commit 93f1c20bc8cdb757be50566eff88d65c3b26881f
author Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Sat Jan 29 18:43:38 2011 +0530
committer Al Viro <viro@zeniv.linux.org.uk> Tue Mar 15 02:21:45 2011 -0400
tree 15e812c8127ddd795b8112f76832f6411953be62
parent a51571ccb8be1b88aea502ebba8350519682c16d

vfs: Export file system uuid via /proc/<pid>/mountinfo

We add a per superblock uuid field. File systems should
update the uuid in the fill_super callback

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

include/linux/fs.h

diff --git a/include/linux/fs.h b/include/linux/fs.h
index 3f64630..f2143e0 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1408,6 +1408,7 @@
 	wait_queue_head_t	s_wait_unfrozen;
 
 	char s_id[32];				/* Informational name */
+	u8 s_uuid[16];				/* UUID */
 
 	void 			*s_fs_info;	/* Filesystem private info */
 	fmode_t			s_mode;