Messages in this thread Patch in this message | | | From | Philipp Reisner <> | Subject | [PATCH 32/54] drbd: _drbd_send_bio(), _drbd_send_zc_bio(): Return 0 upon success and an error code otherwise | Date | Mon, 5 Sep 2011 13:45:23 +0200 |
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From: Andreas Gruenbacher <agruen@linbit.com>
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_main.c | 30 ++++++++++++++++++------------ 1 files changed, 18 insertions(+), 12 deletions(-)
diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c index 9b53d86..a12cd82 100644 --- a/drivers/block/drbd/drbd_main.c +++ b/drivers/block/drbd/drbd_main.c @@ -1475,12 +1475,15 @@ 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) @@ -1489,12 +1492,15 @@ 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, @@ -1578,9 +1584,9 @@ 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) { -- 1.7.4.1
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