tree 4dd5c24f6ebb9e4adb4ab920a6bdd99531e1300c
parent 14ef1e48269dde9b78efe4b112fa78e9ced72bc1
author Christoph Hellwig <hch@lst.de> 1496475482 +0200
committer Jens Axboe <axboe@fb.com> 1497022052 -0600

dm: don't return errnos from ->map

Instead use the special DM_MAPIO_KILL return value to return -EIO just
like we do for the request based path.  Note that dm-log-writes returned
-ENOMEM in a few places, which now becomes -EIO instead.  No consumer
treats -ENOMEM special so this shouldn't be an issue (and it should
use a mempool to start with to make guaranteed progress).

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Jens Axboe <axboe@fb.com>