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authorJosef Bacik <jbacik@fb.com>2017-01-19 16:08:49 -0500
committerJens Axboe <axboe@fb.com>2017-01-19 14:31:50 -0700
commitd61b7f972dab2a7d187c38254845546dfc8eed85 (patch)
treec9ee8c99e826639db76b38e5f8ed142e4cb1412f /net/wireless/ocb.c
parent88a7503376f4f3bf303c809d1a389739e1205614 (diff)
nbd: only set MSG_MORE when we have more to send
A user noticed that write performance was horrible over loopback and we traced it to an inversion of when we need to set MSG_MORE. It should be set when we have more bvec's to send, not when we are on the last bvec. This patch made the test go from 20 iops to 78k iops. Signed-off-by: Josef Bacik <jbacik@fb.com> Fixes: 429a787be679 ("nbd: fix use-after-free of rq/bio in the xmit path") Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'net/wireless/ocb.c')
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