tree fad46576765b99267f7906de13343886f8a5a361
parent 0f0fe8f710f29dbd4b2c915fc1c36962e4957b3b
author Josef Bacik <jbacik@fusionio.com> 1375715721 -0400
committer Chris Mason <chris.mason@fusionio.com> 1378037087 -0400

Btrfs: handle errors when doing slow caching

Alex Lyakas reported a bug where wait_block_group_cache_progress() would wait
forever if a drive failed.  This is because we just bail out if there is an
error while trying to cache a block group, we don't update anybody who may be
waiting.  So this introduces a new enum for the cache state in case of error and
makes everybody bail out if we have an error.  Alex tested and verified this
patch fixed his problem.  This fixes bz 59431.  Thanks,

Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>