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| author | Philipp Reisner <philipp.reisner@linbit.com> | 2011-03-01 17:52:35 +0300 |
|---|---|---|
| committer | Philipp Reisner <philipp.reisner@linbit.com> | 2011-03-10 13:48:18 +0300 |
| commit | 8f21420ebd5ca5a751e2f606b49b0acd2a2af314 (patch) | |
| tree | bf652362959fa629c17b1954b861783d894eb131 /drivers/block | |
| parent | 7fde2be93080c028c20078a2d6abec8a95891192 (diff) | |
| download | linux-8f21420ebd5ca5a751e2f606b49b0acd2a2af314.tar.xz | |
drbd: Fixed handling of read errors on a 'VerifyT' node
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
Diffstat (limited to 'drivers/block')
| -rw-r--r-- | drivers/block/drbd/drbd_worker.c | 28 |
1 files changed, 15 insertions, 13 deletions
diff --git a/drivers/block/drbd/drbd_worker.c b/drivers/block/drbd/drbd_worker.c index 3d70d8d015d9..7db29080f363 100644 --- a/drivers/block/drbd/drbd_worker.c +++ b/drivers/block/drbd/drbd_worker.c @@ -1081,25 +1081,27 @@ int w_e_end_ov_req(struct drbd_conf *mdev, struct drbd_work *w, int cancel) if (unlikely(cancel)) goto out; - if (unlikely((e->flags & EE_WAS_ERROR) != 0)) - goto out; - digest_size = crypto_hash_digestsize(mdev->verify_tfm); - /* FIXME if this allocation fails, online verify will not terminate! */ digest = kmalloc(digest_size, GFP_NOIO); - if (digest) { - drbd_csum_ee(mdev, mdev->verify_tfm, e, digest); - inc_rs_pending(mdev); - ok = drbd_send_drequest_csum(mdev, e->sector, e->size, - digest, digest_size, P_OV_REPLY); - if (!ok) - dec_rs_pending(mdev); - kfree(digest); + if (!digest) { + ok = 0; /* terminate the connection in case the allocation failed */ + goto out; } + if (likely(!(e->flags & EE_WAS_ERROR))) + drbd_csum_ee(mdev, mdev->verify_tfm, e, digest); + else + memset(digest, 0, digest_size); + + inc_rs_pending(mdev); + ok = drbd_send_drequest_csum(mdev, e->sector, e->size, + digest, digest_size, P_OV_REPLY); + if (!ok) + dec_rs_pending(mdev); + kfree(digest); + out: drbd_free_ee(mdev, e); - dec_unacked(mdev); return ok; |