path: root/fs/nfs/super.c
diff options
authorScott Mayhew <smayhew@redhat.com>2013-07-31 10:01:41 -0400
committerTrond Myklebust <Trond.Myklebust@netapp.com>2013-08-07 17:07:41 -0400
commite890db0104826742818cbfb8fdb3000a38a9b97c (patch)
treebe8b8793e85409be1f4de08cd94152cd0947c687 /fs/nfs/super.c
parentf8806c843f88a6b7d657cf24c3682bc2efda6fdb (diff)
NFSv4: Fix the sync mount option for nfs4 mounts
The sync mount option stopped working for NFSv4 mounts after commit c02d7adf8c5429727a98bad1d039bccad4c61c50 (NFSv4: Replace nfs4_path_walk() with FS path lookup in a private namespace). If MS_SYNCHRONOUS is set in the super_block that we're cloning from, then it should be set in the new super_block as well. Signed-off-by: Scott Mayhew <smayhew@redhat.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'fs/nfs/super.c')
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/nfs/super.c b/fs/nfs/super.c
index 71fdc0dfa0d2..f6db66d8f647 100644
--- a/fs/nfs/super.c
+++ b/fs/nfs/super.c
@@ -2478,6 +2478,10 @@ struct dentry *nfs_fs_mount_common(struct nfs_server *server,
if (server->flags & NFS_MOUNT_NOAC)
sb_mntdata.mntflags |= MS_SYNCHRONOUS;
+ if (mount_info->cloned != NULL && mount_info->cloned->sb != NULL)
+ if (mount_info->cloned->sb->s_flags & MS_SYNCHRONOUS)
+ sb_mntdata.mntflags |= MS_SYNCHRONOUS;
/* Get a superblock - note that we may end up sharing one that already exists */
s = sget(nfs_mod->nfs_fs, compare_super, nfs_set_super, flags, &sb_mntdata);
if (IS_ERR(s)) {