From: Lars Ellenberg Date: Tue, 22 Feb 2011 13:02:31 +0000 (+0100) Subject: drbd: fix a wrong likely(), updated comments X-Git-Tag: firefly_0821_release~3680^2~1419^2~18^2~444 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=9676c760979371701ea5a6f8adb7ce8125c22c7d;p=firefly-linux-kernel-4.4.55.git drbd: fix a wrong likely(), updated comments Signed-off-by: Philipp Reisner Signed-off-by: Lars Ellenberg --- diff --git a/drivers/block/drbd/drbd_worker.c b/drivers/block/drbd/drbd_worker.c index 01ab0bc0cd9e..8ee5c4f3d1c5 100644 --- a/drivers/block/drbd/drbd_worker.c +++ b/drivers/block/drbd/drbd_worker.c @@ -295,6 +295,7 @@ void drbd_csum_bio(struct drbd_conf *mdev, struct crypto_hash *tfm, struct bio * crypto_hash_final(&desc, digest); } +/* MAYBE merge common code with w_e_end_ov_req */ static int w_e_send_csum(struct drbd_work *w, int cancel) { struct drbd_peer_request *peer_req = container_of(w, struct drbd_peer_request, w); @@ -306,7 +307,7 @@ static int w_e_send_csum(struct drbd_work *w, int cancel) if (unlikely(cancel)) goto out; - if (likely((peer_req->flags & EE_WAS_ERROR) != 0)) + if (unlikely((peer_req->flags & EE_WAS_ERROR) != 0)) goto out; digest_size = crypto_hash_digestsize(mdev->csums_tfm); @@ -315,7 +316,7 @@ static int w_e_send_csum(struct drbd_work *w, int cancel) sector_t sector = peer_req->i.sector; unsigned int size = peer_req->i.size; drbd_csum_ee(mdev, mdev->csums_tfm, peer_req, digest); - /* Free e and pages before send. + /* Free peer_req and pages before send. * In case we block on congestion, we could otherwise run into * some distributed deadlock, if the other side blocks on * congestion as well, because our receiver blocks in @@ -1151,11 +1152,11 @@ int w_e_end_ov_reply(struct drbd_work *w, int cancel) } } - /* Free e and pages before send. - * In case we block on congestion, we could otherwise run into - * some distributed deadlock, if the other side blocks on - * congestion as well, because our receiver blocks in - * drbd_pp_alloc due to pp_in_use > max_buffers. */ + /* Free peer_req and pages before send. + * In case we block on congestion, we could otherwise run into + * some distributed deadlock, if the other side blocks on + * congestion as well, because our receiver blocks in + * drbd_pp_alloc due to pp_in_use > max_buffers. */ drbd_free_ee(mdev, peer_req); if (!eq) drbd_ov_oos_found(mdev, sector, size);