fs/9p: Mark file system with MS_SYNCHRONOUS only if it is not cached mode

We should not mark file system synchronous if mounted cache=* option

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>

diff --git a/fs/9p/vfs_super.c b/fs/9p/vfs_super.c
index 4f14be585d6cd3ecc111a3a298dfce3edc6e54e8..76f867cf23f804a5d6485992e6dc1fd3ed4beb48 100644 (file)
--- a/fs/9p/vfs_super.c
+++ b/fs/9p/vfs_super.c
@@ -87,8 +87,9 @@ v9fs_fill_super(struct super_block *sb, struct v9fs_session_info *v9ses,
                sb->s_op = &v9fs_super_ops;
        sb->s_bdi = &v9ses->bdi;
 
-       sb->s_flags = flags | MS_ACTIVE | MS_SYNCHRONOUS | MS_DIRSYNC |
-           MS_NOATIME;
+       sb->s_flags = flags | MS_ACTIVE | MS_DIRSYNC | MS_NOATIME;
+       if (!v9ses->cache)
+               sb->s_flags |= MS_SYNCHRONOUS;
 
 #ifdef CONFIG_9P_FS_POSIX_ACL
        if ((v9ses->flags & V9FS_ACL_MASK) == V9FS_POSIX_ACL)