Commit f2fa2ffc authored by Aneesh Kumar K.V's avatar Aneesh Kumar K.V Committed by Al Viro
Browse files

ext4: Copy fs UUID to superblock 



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

Signed-off-by: default avatarAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
parent 03cb5f03

fs/ext4/super.c

+2 −0
Original line number Diff line number Diff line
@@ -3415,6 +3415,8 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent) 
	sb->s_qcop = &ext4_qctl_operations;

	sb->dq_op = &ext4_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);