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-rw-r--r--drivers/md/dm.c25
-rw-r--r--drivers/md/faulty.c14
-rw-r--r--drivers/md/linear.c17
-rw-r--r--drivers/md/md.c12
-rw-r--r--drivers/md/md.h2
-rw-r--r--drivers/md/multipath.c8
-rw-r--r--drivers/md/raid0.c22
-rw-r--r--drivers/md/raid1.c9
-rw-r--r--drivers/md/raid10.c19
-rw-r--r--drivers/md/raid5.c8
10 files changed, 53 insertions, 83 deletions
diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index 6b6616a41ba..4720f68f817 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -192,9 +192,6 @@ struct mapped_device {
/* forced geometry settings */
struct hd_geometry geometry;
- /* For saving the address of __make_request for request based dm */
- make_request_fn *saved_make_request_fn;
-
/* sysfs handle */
struct kobject kobj;
@@ -1403,7 +1400,7 @@ out:
* The request function that just remaps the bio built up by
* dm_merge_bvec.
*/
-static int _dm_request(struct request_queue *q, struct bio *bio)
+static void _dm_request(struct request_queue *q, struct bio *bio)
{
int rw = bio_data_dir(bio);
struct mapped_device *md = q->queuedata;
@@ -1424,19 +1421,12 @@ static int _dm_request(struct request_queue *q, struct bio *bio)
queue_io(md, bio);
else
bio_io_error(bio);
- return 0;
+ return;
}
__split_and_process_bio(md, bio);
up_read(&md->io_lock);
- return 0;
-}
-
-static int dm_make_request(struct request_queue *q, struct bio *bio)
-{
- struct mapped_device *md = q->queuedata;
-
- return md->saved_make_request_fn(q, bio); /* call __make_request() */
+ return;
}
static int dm_request_based(struct mapped_device *md)
@@ -1444,14 +1434,14 @@ static int dm_request_based(struct mapped_device *md)
return blk_queue_stackable(md->queue);
}
-static int dm_request(struct request_queue *q, struct bio *bio)
+static void dm_request(struct request_queue *q, struct bio *bio)
{
struct mapped_device *md = q->queuedata;
if (dm_request_based(md))
- return dm_make_request(q, bio);
-
- return _dm_request(q, bio);
+ blk_queue_bio(q, bio);
+ else
+ _dm_request(q, bio);
}
void dm_dispatch_request(struct request *rq)
@@ -2191,7 +2181,6 @@ static int dm_init_request_based_queue(struct mapped_device *md)
return 0;
md->queue = q;
- md->saved_make_request_fn = md->queue->make_request_fn;
dm_init_md_queue(md);
blk_queue_softirq_done(md->queue, dm_softirq_done);
blk_queue_prep_rq(md->queue, dm_prep_fn);
diff --git a/drivers/md/faulty.c b/drivers/md/faulty.c
index 60816b132c2..918fb8ac660 100644
--- a/drivers/md/faulty.c
+++ b/drivers/md/faulty.c
@@ -169,7 +169,7 @@ static void add_sector(struct faulty_conf *conf, sector_t start, int mode)
conf->nfaults = n+1;
}
-static int make_request(struct mddev *mddev, struct bio *bio)
+static void make_request(struct mddev *mddev, struct bio *bio)
{
struct faulty_conf *conf = mddev->private;
int failit = 0;
@@ -181,7 +181,7 @@ static int make_request(struct mddev *mddev, struct bio *bio)
* just fail immediately
*/
bio_endio(bio, -EIO);
- return 0;
+ return;
}
if (check_sector(conf, bio->bi_sector, bio->bi_sector+(bio->bi_size>>9),
@@ -211,15 +211,15 @@ static int make_request(struct mddev *mddev, struct bio *bio)
}
if (failit) {
struct bio *b = bio_clone_mddev(bio, GFP_NOIO, mddev);
+
b->bi_bdev = conf->rdev->bdev;
b->bi_private = bio;
b->bi_end_io = faulty_fail;
- generic_make_request(b);
- return 0;
- } else {
+ bio = b;
+ } else
bio->bi_bdev = conf->rdev->bdev;
- return 1;
- }
+
+ generic_make_request(bio);
}
static void status(struct seq_file *seq, struct mddev *mddev)
diff --git a/drivers/md/linear.c b/drivers/md/linear.c
index 10c5844460c..a8203586751 100644
--- a/drivers/md/linear.c
+++ b/drivers/md/linear.c
@@ -264,14 +264,14 @@ static int linear_stop (struct mddev *mddev)
return 0;
}
-static int linear_make_request (struct mddev *mddev, struct bio *bio)
+static void linear_make_request(struct mddev *mddev, struct bio *bio)
{
struct dev_info *tmp_dev;
sector_t start_sector;
if (unlikely(bio->bi_rw & REQ_FLUSH)) {
md_flush_request(mddev, bio);
- return 0;
+ return;
}
rcu_read_lock();
@@ -293,7 +293,7 @@ static int linear_make_request (struct mddev *mddev, struct bio *bio)
(unsigned long long)start_sector);
rcu_read_unlock();
bio_io_error(bio);
- return 0;
+ return;
}
if (unlikely(bio->bi_sector + (bio->bi_size >> 9) >
tmp_dev->end_sector)) {
@@ -307,20 +307,17 @@ static int linear_make_request (struct mddev *mddev, struct bio *bio)
bp = bio_split(bio, end_sector - bio->bi_sector);
- if (linear_make_request(mddev, &bp->bio1))
- generic_make_request(&bp->bio1);
- if (linear_make_request(mddev, &bp->bio2))
- generic_make_request(&bp->bio2);
+ linear_make_request(mddev, &bp->bio1);
+ linear_make_request(mddev, &bp->bio2);
bio_pair_release(bp);
- return 0;
+ return;
}
bio->bi_bdev = tmp_dev->rdev->bdev;
bio->bi_sector = bio->bi_sector - start_sector
+ tmp_dev->rdev->data_offset;
rcu_read_unlock();
-
- return 1;
+ generic_make_request(bio);
}
static void linear_status (struct seq_file *seq, struct mddev *mddev)
diff --git a/drivers/md/md.c b/drivers/md/md.c
index 266e82ebaf1..2acb32827fd 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -332,18 +332,17 @@ static DEFINE_SPINLOCK(all_mddevs_lock);
* call has finished, the bio has been linked into some internal structure
* and so is visible to ->quiesce(), so we don't need the refcount any more.
*/
-static int md_make_request(struct request_queue *q, struct bio *bio)
+static void md_make_request(struct request_queue *q, struct bio *bio)
{
const int rw = bio_data_dir(bio);
struct mddev *mddev = q->queuedata;
- int rv;
int cpu;
unsigned int sectors;
if (mddev == NULL || mddev->pers == NULL
|| !mddev->ready) {
bio_io_error(bio);
- return 0;
+ return;
}
smp_rmb(); /* Ensure implications of 'active' are visible */
rcu_read_lock();
@@ -368,7 +367,7 @@ static int md_make_request(struct request_queue *q, struct bio *bio)
* go away inside make_request
*/
sectors = bio_sectors(bio);
- rv = mddev->pers->make_request(mddev, bio);
+ mddev->pers->make_request(mddev, bio);
cpu = part_stat_lock();
part_stat_inc(cpu, &mddev->gendisk->part0, ios[rw]);
@@ -377,8 +376,6 @@ static int md_make_request(struct request_queue *q, struct bio *bio)
if (atomic_dec_and_test(&mddev->active_io) && mddev->suspended)
wake_up(&mddev->sb_wait);
-
- return rv;
}
/* mddev_suspend makes sure no new requests are submitted
@@ -477,8 +474,7 @@ static void md_submit_flush_data(struct work_struct *ws)
bio_endio(bio, 0);
else {
bio->bi_rw &= ~REQ_FLUSH;
- if (mddev->pers->make_request(mddev, bio))
- generic_make_request(bio);
+ mddev->pers->make_request(mddev, bio);
}
mddev->flush_bio = NULL;
diff --git a/drivers/md/md.h b/drivers/md/md.h
index 51c1d91557e..cf742d9306e 100644
--- a/drivers/md/md.h
+++ b/drivers/md/md.h
@@ -419,7 +419,7 @@ struct md_personality
int level;
struct list_head list;
struct module *owner;
- int (*make_request)(struct mddev *mddev, struct bio *bio);
+ void (*make_request)(struct mddev *mddev, struct bio *bio);
int (*run)(struct mddev *mddev);
int (*stop)(struct mddev *mddev);
void (*status)(struct seq_file *seq, struct mddev *mddev);
diff --git a/drivers/md/multipath.c b/drivers/md/multipath.c
index d32c785e17d..ad20a28fbf2 100644
--- a/drivers/md/multipath.c
+++ b/drivers/md/multipath.c
@@ -106,7 +106,7 @@ static void multipath_end_request(struct bio *bio, int error)
rdev_dec_pending(rdev, conf->mddev);
}
-static int multipath_make_request(struct mddev *mddev, struct bio * bio)
+static void multipath_make_request(struct mddev *mddev, struct bio * bio)
{
struct mpconf *conf = mddev->private;
struct multipath_bh * mp_bh;
@@ -114,7 +114,7 @@ static int multipath_make_request(struct mddev *mddev, struct bio * bio)
if (unlikely(bio->bi_rw & REQ_FLUSH)) {
md_flush_request(mddev, bio);
- return 0;
+ return;
}
mp_bh = mempool_alloc(conf->pool, GFP_NOIO);
@@ -126,7 +126,7 @@ static int multipath_make_request(struct mddev *mddev, struct bio * bio)
if (mp_bh->path < 0) {
bio_endio(bio, -EIO);
mempool_free(mp_bh, conf->pool);
- return 0;
+ return;
}
multipath = conf->multipaths + mp_bh->path;
@@ -137,7 +137,7 @@ static int multipath_make_request(struct mddev *mddev, struct bio * bio)
mp_bh->bio.bi_end_io = multipath_end_request;
mp_bh->bio.bi_private = mp_bh;
generic_make_request(&mp_bh->bio);
- return 0;
+ return;
}
static void multipath_status (struct seq_file *seq, struct mddev *mddev)
diff --git a/drivers/md/raid0.c b/drivers/md/raid0.c
index 0eb08a4df75..27e19e2b51d 100644
--- a/drivers/md/raid0.c
+++ b/drivers/md/raid0.c
@@ -468,7 +468,7 @@ static inline int is_io_in_chunk_boundary(struct mddev *mddev,
}
}
-static int raid0_make_request(struct mddev *mddev, struct bio *bio)
+static void raid0_make_request(struct mddev *mddev, struct bio *bio)
{
unsigned int chunk_sects;
sector_t sector_offset;
@@ -477,7 +477,7 @@ static int raid0_make_request(struct mddev *mddev, struct bio *bio)
if (unlikely(bio->bi_rw & REQ_FLUSH)) {
md_flush_request(mddev, bio);
- return 0;
+ return;
}
chunk_sects = mddev->chunk_sectors;
@@ -497,13 +497,10 @@ static int raid0_make_request(struct mddev *mddev, struct bio *bio)
else
bp = bio_split(bio, chunk_sects -
sector_div(sector, chunk_sects));
- if (raid0_make_request(mddev, &bp->bio1))
- generic_make_request(&bp->bio1);
- if (raid0_make_request(mddev, &bp->bio2))
- generic_make_request(&bp->bio2);
-
+ raid0_make_request(mddev, &bp->bio1);
+ raid0_make_request(mddev, &bp->bio2);
bio_pair_release(bp);
- return 0;
+ return;
}
sector_offset = bio->bi_sector;
@@ -513,10 +510,9 @@ static int raid0_make_request(struct mddev *mddev, struct bio *bio)
bio->bi_bdev = tmp_dev->bdev;
bio->bi_sector = sector_offset + zone->dev_start +
tmp_dev->data_offset;
- /*
- * Let the main block layer submit the IO and resolve recursion:
- */
- return 1;
+
+ generic_make_request(bio);
+ return;
bad_map:
printk("md/raid0:%s: make_request bug: can't convert block across chunks"
@@ -525,7 +521,7 @@ bad_map:
(unsigned long long)bio->bi_sector, bio->bi_size >> 10);
bio_io_error(bio);
- return 0;
+ return;
}
static void raid0_status(struct seq_file *seq, struct mddev *mddev)
diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index 4602fc57c96..cae874646d9 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -807,7 +807,7 @@ do_sync_io:
pr_debug("%dB behind alloc failed, doing sync I/O\n", bio->bi_size);
}
-static int make_request(struct mddev *mddev, struct bio * bio)
+static void make_request(struct mddev *mddev, struct bio * bio)
{
struct r1conf *conf = mddev->private;
struct mirror_info *mirror;
@@ -892,7 +892,7 @@ read_again:
if (rdisk < 0) {
/* couldn't find anywhere to read from */
raid_end_bio_io(r1_bio);
- return 0;
+ return;
}
mirror = conf->mirrors + rdisk;
@@ -950,7 +950,7 @@ read_again:
goto read_again;
} else
generic_make_request(read_bio);
- return 0;
+ return;
}
/*
@@ -1151,8 +1151,6 @@ read_again:
if (do_sync || !bitmap || !plugged)
md_wakeup_thread(mddev->thread);
-
- return 0;
}
static void status(struct seq_file *seq, struct mddev *mddev)
@@ -2193,7 +2191,6 @@ static sector_t sync_request(struct mddev *mddev, sector_t sector_nr, int *skipp
bio->bi_next = NULL;
bio->bi_flags &= ~(BIO_POOL_MASK-1);
bio->bi_flags |= 1 << BIO_UPTODATE;
- bio->bi_comp_cpu = -1;
bio->bi_rw = READ;
bio->bi_vcnt = 0;
bio->bi_idx = 0;
diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
index c025a8276dc..dde6dd4b47e 100644
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -842,7 +842,7 @@ static void unfreeze_array(struct r10conf *conf)
spin_unlock_irq(&conf->resync_lock);
}
-static int make_request(struct mddev *mddev, struct bio * bio)
+static void make_request(struct mddev *mddev, struct bio * bio)
{
struct r10conf *conf = mddev->private;
struct mirror_info *mirror;
@@ -861,7 +861,7 @@ static int make_request(struct mddev *mddev, struct bio * bio)
if (unlikely(bio->bi_rw & REQ_FLUSH)) {
md_flush_request(mddev, bio);
- return 0;
+ return;
}
/* If this request crosses a chunk boundary, we need to
@@ -893,10 +893,8 @@ static int make_request(struct mddev *mddev, struct bio * bio)
conf->nr_waiting++;
spin_unlock_irq(&conf->resync_lock);
- if (make_request(mddev, &bp->bio1))
- generic_make_request(&bp->bio1);
- if (make_request(mddev, &bp->bio2))
- generic_make_request(&bp->bio2);
+ make_request(mddev, &bp->bio1);
+ make_request(mddev, &bp->bio2);
spin_lock_irq(&conf->resync_lock);
conf->nr_waiting--;
@@ -904,14 +902,14 @@ static int make_request(struct mddev *mddev, struct bio * bio)
spin_unlock_irq(&conf->resync_lock);
bio_pair_release(bp);
- return 0;
+ return;
bad_map:
printk("md/raid10:%s: make_request bug: can't convert block across chunks"
" or bigger than %dk %llu %d\n", mdname(mddev), chunk_sects/2,
(unsigned long long)bio->bi_sector, bio->bi_size >> 10);
bio_io_error(bio);
- return 0;
+ return;
}
md_write_start(mddev, bio);
@@ -954,7 +952,7 @@ read_again:
slot = r10_bio->read_slot;
if (disk < 0) {
raid_end_bio_io(r10_bio);
- return 0;
+ return;
}
mirror = conf->mirrors + disk;
@@ -1002,7 +1000,7 @@ read_again:
goto read_again;
} else
generic_make_request(read_bio);
- return 0;
+ return;
}
/*
@@ -1176,7 +1174,6 @@ retry_write:
if (do_sync || !mddev->bitmap || !plugged)
md_wakeup_thread(mddev->thread);
- return 0;
}
static void status(struct seq_file *seq, struct mddev *mddev)
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index f6fe053a5be..bb1b46143fb 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -3688,7 +3688,7 @@ static struct stripe_head *__get_priority_stripe(struct r5conf *conf)
return sh;
}
-static int make_request(struct mddev *mddev, struct bio * bi)
+static void make_request(struct mddev *mddev, struct bio * bi)
{
struct r5conf *conf = mddev->private;
int dd_idx;
@@ -3701,7 +3701,7 @@ static int make_request(struct mddev *mddev, struct bio * bi)
if (unlikely(bi->bi_rw & REQ_FLUSH)) {
md_flush_request(mddev, bi);
- return 0;
+ return;
}
md_write_start(mddev, bi);
@@ -3709,7 +3709,7 @@ static int make_request(struct mddev *mddev, struct bio * bi)
if (rw == READ &&
mddev->reshape_position == MaxSector &&
chunk_aligned_read(mddev,bi))
- return 0;
+ return;
logical_sector = bi->bi_sector & ~((sector_t)STRIPE_SECTORS-1);
last_sector = bi->bi_sector + (bi->bi_size>>9);
@@ -3844,8 +3844,6 @@ static int make_request(struct mddev *mddev, struct bio * bi)
bio_endio(bi, 0);
}
-
- return 0;
}
static sector_t raid5_size(struct mddev *mddev, sector_t sectors, int raid_disks);
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-29 05:00:44 +0000