ext3: Copy fs UUID to superblock.

File system UUID is made available to application
via  /proc/<pid>/mountinfo

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

diff --git a/fs/ext3/super.c b/fs/ext3/super.c
index 85c8cc8f24732c59c52943b6b8810780c2e94428..9cc19a1dea8ecb4276715bc920f02956290f74f7 100644 (file)
--- a/fs/ext3/super.c
+++ b/fs/ext3/super.c
@@ -1936,6 +1936,7 @@ static int ext3_fill_super (struct super_block *sb, void *data, int silent)
        sb->s_qcop = &ext3_qctl_operations;
        sb->dq_op = &ext3_quota_operations;
 #endif
+       memcpy(sb->s_uuid, es->s_uuid, sizeof(es->s_uuid));
        INIT_LIST_HEAD(&sbi->s_orphan); /* unlinked but open files */
        mutex_init(&sbi->s_orphan_lock);
        mutex_init(&sbi->s_resize_lock);