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authorAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>2011-01-29 18:43:40 +0530
committerAl Viro <viro@zeniv.linux.org.uk>2011-03-15 02:21:45 -0400
commitf2fa2ffc2046fdc35f96366d1ec8675f4d578522 (patch)
treeb1215682f5fbb99cf975cee3fb827909ee4a1c97
parent03cb5f03dcb26846fcad345d8c15aae91579a53d (diff)
ext4: 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>
-rw-r--r--fs/ext4/super.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index f6a318f836b2..5977b356a435 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -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);