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path: root/drivers/block/drbd/drbd_req.c
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Diffstat (limited to 'drivers/block/drbd/drbd_req.c')
-rw-r--r--drivers/block/drbd/drbd_req.c47
1 files changed, 8 insertions, 39 deletions
diff --git a/drivers/block/drbd/drbd_req.c b/drivers/block/drbd/drbd_req.c
index 3907202fb..211592682 100644
--- a/drivers/block/drbd/drbd_req.c
+++ b/drivers/block/drbd/drbd_req.c
@@ -201,7 +201,8 @@ void start_new_tl_epoch(struct drbd_connection *connection)
void complete_master_bio(struct drbd_device *device,
struct bio_and_error *m)
{
- bio_endio(m->bio, m->error);
+ m->bio->bi_error = m->error;
+ bio_endio(m->bio);
dec_ap_bio(device);
}
@@ -1153,12 +1154,12 @@ drbd_submit_req_private_bio(struct drbd_request *req)
rw == WRITE ? DRBD_FAULT_DT_WR
: rw == READ ? DRBD_FAULT_DT_RD
: DRBD_FAULT_DT_RA))
- bio_endio(bio, -EIO);
+ bio_io_error(bio);
else
generic_make_request(bio);
put_ldev(device);
} else
- bio_endio(bio, -EIO);
+ bio_io_error(bio);
}
static void drbd_queue_write(struct drbd_device *device, struct drbd_request *req)
@@ -1191,7 +1192,8 @@ drbd_request_prepare(struct drbd_device *device, struct bio *bio, unsigned long
/* only pass the error to the upper layers.
* if user cannot handle io errors, that's not our business. */
drbd_err(device, "could not kmalloc() req\n");
- bio_endio(bio, -ENOMEM);
+ bio->bi_error = -ENOMEM;
+ bio_endio(bio);
return ERR_PTR(-ENOMEM);
}
req->start_jif = start_jif;
@@ -1497,6 +1499,8 @@ void drbd_make_request(struct request_queue *q, struct bio *bio)
struct drbd_device *device = (struct drbd_device *) q->queuedata;
unsigned long start_jif;
+ blk_queue_split(q, &bio, q->bio_split);
+
start_jif = jiffies;
/*
@@ -1508,41 +1512,6 @@ void drbd_make_request(struct request_queue *q, struct bio *bio)
__drbd_make_request(device, bio, start_jif);
}
-/* This is called by bio_add_page().
- *
- * q->max_hw_sectors and other global limits are already enforced there.
- *
- * We need to call down to our lower level device,
- * in case it has special restrictions.
- *
- * We also may need to enforce configured max-bio-bvecs limits.
- *
- * As long as the BIO is empty we have to allow at least one bvec,
- * regardless of size and offset, so no need to ask lower levels.
- */
-int drbd_merge_bvec(struct request_queue *q, struct bvec_merge_data *bvm, struct bio_vec *bvec)
-{
- struct drbd_device *device = (struct drbd_device *) q->queuedata;
- unsigned int bio_size = bvm->bi_size;
- int limit = DRBD_MAX_BIO_SIZE;
- int backing_limit;
-
- if (bio_size && get_ldev(device)) {
- unsigned int max_hw_sectors = queue_max_hw_sectors(q);
- struct request_queue * const b =
- device->ldev->backing_bdev->bd_disk->queue;
- if (b->merge_bvec_fn) {
- bvm->bi_bdev = device->ldev->backing_bdev;
- backing_limit = b->merge_bvec_fn(b, bvm, bvec);
- limit = min(limit, backing_limit);
- }
- put_ldev(device);
- if ((limit >> 9) > max_hw_sectors)
- limit = max_hw_sectors << 9;
- }
- return limit;
-}
-
void request_timer_fn(unsigned long data)
{
struct drbd_device *device = (struct drbd_device *) data;