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drbd: fix a wrong likely(), updated comments

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Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
This commit is contained in:
Lars Ellenberg 2011-02-22 14:02:31 +01:00 committed by Philipp Reisner
parent c9d963a46d
commit 9676c76097
1 changed files with 8 additions and 7 deletions
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15
drivers/block/drbd/drbd_worker.c
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@ -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);