NFSv4: Fix the sync mount option for nfs4 mounts

[linux-imx.git] / fs / nfs / super.c

diff --git a/fs/nfs/super.c b/fs/nfs/super.c
index 71fdc0dfa0d28d9e293cbb58729d63395af7cc99..f6db66d8f647069a4cffde4e609bc7f23e3a2da0 100644 (file)
--- 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)) {