md: pass mddev to make_request functions rather than request_queue
We used to pass the personality make_request function direct
to the block layer so the first argument had to be a queue.
But now we have the intermediary md_make_request so it makes
at lot more sense to pass a struct mddev_s.
It makes it possible to have an mddev without its own queue too.
Signed-off-by: NeilBrown <neilb@suse.de>
diff --git a/drivers/md/faulty.c b/drivers/md/faulty.c
index 608a8d3..bd4348f 100644
--- a/drivers/md/faulty.c
+++ b/drivers/md/faulty.c
@@ -168,9 +168,8 @@
conf->nfaults = n+1;
}
-static int make_request(struct request_queue *q, struct bio *bio)
+static int make_request(mddev_t *mddev, struct bio *bio)
{
- mddev_t *mddev = q->queuedata;
conf_t *conf = mddev->private;
int failit = 0;
diff --git a/drivers/md/linear.c b/drivers/md/linear.c
index 3048c17..3204a22 100644
--- a/drivers/md/linear.c
+++ b/drivers/md/linear.c
@@ -286,9 +286,8 @@
return 0;
}
-static int linear_make_request (struct request_queue *q, struct bio *bio)
+static int linear_make_request (mddev_t *mddev, struct bio *bio)
{
- mddev_t *mddev = q->queuedata;
dev_info_t *tmp_dev;
sector_t start_sector;
@@ -328,9 +327,9 @@
bp = bio_split(bio, end_sector - bio->bi_sector);
- if (linear_make_request(q, &bp->bio1))
+ if (linear_make_request(mddev, &bp->bio1))
generic_make_request(&bp->bio1);
- if (linear_make_request(q, &bp->bio2))
+ if (linear_make_request(mddev, &bp->bio2))
generic_make_request(&bp->bio2);
bio_pair_release(bp);
return 0;
diff --git a/drivers/md/md.c b/drivers/md/md.c
index f48ba41..2e05b0c 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -240,7 +240,7 @@
atomic_inc(&mddev->active_io);
rcu_read_unlock();
- rv = mddev->pers->make_request(q, bio);
+ rv = mddev->pers->make_request(mddev, bio);
cpu = part_stat_lock();
part_stat_inc(cpu, &mddev->gendisk->part0, ios[rw]);
@@ -354,7 +354,7 @@
bio_endio(bio, 0);
else {
bio->bi_rw &= ~(1<<BIO_RW_BARRIER);
- if (mddev->pers->make_request(mddev->queue, bio))
+ if (mddev->pers->make_request(mddev, bio))
generic_make_request(bio);
mddev->barrier = POST_REQUEST_BARRIER;
submit_barriers(mddev);
diff --git a/drivers/md/md.h b/drivers/md/md.h
index 3225e25..a536f54 100644
--- a/drivers/md/md.h
+++ b/drivers/md/md.h
@@ -330,7 +330,7 @@
int level;
struct list_head list;
struct module *owner;
- int (*make_request)(struct request_queue *q, struct bio *bio);
+ int (*make_request)(mddev_t *mddev, struct bio *bio);
int (*run)(mddev_t *mddev);
int (*stop)(mddev_t *mddev);
void (*status)(struct seq_file *seq, mddev_t *mddev);
diff --git a/drivers/md/multipath.c b/drivers/md/multipath.c
index 5b4e291..50bf8e6 100644
--- a/drivers/md/multipath.c
+++ b/drivers/md/multipath.c
@@ -135,9 +135,8 @@
}
-static int multipath_make_request (struct request_queue *q, struct bio * bio)
+static int multipath_make_request(mddev_t *mddev, struct bio * bio)
{
- mddev_t *mddev = q->queuedata;
multipath_conf_t *conf = mddev->private;
struct multipath_bh * mp_bh;
struct multipath_info *multipath;
diff --git a/drivers/md/raid0.c b/drivers/md/raid0.c
index d535f9b..9f9c6b7 100644
--- a/drivers/md/raid0.c
+++ b/drivers/md/raid0.c
@@ -465,9 +465,8 @@
}
}
-static int raid0_make_request(struct request_queue *q, struct bio *bio)
+static int raid0_make_request(mddev_t *mddev, struct bio *bio)
{
- mddev_t *mddev = q->queuedata;
unsigned int chunk_sects;
sector_t sector_offset;
struct strip_zone *zone;
@@ -495,9 +494,9 @@
else
bp = bio_split(bio, chunk_sects -
sector_div(sector, chunk_sects));
- if (raid0_make_request(q, &bp->bio1))
+ if (raid0_make_request(mddev, &bp->bio1))
generic_make_request(&bp->bio1);
- if (raid0_make_request(q, &bp->bio2))
+ if (raid0_make_request(mddev, &bp->bio2))
generic_make_request(&bp->bio2);
bio_pair_release(bp);
diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index eebce16..5ff75c4 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -773,9 +773,8 @@
return NULL;
}
-static int make_request(struct request_queue *q, struct bio * bio)
+static int make_request(mddev_t *mddev, struct bio * bio)
{
- mddev_t *mddev = q->queuedata;
conf_t *conf = mddev->private;
mirror_info_t *mirror;
r1bio_t *r1_bio;
diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
index ca313d6..a1d72761 100644
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -788,9 +788,8 @@
spin_unlock_irq(&conf->resync_lock);
}
-static int make_request(struct request_queue *q, struct bio * bio)
+static int make_request(mddev_t *mddev, struct bio * bio)
{
- mddev_t *mddev = q->queuedata;
conf_t *conf = mddev->private;
mirror_info_t *mirror;
r10bio_t *r10_bio;
@@ -824,9 +823,9 @@
*/
bp = bio_split(bio,
chunk_sects - (bio->bi_sector & (chunk_sects - 1)) );
- if (make_request(q, &bp->bio1))
+ if (make_request(mddev, &bp->bio1))
generic_make_request(&bp->bio1);
- if (make_request(q, &bp->bio2))
+ if (make_request(mddev, &bp->bio2))
generic_make_request(&bp->bio2);
bio_pair_release(bp);
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index 231afda..2882a26 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -3753,9 +3753,8 @@
}
-static int chunk_aligned_read(struct request_queue *q, struct bio * raid_bio)
+static int chunk_aligned_read(mddev_t *mddev, struct bio * raid_bio)
{
- mddev_t *mddev = q->queuedata;
raid5_conf_t *conf = mddev->private;
int dd_idx;
struct bio* align_bi;
@@ -3870,9 +3869,8 @@
return sh;
}
-static int make_request(struct request_queue *q, struct bio * bi)
+static int make_request(mddev_t *mddev, struct bio * bi)
{
- mddev_t *mddev = q->queuedata;
raid5_conf_t *conf = mddev->private;
int dd_idx;
sector_t new_sector;
@@ -3896,7 +3894,7 @@
if (rw == READ &&
mddev->reshape_position == MaxSector &&
- chunk_aligned_read(q,bi))
+ chunk_aligned_read(mddev,bi))
return 0;
logical_sector = bi->bi_sector & ~((sector_t)STRIPE_SECTORS-1);