| commit | 5b094d6dac0451ad89b1dc088395c7b399b7e9e8 | [log] [tgz] |
|---|---|---|
| author | Christoph Hellwig <hch@lst.de> | Tue Jul 18 11:16:51 2017 -0700 |
| committer | Darrick J. Wong <darrick.wong@oracle.com> | Wed Jul 26 08:20:03 2017 -0700 |
| tree | 83ef91fc22af5f57c4f08902ec92b3d432d0f1b9 | |
| parent | 6215894e11de224183c89b001f5363912442b489 [diff] |
xfs: fix multi-AG deadlock in xfs_bunmapi Just like in the allocator we must avoid touching multiple AGs out of order when freeing blocks, as freeing still locks the AGF and can cause the same AB-BA deadlocks as in the allocation path. Signed-off-by: Christoph Hellwig <hch@lst.de> Reported-by: Nikolay Borisov <n.borisov.lkml@gmail.com> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>