tree 2d892e37dc250abeb5ea43b0329b38c7f22485df
parent a7164fa4e055daf6368cb68ed946aa5a362a1a75
author Jeff Mahoney <jeffm@suse.com> 1498139507 -0400
committer David Sterba <dsterba@suse.com> 1502892725 +0200

btrfs: account for pinned bytes in should_alloc_chunk

In a heavy write scenario, we can end up with a large number of pinned bytes.
This can translate into (very) premature ENOSPC because pinned bytes
must be accounted for when allowing a reservation but aren't accounted for
when deciding whether to create a new chunk.

This patch adds the accounting to should_alloc_chunk so that we can
create the chunk.

Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>