diff options
| author | Philipp Reisner <philipp.reisner@linbit.com> | 2010-11-09 17:45:06 +0100 |
|---|---|---|
| committer | Philipp Reisner <philipp.reisner@linbit.com> | 2011-03-10 11:34:57 +0100 |
| commit | aeda1cd6a58009ef21b6d9c09b1a3ded726c2d10 (patch) | |
| tree | bfe98db19ead95ce7021798b80299fe1942db42d /drivers/block | |
| parent | f91ab6282df251d28aa4ad1bd85194ebe0a0115b (diff) | |
drbd: Begin to account BIO processing time before inc_ap_bio()
Since inc_ap_bio() might sleep already
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_req.c | 12 | ||||
| -rw-r--r-- | drivers/block/drbd/drbd_req.h | 1 |
2 files changed, 8 insertions, 5 deletions
diff --git a/drivers/block/drbd/drbd_req.c b/drivers/block/drbd/drbd_req.c index a8d1ff2bda27..eff0fbf69dd4 100644 --- a/drivers/block/drbd/drbd_req.c +++ b/drivers/block/drbd/drbd_req.c @@ -757,7 +757,7 @@ static int drbd_may_do_local_read(struct drbd_conf *mdev, sector_t sector, int s return 0 == drbd_bm_count_bits(mdev, sbnr, ebnr); } -static int drbd_make_request_common(struct drbd_conf *mdev, struct bio *bio) +static int drbd_make_request_common(struct drbd_conf *mdev, struct bio *bio, unsigned long start_time) { const int rw = bio_rw(bio); const int size = bio->bi_size; @@ -778,6 +778,7 @@ static int drbd_make_request_common(struct drbd_conf *mdev, struct bio *bio) bio_endio(bio, -ENOMEM); return 0; } + req->start_time = start_time; local = get_ldev(mdev); if (!local) { @@ -1076,12 +1077,15 @@ int drbd_make_request_26(struct request_queue *q, struct bio *bio) { unsigned int s_enr, e_enr; struct drbd_conf *mdev = (struct drbd_conf *) q->queuedata; + unsigned long start_time; if (drbd_fail_request_early(mdev, bio_data_dir(bio) & WRITE)) { bio_endio(bio, -EPERM); return 0; } + start_time = jiffies; + /* * what we "blindly" assume: */ @@ -1096,7 +1100,7 @@ int drbd_make_request_26(struct request_queue *q, struct bio *bio) if (likely(s_enr == e_enr)) { inc_ap_bio(mdev, 1); - return drbd_make_request_common(mdev, bio); + return drbd_make_request_common(mdev, bio, start_time); } /* can this bio be split generically? @@ -1138,10 +1142,10 @@ int drbd_make_request_26(struct request_queue *q, struct bio *bio) D_ASSERT(e_enr == s_enr + 1); - while (drbd_make_request_common(mdev, &bp->bio1)) + while (drbd_make_request_common(mdev, &bp->bio1, start_time)) inc_ap_bio(mdev, 1); - while (drbd_make_request_common(mdev, &bp->bio2)) + while (drbd_make_request_common(mdev, &bp->bio2, start_time)) inc_ap_bio(mdev, 1); dec_ap_bio(mdev); diff --git a/drivers/block/drbd/drbd_req.h b/drivers/block/drbd/drbd_req.h index 40d3dcd8fc81..077c47b1e9d7 100644 --- a/drivers/block/drbd/drbd_req.h +++ b/drivers/block/drbd/drbd_req.h @@ -291,7 +291,6 @@ static inline struct drbd_request *drbd_req_new(struct drbd_conf *mdev, req->epoch = 0; req->sector = bio_src->bi_sector; req->size = bio_src->bi_size; - req->start_time = jiffies; INIT_HLIST_NODE(&req->colision); INIT_LIST_HEAD(&req->tl_requests); INIT_LIST_HEAD(&req->w.list); |