From 7fae55da38e810c75b97cc56380aa6f735504216 Mon Sep 17 00:00:00 2001 From: Andreas Gruenbacher Date: Wed, 16 Mar 2011 11:46:33 +0100 Subject: [PATCH] drbd: _drbd_send_bio(), _drbd_send_zc_bio(): Return 0 upon success and an error code otherwise Signed-off-by: Philipp Reisner Signed-off-by: Lars Ellenberg --- drivers/block/drbd/drbd_main.c | 30 ++++++++++++++++++------------ 1 file changed, 18 insertions(+), 12 deletions(-) diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c index 8fee2fe4c853..77c957ff7a0e 100644 --- a/drivers/block/drbd/drbd_main.c +++ b/drivers/block/drbd/drbd_main.c @@ -1473,12 +1473,15 @@ static int _drbd_send_bio(struct drbd_conf *mdev, struct bio *bio) int i; /* hint all but last page with MSG_MORE */ __bio_for_each_segment(bvec, bio, i, 0) { - if (_drbd_no_send_page(mdev, bvec->bv_page, - bvec->bv_offset, bvec->bv_len, - i == bio->bi_vcnt -1 ? 0 : MSG_MORE)) - return 0; + int err; + + err = _drbd_no_send_page(mdev, bvec->bv_page, + bvec->bv_offset, bvec->bv_len, + i == bio->bi_vcnt - 1 ? 0 : MSG_MORE); + if (err) + return err; } - return 1; + return 0; } static int _drbd_send_zc_bio(struct drbd_conf *mdev, struct bio *bio) @@ -1487,12 +1490,15 @@ static int _drbd_send_zc_bio(struct drbd_conf *mdev, struct bio *bio) int i; /* hint all but last page with MSG_MORE */ __bio_for_each_segment(bvec, bio, i, 0) { - if (_drbd_send_page(mdev, bvec->bv_page, - bvec->bv_offset, bvec->bv_len, - i == bio->bi_vcnt -1 ? 0 : MSG_MORE)) - return 0; + int err; + + err = _drbd_send_page(mdev, bvec->bv_page, + bvec->bv_offset, bvec->bv_len, + i == bio->bi_vcnt - 1 ? 0 : MSG_MORE); + if (err) + return err; } - return 1; + return 0; } static int _drbd_send_zc_ee(struct drbd_conf *mdev, @@ -1576,9 +1582,9 @@ int drbd_send_dblock(struct drbd_conf *mdev, struct drbd_request *req) * receiving side, we sure have detected corruption elsewhere. */ if (mdev->tconn->net_conf->wire_protocol == DRBD_PROT_A || dgs) - ok = _drbd_send_bio(mdev, req->master_bio); + ok = !_drbd_send_bio(mdev, req->master_bio); else - ok = _drbd_send_zc_bio(mdev, req->master_bio); + ok = !_drbd_send_zc_bio(mdev, req->master_bio); /* double check digest, sometimes buffers have been modified in flight. */ if (dgs > 0 && dgs <= 64) { -- 2.20.1