Btrfs: check to see if root_list is empty before adding it to dead roots
authorJosef Bacik <jbacik@fusionio.com>
Thu, 25 Jul 2013 19:11:47 +0000 (15:11 -0400)
committerChris Mason <chris.mason@fusionio.com>
Fri, 9 Aug 2013 23:30:23 +0000 (19:30 -0400)
commitcfad392b22163eba71d882950e17d2c4d43b2bad
tree7a3807402e20389d22975e87291ad05a4f98665d
parentf3b15ccdbb9a79781578249a63318805e55a6c34
Btrfs: check to see if root_list is empty before adding it to dead roots

A user reported a panic when running with autodefrag and deleting snapshots.
This is because we could end up trying to add the root to the dead roots list
twice.  To fix this check to see if we are empty before adding ourselves to the
dead roots list.  Thanks,

Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
fs/btrfs/transaction.c
fs/btrfs/transaction.h