tree a0e535bb31aba8e1998c2017086816f928820808
parent 25cf84cf377c0aae5dbcf937ea89bc7893db5176
author Dmitry Monakhov <dmonakhov@openvz.org> 1267586886 +0300
committer Jens Axboe <jens.axboe@oracle.com> 1268035838 +0100

blkdev: fix merge_bvec_fn return value checks v2

merge_bvec_fn() returns bvec->bv_len on success. So we have to check
against this value. But in case of fs_optimization merge we compare
with wrong value. This patch must be included in
 b428cd6da7e6559aca69aa2e3a526037d3f20403
But accidentally i've forgot to add this in the initial patch.
To make things straight let's replace all such checks.
In fact this makes code easy to understand.

Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>