tree def0ed5a9e31acce04fbe9690a2c8adfab80d6eb
parent 24f8ebe9189c91f1b3ecfaadd27ef0cb7c74907f
author Jan Schmidt <list.btrfs@jan-o-sch.net> 1359354360 -0700
committer Chris Mason <chris.mason@fusionio.com> 1360160680 -0500

Btrfs: fix EDQUOT handling in btrfs_delalloc_reserve_metadata

When btrfs_qgroup_reserve returned a failure, we were missing a counter
operation for BTRFS_I(inode)->outstanding_extents++, leading to warning
messages about outstanding extents and space_info->bytes_may_use != 0.
Additionally, the error handling code didn't take into account that we
dropped the inode lock which might require more cleanup.

Luckily, all the cleanup code we need is already there and can be shared
with reserve_metadata_bytes, which is exactly what this patch does.

Reported-by: Lev Vainblat <lev@zadarastorage.com>
Signed-off-by: Jan Schmidt <list.btrfs@jan-o-sch.net>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>