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index f1fc0e4c1c02..0c3be2658546 100644
--- 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;
}
--
2.1.0