tree 8949e898cd4e87d63b6752ae8dfa36e1b461da77
parent 9b54d816e00425c3a517514e0d677bb3cec49258
author Jens Axboe <axboe@fb.com> 1486050880 -0700
committer Jens Axboe <axboe@fb.com> 1486140452 -0700

blk-merge: return the merged request

When we attempt to merge request-to-request, we return a 0/1 if we
ended up merging or not. Change that to return the pointer to the
request that we freed. We will use this to move the freeing of
that request out of the merge logic, so that callers can drop
locks before freeing the request.

There should be no functional changes in this patch.

Signed-off-by: Jens Axboe <axboe@fb.com>
Reviewed-by: Omar Sandoval <osandov@fb.com>