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authorJosef Bacik <josef@redhat.com>2010-10-22 15:26:53 -0400
committerJosef Bacik <josef@redhat.com>2010-10-22 15:55:03 -0400
commit0e78340f3c1fc603e8016c8ac304766bcc65506e (patch)
treea86dfd1d78a577e8d799e90f105ccfdc881dec0a /block
parent8bb8ab2e93f9c3c9453e13be0f37d344a32a3a6d (diff)
Btrfs: fix error handling in btrfs_get_sb
If we failed to find the root subvol id, or the subvol=<name>, we would deactivate the locked super and close the devices. The problem is at this point we have gotten the SB all setup, which includes setting super_operations, so when we'd deactiveate the super, we'd do a close_ctree() which closes the devices, so we'd end up closing the devices twice. So if you do something like this mount /dev/sda1 /mnt/test1 mount /dev/sda1 /mnt/test2 -o subvol=xxx umount /mnt/test1 it would blow up (if subvol xxx doesn't exist). This patch fixes that problem. Thanks, Signed-off-by: Josef Bacik <josef@redhat.com>
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