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Btrfs: handle quota reserve failure properly

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btrfs/022 was spitting a warning for the case that we exceed the quota.  If we
fail to make our quota reservation we need to clean up our data space
reservation.  Thanks,

Signed-off-by: Josef Bacik <jbacik@fb.com>
Tested-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Chris Mason <clm@fb.com>
This commit is contained in:
Josef Bacik 2016-09-15 14:57:48 -04:00 committed by Chris Mason
parent b7f3c7d345
commit 1e5ec2e709
1 changed files with 3 additions and 6 deletions
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9
fs/btrfs/extent-tree.c
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@ -4271,13 +4271,10 @@ int btrfs_check_data_free_space(struct inode *inode, u64 start, u64 len)
if (ret < 0) if (ret < 0)
return ret; return ret;
/* /* Use new btrfs_qgroup_reserve_data to reserve precious data space. */
* Use new btrfs_qgroup_reserve_data to reserve precious data space
*
* TODO: Find a good method to avoid reserve data space for NOCOW
* range, but don't impact performance on quota disable case.
*/
ret = btrfs_qgroup_reserve_data(inode, start, len); ret = btrfs_qgroup_reserve_data(inode, start, len);
if (ret)
btrfs_free_reserved_data_space_noquota(inode, start, len);
return ret; return ret;
} }