summaryrefslogtreecommitdiff
path: root/drivers/md
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/md')
-rw-r--r--drivers/md/Kconfig2
-rw-r--r--drivers/md/dm-crypt.c2
-rw-r--r--drivers/md/dm-exception-store.c1
-rw-r--r--drivers/md/dm-mpath-rdac.c2
-rw-r--r--drivers/md/dm-raid1.c3
-rw-r--r--drivers/md/dm-table.c8
-rw-r--r--drivers/md/dm.c14
-rw-r--r--drivers/md/faulty.c2
-rw-r--r--drivers/md/linear.c14
-rw-r--r--drivers/md/md.c2
-rw-r--r--drivers/md/multipath.c12
-rw-r--r--drivers/md/raid0.c14
-rw-r--r--drivers/md/raid1.c37
-rw-r--r--drivers/md/raid10.c24
-rw-r--r--drivers/md/raid5.c43
15 files changed, 103 insertions, 77 deletions
diff --git a/drivers/md/Kconfig b/drivers/md/Kconfig
index 531d4d17d011..34a8c60a254a 100644
--- a/drivers/md/Kconfig
+++ b/drivers/md/Kconfig
@@ -263,7 +263,7 @@ config DM_MULTIPATH_EMC
config DM_MULTIPATH_RDAC
tristate "LSI/Engenio RDAC multipath support (EXPERIMENTAL)"
- depends on DM_MULTIPATH && BLK_DEV_DM && EXPERIMENTAL
+ depends on DM_MULTIPATH && BLK_DEV_DM && SCSI && EXPERIMENTAL
---help---
Multipath support for LSI/Engenio RDAC.
diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c
index ba952a032598..bdc52d6922b7 100644
--- a/drivers/md/dm-crypt.c
+++ b/drivers/md/dm-crypt.c
@@ -920,6 +920,8 @@ static void crypt_dtr(struct dm_target *ti)
{
struct crypt_config *cc = (struct crypt_config *) ti->private;
+ flush_workqueue(_kcryptd_workqueue);
+
bioset_free(cc->bs);
mempool_destroy(cc->page_pool);
mempool_destroy(cc->io_pool);
diff --git a/drivers/md/dm-exception-store.c b/drivers/md/dm-exception-store.c
index 3d65917a1bbb..8fe81e1807e0 100644
--- a/drivers/md/dm-exception-store.c
+++ b/drivers/md/dm-exception-store.c
@@ -623,6 +623,7 @@ int dm_create_persistent(struct exception_store *store)
ps->metadata_wq = create_singlethread_workqueue("ksnaphd");
if (!ps->metadata_wq) {
+ kfree(ps);
DMERR("couldn't start header metadata update thread");
return -ENOMEM;
}
diff --git a/drivers/md/dm-mpath-rdac.c b/drivers/md/dm-mpath-rdac.c
index 8b776b8cb7f7..16b161345775 100644
--- a/drivers/md/dm-mpath-rdac.c
+++ b/drivers/md/dm-mpath-rdac.c
@@ -292,7 +292,7 @@ static struct request *get_rdac_req(struct rdac_handler *h,
rq->end_io_data = h;
rq->timeout = h->timeout;
rq->cmd_type = REQ_TYPE_BLOCK_PC;
- rq->cmd_flags = REQ_FAILFAST | REQ_NOMERGE;
+ rq->cmd_flags |= REQ_FAILFAST | REQ_NOMERGE;
return rq;
}
diff --git a/drivers/md/dm-raid1.c b/drivers/md/dm-raid1.c
index 1a876f9965e0..144071e70a93 100644
--- a/drivers/md/dm-raid1.c
+++ b/drivers/md/dm-raid1.c
@@ -951,13 +951,12 @@ static struct mirror_set *alloc_context(unsigned int nr_mirrors,
len = sizeof(*ms) + (sizeof(ms->mirror[0]) * nr_mirrors);
- ms = kmalloc(len, GFP_KERNEL);
+ ms = kzalloc(len, GFP_KERNEL);
if (!ms) {
ti->error = "Cannot allocate mirror context";
return NULL;
}
- memset(ms, 0, len);
spin_lock_init(&ms->lock);
ms->ti = ti;
diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c
index 2fc199b0016b..2bcde5798b5a 100644
--- a/drivers/md/dm-table.c
+++ b/drivers/md/dm-table.c
@@ -526,7 +526,7 @@ static int __table_get_device(struct dm_table *t, struct dm_target *ti,
void dm_set_device_limits(struct dm_target *ti, struct block_device *bdev)
{
- request_queue_t *q = bdev_get_queue(bdev);
+ struct request_queue *q = bdev_get_queue(bdev);
struct io_restrictions *rs = &ti->limits;
/*
@@ -979,7 +979,7 @@ int dm_table_any_congested(struct dm_table *t, int bdi_bits)
devices = dm_table_get_devices(t);
for (d = devices->next; d != devices; d = d->next) {
struct dm_dev *dd = list_entry(d, struct dm_dev, list);
- request_queue_t *q = bdev_get_queue(dd->bdev);
+ struct request_queue *q = bdev_get_queue(dd->bdev);
r |= bdi_congested(&q->backing_dev_info, bdi_bits);
}
@@ -992,7 +992,7 @@ void dm_table_unplug_all(struct dm_table *t)
for (d = devices->next; d != devices; d = d->next) {
struct dm_dev *dd = list_entry(d, struct dm_dev, list);
- request_queue_t *q = bdev_get_queue(dd->bdev);
+ struct request_queue *q = bdev_get_queue(dd->bdev);
if (q->unplug_fn)
q->unplug_fn(q);
@@ -1011,7 +1011,7 @@ int dm_table_flush_all(struct dm_table *t)
for (d = devices->next; d != devices; d = d->next) {
struct dm_dev *dd = list_entry(d, struct dm_dev, list);
- request_queue_t *q = bdev_get_queue(dd->bdev);
+ struct request_queue *q = bdev_get_queue(dd->bdev);
int err;
if (!q->issue_flush_fn)
diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index 846614e676c6..2120155929a6 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -80,7 +80,7 @@ struct mapped_device {
unsigned long flags;
- request_queue_t *queue;
+ struct request_queue *queue;
struct gendisk *disk;
char name[16];
@@ -580,8 +580,8 @@ static void __map_bio(struct dm_target *ti, struct bio *clone,
/* the bio has been remapped so dispatch it */
blk_add_trace_remap(bdev_get_queue(clone->bi_bdev), clone,
- tio->io->bio->bi_bdev->bd_dev, sector,
- clone->bi_sector);
+ tio->io->bio->bi_bdev->bd_dev,
+ clone->bi_sector, sector);
generic_make_request(clone);
} else if (r < 0 || r == DM_MAPIO_REQUEUE) {
@@ -792,7 +792,7 @@ static void __split_bio(struct mapped_device *md, struct bio *bio)
* The request function that just remaps the bio built up by
* dm_merge_bvec.
*/
-static int dm_request(request_queue_t *q, struct bio *bio)
+static int dm_request(struct request_queue *q, struct bio *bio)
{
int r;
int rw = bio_data_dir(bio);
@@ -844,7 +844,7 @@ static int dm_request(request_queue_t *q, struct bio *bio)
return 0;
}
-static int dm_flush_all(request_queue_t *q, struct gendisk *disk,
+static int dm_flush_all(struct request_queue *q, struct gendisk *disk,
sector_t *error_sector)
{
struct mapped_device *md = q->queuedata;
@@ -859,7 +859,7 @@ static int dm_flush_all(request_queue_t *q, struct gendisk *disk,
return ret;
}
-static void dm_unplug_all(request_queue_t *q)
+static void dm_unplug_all(struct request_queue *q)
{
struct mapped_device *md = q->queuedata;
struct dm_table *map = dm_get_table(md);
@@ -1110,7 +1110,7 @@ static void __set_size(struct mapped_device *md, sector_t size)
static int __bind(struct mapped_device *md, struct dm_table *t)
{
- request_queue_t *q = md->queue;
+ struct request_queue *q = md->queue;
sector_t size;
size = dm_table_get_size(t);
diff --git a/drivers/md/faulty.c b/drivers/md/faulty.c
index 4ebd0f2a75ec..cb059cf14c2e 100644
--- a/drivers/md/faulty.c
+++ b/drivers/md/faulty.c
@@ -167,7 +167,7 @@ static void add_sector(conf_t *conf, sector_t start, int mode)
conf->nfaults = n+1;
}
-static int make_request(request_queue_t *q, struct bio *bio)
+static int make_request(struct request_queue *q, struct bio *bio)
{
mddev_t *mddev = q->queuedata;
conf_t *conf = (conf_t*)mddev->private;
diff --git a/drivers/md/linear.c b/drivers/md/linear.c
index 192741083196..17f795c3e0ab 100644
--- a/drivers/md/linear.c
+++ b/drivers/md/linear.c
@@ -55,7 +55,7 @@ static inline dev_info_t *which_dev(mddev_t *mddev, sector_t sector)
*
* Return amount of bytes we can take at this offset
*/
-static int linear_mergeable_bvec(request_queue_t *q, struct bio *bio, struct bio_vec *biovec)
+static int linear_mergeable_bvec(struct request_queue *q, struct bio *bio, struct bio_vec *biovec)
{
mddev_t *mddev = q->queuedata;
dev_info_t *dev0;
@@ -79,20 +79,20 @@ static int linear_mergeable_bvec(request_queue_t *q, struct bio *bio, struct bio
return maxsectors << 9;
}
-static void linear_unplug(request_queue_t *q)
+static void linear_unplug(struct request_queue *q)
{
mddev_t *mddev = q->queuedata;
linear_conf_t *conf = mddev_to_conf(mddev);
int i;
for (i=0; i < mddev->raid_disks; i++) {
- request_queue_t *r_queue = bdev_get_queue(conf->disks[i].rdev->bdev);
+ struct request_queue *r_queue = bdev_get_queue(conf->disks[i].rdev->bdev);
if (r_queue->unplug_fn)
r_queue->unplug_fn(r_queue);
}
}
-static int linear_issue_flush(request_queue_t *q, struct gendisk *disk,
+static int linear_issue_flush(struct request_queue *q, struct gendisk *disk,
sector_t *error_sector)
{
mddev_t *mddev = q->queuedata;
@@ -101,7 +101,7 @@ static int linear_issue_flush(request_queue_t *q, struct gendisk *disk,
for (i=0; i < mddev->raid_disks && ret == 0; i++) {
struct block_device *bdev = conf->disks[i].rdev->bdev;
- request_queue_t *r_queue = bdev_get_queue(bdev);
+ struct request_queue *r_queue = bdev_get_queue(bdev);
if (!r_queue->issue_flush_fn)
ret = -EOPNOTSUPP;
@@ -118,7 +118,7 @@ static int linear_congested(void *data, int bits)
int i, ret = 0;
for (i = 0; i < mddev->raid_disks && !ret ; i++) {
- request_queue_t *q = bdev_get_queue(conf->disks[i].rdev->bdev);
+ struct request_queue *q = bdev_get_queue(conf->disks[i].rdev->bdev);
ret |= bdi_congested(&q->backing_dev_info, bits);
}
return ret;
@@ -330,7 +330,7 @@ static int linear_stop (mddev_t *mddev)
return 0;
}
-static int linear_make_request (request_queue_t *q, struct bio *bio)
+static int linear_make_request (struct request_queue *q, struct bio *bio)
{
const int rw = bio_data_dir(bio);
mddev_t *mddev = q->queuedata;
diff --git a/drivers/md/md.c b/drivers/md/md.c
index 65ddc887dfd7..f883b7e37f3d 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -211,7 +211,7 @@ static DEFINE_SPINLOCK(all_mddevs_lock);
)
-static int md_fail_request (request_queue_t *q, struct bio *bio)
+static int md_fail_request (struct request_queue *q, struct bio *bio)
{
bio_io_error(bio, bio->bi_size);
return 0;
diff --git a/drivers/md/multipath.c b/drivers/md/multipath.c
index 14da37fee37b..1e2af43a73b9 100644
--- a/drivers/md/multipath.c
+++ b/drivers/md/multipath.c
@@ -125,7 +125,7 @@ static void unplug_slaves(mddev_t *mddev)
mdk_rdev_t *rdev = rcu_dereference(conf->multipaths[i].rdev);
if (rdev && !test_bit(Faulty, &rdev->flags)
&& atomic_read(&rdev->nr_pending)) {
- request_queue_t *r_queue = bdev_get_queue(rdev->bdev);
+ struct request_queue *r_queue = bdev_get_queue(rdev->bdev);
atomic_inc(&rdev->nr_pending);
rcu_read_unlock();
@@ -140,13 +140,13 @@ static void unplug_slaves(mddev_t *mddev)
rcu_read_unlock();
}
-static void multipath_unplug(request_queue_t *q)
+static void multipath_unplug(struct request_queue *q)
{
unplug_slaves(q->queuedata);
}
-static int multipath_make_request (request_queue_t *q, struct bio * bio)
+static int multipath_make_request (struct request_queue *q, struct bio * bio)
{
mddev_t *mddev = q->queuedata;
multipath_conf_t *conf = mddev_to_conf(mddev);
@@ -199,7 +199,7 @@ static void multipath_status (struct seq_file *seq, mddev_t *mddev)
seq_printf (seq, "]");
}
-static int multipath_issue_flush(request_queue_t *q, struct gendisk *disk,
+static int multipath_issue_flush(struct request_queue *q, struct gendisk *disk,
sector_t *error_sector)
{
mddev_t *mddev = q->queuedata;
@@ -211,7 +211,7 @@ static int multipath_issue_flush(request_queue_t *q, struct gendisk *disk,
mdk_rdev_t *rdev = rcu_dereference(conf->multipaths[i].rdev);
if (rdev && !test_bit(Faulty, &rdev->flags)) {
struct block_device *bdev = rdev->bdev;
- request_queue_t *r_queue = bdev_get_queue(bdev);
+ struct request_queue *r_queue = bdev_get_queue(bdev);
if (!r_queue->issue_flush_fn)
ret = -EOPNOTSUPP;
@@ -238,7 +238,7 @@ static int multipath_congested(void *data, int bits)
for (i = 0; i < mddev->raid_disks ; i++) {
mdk_rdev_t *rdev = rcu_dereference(conf->multipaths[i].rdev);
if (rdev && !test_bit(Faulty, &rdev->flags)) {
- request_queue_t *q = bdev_get_queue(rdev->bdev);
+ struct request_queue *q = bdev_get_queue(rdev->bdev);
ret |= bdi_congested(&q->backing_dev_info, bits);
/* Just like multipath_map, we just check the
diff --git a/drivers/md/raid0.c b/drivers/md/raid0.c
index 2c404f73a377..b8216bc6db45 100644
--- a/drivers/md/raid0.c
+++ b/drivers/md/raid0.c
@@ -25,7 +25,7 @@
#define MD_DRIVER
#define MD_PERSONALITY
-static void raid0_unplug(request_queue_t *q)
+static void raid0_unplug(struct request_queue *q)
{
mddev_t *mddev = q->queuedata;
raid0_conf_t *conf = mddev_to_conf(mddev);
@@ -33,14 +33,14 @@ static void raid0_unplug(request_queue_t *q)
int i;
for (i=0; i<mddev->raid_disks; i++) {
- request_queue_t *r_queue = bdev_get_queue(devlist[i]->bdev);
+ struct request_queue *r_queue = bdev_get_queue(devlist[i]->bdev);
if (r_queue->unplug_fn)
r_queue->unplug_fn(r_queue);
}
}
-static int raid0_issue_flush(request_queue_t *q, struct gendisk *disk,
+static int raid0_issue_flush(struct request_queue *q, struct gendisk *disk,
sector_t *error_sector)
{
mddev_t *mddev = q->queuedata;
@@ -50,7 +50,7 @@ static int raid0_issue_flush(request_queue_t *q, struct gendisk *disk,
for (i=0; i<mddev->raid_disks && ret == 0; i++) {
struct block_device *bdev = devlist[i]->bdev;
- request_queue_t *r_queue = bdev_get_queue(bdev);
+ struct request_queue *r_queue = bdev_get_queue(bdev);
if (!r_queue->issue_flush_fn)
ret = -EOPNOTSUPP;
@@ -68,7 +68,7 @@ static int raid0_congested(void *data, int bits)
int i, ret = 0;
for (i = 0; i < mddev->raid_disks && !ret ; i++) {
- request_queue_t *q = bdev_get_queue(devlist[i]->bdev);
+ struct request_queue *q = bdev_get_queue(devlist[i]->bdev);
ret |= bdi_congested(&q->backing_dev_info, bits);
}
@@ -268,7 +268,7 @@ static int create_strip_zones (mddev_t *mddev)
*
* Return amount of bytes we can accept at this offset
*/
-static int raid0_mergeable_bvec(request_queue_t *q, struct bio *bio, struct bio_vec *biovec)
+static int raid0_mergeable_bvec(struct request_queue *q, struct bio *bio, struct bio_vec *biovec)
{
mddev_t *mddev = q->queuedata;
sector_t sector = bio->bi_sector + get_start_sect(bio->bi_bdev);
@@ -408,7 +408,7 @@ static int raid0_stop (mddev_t *mddev)
return 0;
}
-static int raid0_make_request (request_queue_t *q, struct bio *bio)
+static int raid0_make_request (struct request_queue *q, struct bio *bio)
{
mddev_t *mddev = q->queuedata;
unsigned int sect_in_chunk, chunksize_bits, chunk_size, chunk_sects;
diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index 00c78b77b13d..f33a729960ca 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -552,7 +552,7 @@ static void unplug_slaves(mddev_t *mddev)
for (i=0; i<mddev->raid_disks; i++) {
mdk_rdev_t *rdev = rcu_dereference(conf->mirrors[i].rdev);
if (rdev && !test_bit(Faulty, &rdev->flags) && atomic_read(&rdev->nr_pending)) {
- request_queue_t *r_queue = bdev_get_queue(rdev->bdev);
+ struct request_queue *r_queue = bdev_get_queue(rdev->bdev);
atomic_inc(&rdev->nr_pending);
rcu_read_unlock();
@@ -567,7 +567,7 @@ static void unplug_slaves(mddev_t *mddev)
rcu_read_unlock();
}
-static void raid1_unplug(request_queue_t *q)
+static void raid1_unplug(struct request_queue *q)
{
mddev_t *mddev = q->queuedata;
@@ -575,7 +575,7 @@ static void raid1_unplug(request_queue_t *q)
md_wakeup_thread(mddev->thread);
}
-static int raid1_issue_flush(request_queue_t *q, struct gendisk *disk,
+static int raid1_issue_flush(struct request_queue *q, struct gendisk *disk,
sector_t *error_sector)
{
mddev_t *mddev = q->queuedata;
@@ -587,7 +587,7 @@ static int raid1_issue_flush(request_queue_t *q, struct gendisk *disk,
mdk_rdev_t *rdev = rcu_dereference(conf->mirrors[i].rdev);
if (rdev && !test_bit(Faulty, &rdev->flags)) {
struct block_device *bdev = rdev->bdev;
- request_queue_t *r_queue = bdev_get_queue(bdev);
+ struct request_queue *r_queue = bdev_get_queue(bdev);
if (!r_queue->issue_flush_fn)
ret = -EOPNOTSUPP;
@@ -615,7 +615,7 @@ static int raid1_congested(void *data, int bits)
for (i = 0; i < mddev->raid_disks; i++) {
mdk_rdev_t *rdev = rcu_dereference(conf->mirrors[i].rdev);
if (rdev && !test_bit(Faulty, &rdev->flags)) {
- request_queue_t *q = bdev_get_queue(rdev->bdev);
+ struct request_queue *q = bdev_get_queue(rdev->bdev);
/* Note the '|| 1' - when read_balance prefers
* non-congested targets, it can be removed
@@ -765,7 +765,7 @@ do_sync_io:
return NULL;
}
-static int make_request(request_queue_t *q, struct bio * bio)
+static int make_request(struct request_queue *q, struct bio * bio)
{
mddev_t *mddev = q->queuedata;
conf_t *conf = mddev_to_conf(mddev);
@@ -1972,7 +1972,8 @@ static int run(mddev_t *mddev)
!test_bit(In_sync, &disk->rdev->flags)) {
disk->head_position = 0;
mddev->degraded++;
- conf->fullsync = 1;
+ if (disk->rdev)
+ conf->fullsync = 1;
}
}
if (mddev->degraded == conf->raid_disks) {
@@ -2153,11 +2154,25 @@ static int raid1_reshape(mddev_t *mddev)
oldpool = conf->r1bio_pool;
conf->r1bio_pool = newpool;
- for (d=d2=0; d < conf->raid_disks; d++)
- if (conf->mirrors[d].rdev) {
- conf->mirrors[d].rdev->raid_disk = d2;
- newmirrors[d2++].rdev = conf->mirrors[d].rdev;
+ for (d = d2 = 0; d < conf->raid_disks; d++) {
+ mdk_rdev_t *rdev = conf->mirrors[d].rdev;
+ if (rdev && rdev->raid_disk != d2) {
+ char nm[20];
+ sprintf(nm, "rd%d", rdev->raid_disk);
+ sysfs_remove_link(&mddev->kobj, nm);
+ rdev->raid_disk = d2;
+ sprintf(nm, "rd%d", rdev->raid_disk);
+ sysfs_remove_link(&mddev->kobj, nm);
+ if (sysfs_create_link(&mddev->kobj,
+ &rdev->kobj, nm))
+ printk(KERN_WARNING
+ "md/raid1: cannot register "
+ "%s for %s\n",
+ nm, mdname(mddev));
}
+ if (rdev)
+ newmirrors[d2++].rdev = rdev;
+ }
kfree(conf->mirrors);
conf->mirrors = newmirrors;
kfree(conf->poolinfo);
diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
index a95ada1cfac4..4e53792aa520 100644
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -453,7 +453,7 @@ static sector_t raid10_find_virt(conf_t *conf, sector_t sector, int dev)
* If near_copies == raid_disk, there are no striping issues,
* but in that case, the function isn't called at all.
*/
-static int raid10_mergeable_bvec(request_queue_t *q, struct bio *bio,
+static int raid10_mergeable_bvec(struct request_queue *q, struct bio *bio,
struct bio_vec *bio_vec)
{
mddev_t *mddev = q->queuedata;
@@ -595,7 +595,7 @@ static void unplug_slaves(mddev_t *mddev)
for (i=0; i<mddev->raid_disks; i++) {
mdk_rdev_t *rdev = rcu_dereference(conf->mirrors[i].rdev);
if (rdev && !test_bit(Faulty, &rdev->flags) && atomic_read(&rdev->nr_pending)) {
- request_queue_t *r_queue = bdev_get_queue(rdev->bdev);
+ struct request_queue *r_queue = bdev_get_queue(rdev->bdev);
atomic_inc(&rdev->nr_pending);
rcu_read_unlock();
@@ -610,7 +610,7 @@ static void unplug_slaves(mddev_t *mddev)
rcu_read_unlock();
}
-static void raid10_unplug(request_queue_t *q)
+static void raid10_unplug(struct request_queue *q)
{
mddev_t *mddev = q->queuedata;
@@ -618,7 +618,7 @@ static void raid10_unplug(request_queue_t *q)
md_wakeup_thread(mddev->thread);
}
-static int raid10_issue_flush(request_queue_t *q, struct gendisk *disk,
+static int raid10_issue_flush(struct request_queue *q, struct gendisk *disk,
sector_t *error_sector)
{
mddev_t *mddev = q->queuedata;
@@ -630,7 +630,7 @@ static int raid10_issue_flush(request_queue_t *q, struct gendisk *disk,
mdk_rdev_t *rdev = rcu_dereference(conf->mirrors[i].rdev);
if (rdev && !test_bit(Faulty, &rdev->flags)) {
struct block_device *bdev = rdev->bdev;
- request_queue_t *r_queue = bdev_get_queue(bdev);
+ struct request_queue *r_queue = bdev_get_queue(bdev);
if (!r_queue->issue_flush_fn)
ret = -EOPNOTSUPP;
@@ -658,7 +658,7 @@ static int raid10_congested(void *data, int bits)
for (i = 0; i < mddev->raid_disks && ret == 0; i++) {
mdk_rdev_t *rdev = rcu_dereference(conf->mirrors[i].rdev);
if (rdev && !test_bit(Faulty, &rdev->flags)) {
- request_queue_t *q = bdev_get_queue(rdev->bdev);
+ struct request_queue *q = bdev_get_queue(rdev->bdev);
ret |= bdi_congested(&q->backing_dev_info, bits);
}
@@ -772,7 +772,7 @@ static void unfreeze_array(conf_t *conf)
spin_unlock_irq(&conf->resync_lock);
}
-static int make_request(request_queue_t *q, struct bio * bio)
+static int make_request(struct request_queue *q, struct bio * bio)
{
mddev_t *mddev = q->queuedata;
conf_t *conf = mddev_to_conf(mddev);
@@ -917,6 +917,13 @@ static int make_request(request_queue_t *q, struct bio * bio)
bio_list_add(&bl, mbio);
}
+ if (unlikely(!atomic_read(&r10_bio->remaining))) {
+ /* the array is dead */
+ md_write_end(mddev);
+ raid_end_bio_io(r10_bio);
+ return 0;
+ }
+
bitmap_startwrite(mddev->bitmap, bio->bi_sector, r10_bio->sectors, 0);
spin_lock_irqsave(&conf->device_lock, flags);
bio_list_merge(&conf->pending_bio_list, &bl);
@@ -1557,7 +1564,6 @@ static void raid10d(mddev_t *mddev)
bio = r10_bio->devs[r10_bio->read_slot].bio;
r10_bio->devs[r10_bio->read_slot].bio =
mddev->ro ? IO_BLOCKED : NULL;
- bio_put(bio);
mirror = read_balance(conf, r10_bio);
if (mirror == -1) {
printk(KERN_ALERT "raid10: %s: unrecoverable I/O"
@@ -1565,8 +1571,10 @@ static void raid10d(mddev_t *mddev)
bdevname(bio->bi_bdev,b),
(unsigned long long)r10_bio->sector);
raid_end_bio_io(r10_bio);
+ bio_put(bio);
} else {
const int do_sync = bio_sync(r10_bio->master_bio);
+ bio_put(bio);
rdev = conf->mirrors[mirror].rdev;
if (printk_ratelimit())
printk(KERN_ERR "raid10: %s: redirecting sector %llu to"
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index 0b66afef2d82..4d63773ee73a 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -289,7 +289,7 @@ static struct stripe_head *__find_stripe(raid5_conf_t *conf, sector_t sector, in
}
static void unplug_slaves(mddev_t *mddev);
-static void raid5_unplug_device(request_queue_t *q);
+static void raid5_unplug_device(struct request_queue *q);
static struct stripe_head *get_active_stripe(raid5_conf_t *conf, sector_t sector, int disks,
int pd_idx, int noblock)
@@ -493,12 +493,12 @@ async_copy_data(int frombio, struct bio *bio, struct page *page,
if (frombio)
tx = async_memcpy(page, bio_page, page_offset,
b_offset, clen,
- ASYNC_TX_DEP_ACK | ASYNC_TX_KMAP_SRC,
+ ASYNC_TX_DEP_ACK,
tx, NULL, NULL);
else
tx = async_memcpy(bio_page, page, b_offset,
page_offset, clen,
- ASYNC_TX_DEP_ACK | ASYNC_TX_KMAP_DST,
+ ASYNC_TX_DEP_ACK,
tx, NULL, NULL);
}
if (clen < len) /* hit end of page */
@@ -951,7 +951,7 @@ static int grow_stripes(raid5_conf_t *conf, int num)
conf->active_name = 0;
sc = kmem_cache_create(conf->cache_name[conf->active_name],
sizeof(struct stripe_head)+(devs-1)*sizeof(struct r5dev),
- 0, 0, NULL, NULL);
+ 0, 0, NULL);
if (!sc)
return 1;
conf->slab_cache = sc;
@@ -1003,7 +1003,7 @@ static int resize_stripes(raid5_conf_t *conf, int newsize)
/* Step 1 */
sc = kmem_cache_create(conf->cache_name[1-conf->active_name],
sizeof(struct stripe_head)+(newsize-1)*sizeof(struct r5dev),
- 0, 0, NULL, NULL);
+ 0, 0, NULL);
if (!sc)
return -ENOMEM;
@@ -2541,7 +2541,7 @@ static void handle_stripe_expansion(raid5_conf_t *conf, struct stripe_head *sh,
struct dma_async_tx_descriptor *tx = NULL;
clear_bit(STRIPE_EXPAND_SOURCE, &sh->state);
for (i = 0; i < sh->disks; i++)
- if (i != sh->pd_idx && (r6s && i != r6s->qd_idx)) {
+ if (i != sh->pd_idx && (!r6s || i != r6s->qd_idx)) {
int dd_idx, pd_idx, j;
struct stripe_head *sh2;
@@ -2574,7 +2574,8 @@ static void handle_stripe_expansion(raid5_conf_t *conf, struct stripe_head *sh,
set_bit(R5_UPTODATE, &sh2->dev[dd_idx].flags);
for (j = 0; j < conf->raid_disks; j++)
if (j != sh2->pd_idx &&
- (r6s && j != r6s->qd_idx) &&
+ (!r6s || j != raid6_next_disk(sh2->pd_idx,
+ sh2->disks)) &&
!test_bit(R5_Expanded, &sh2->dev[j].flags))
break;
if (j == conf->raid_disks) {
@@ -2583,12 +2584,12 @@ static void handle_stripe_expansion(raid5_conf_t *conf, struct stripe_head *sh,
}
release_stripe(sh2);
- /* done submitting copies, wait for them to complete */
- if (i + 1 >= sh->disks) {
- async_tx_ack(tx);
- dma_wait_for_async_tx(tx);
- }
}
+ /* done submitting copies, wait for them to complete */
+ if (tx) {
+ async_tx_ack(tx);
+ dma_wait_for_async_tx(tx);
+ }
}
/*
@@ -2855,7 +2856,7 @@ static void handle_stripe5(struct stripe_head *sh)
sh->disks = conf->raid_disks;
sh->pd_idx = stripe_to_pdidx(sh->sector, conf,
conf->raid_disks);
- s.locked += handle_write_operations5(sh, 0, 1);
+ s.locked += handle_write_operations5(sh, 1, 1);
} else if (s.expanded &&
!test_bit(STRIPE_OP_POSTXOR, &sh->ops.pending)) {
clear_bit(STRIPE_EXPAND_READY, &sh->state);
@@ -3182,7 +3183,7 @@ static void unplug_slaves(mddev_t *mddev)
for (i=0; i<mddev->raid_disks; i++) {
mdk_rdev_t *rdev = rcu_dereference(conf->disks[i].rdev);
if (rdev && !test_bit(Faulty, &rdev->flags) && atomic_read(&rdev->nr_pending)) {
- request_queue_t *r_queue = bdev_get_queue(rdev->bdev);
+ struct request_queue *r_queue = bdev_get_queue(rdev->bdev);
atomic_inc(&rdev->nr_pending);
rcu_read_unlock();
@@ -3197,7 +3198,7 @@ static void unplug_slaves(mddev_t *mddev)
rcu_read_unlock();
}
-static void raid5_unplug_device(request_queue_t *q)
+static void raid5_unplug_device(struct request_queue *q)
{
mddev_t *mddev = q->queuedata;
raid5_conf_t *conf = mddev_to_conf(mddev);
@@ -3216,7 +3217,7 @@ static void raid5_unplug_device(request_queue_t *q)
unplug_slaves(mddev);
}
-static int raid5_issue_flush(request_queue_t *q, struct gendisk *disk,
+static int raid5_issue_flush(struct request_queue *q, struct gendisk *disk,
sector_t *error_sector)
{
mddev_t *mddev = q->queuedata;
@@ -3228,7 +3229,7 @@ static int raid5_issue_flush(request_queue_t *q, struct gendisk *disk,
mdk_rdev_t *rdev = rcu_dereference(conf->disks[i].rdev);
if (rdev && !test_bit(Faulty, &rdev->flags)) {
struct block_device *bdev = rdev->bdev;
- request_queue_t *r_queue = bdev_get_queue(bdev);
+ struct request_queue *r_queue = bdev_get_queue(bdev);
if (!r_queue->issue_flush_fn)
ret = -EOPNOTSUPP;
@@ -3267,7 +3268,7 @@ static int raid5_congested(void *data, int bits)
/* We want read requests to align with chunks where possible,
* but write requests don't need to.
*/
-static int raid5_mergeable_bvec(request_queue_t *q, struct bio *bio, struct bio_vec *biovec)
+static int raid5_mergeable_bvec(struct request_queue *q, struct bio *bio, struct bio_vec *biovec)
{
mddev_t *mddev = q->queuedata;
sector_t sector = bio->bi_sector + get_start_sect(bio->bi_bdev);
@@ -3377,7 +3378,7 @@ static int raid5_align_endio(struct bio *bi, unsigned int bytes, int error)
static int bio_fits_rdev(struct bio *bi)
{
- request_queue_t *q = bdev_get_queue(bi->bi_bdev);
+ struct request_queue *q = bdev_get_queue(bi->bi_bdev);
if ((bi->bi_size>>9) > q->max_sectors)
return 0;
@@ -3396,7 +3397,7 @@ static int bio_fits_rdev(struct bio *bi)
}
-static int chunk_aligned_read(request_queue_t *q, struct bio * raid_bio)
+static int chunk_aligned_read(struct request_queue *q, struct bio * raid_bio)
{
mddev_t *mddev = q->queuedata;
raid5_conf_t *conf = mddev_to_conf(mddev);
@@ -3466,7 +3467,7 @@ static int chunk_aligned_read(request_queue_t *q, struct bio * raid_bio)
}
-static int make_request(request_queue_t *q, struct bio * bi)
+static int make_request(struct request_queue *q, struct bio * bi)
{
mddev_t *mddev = q->queuedata;
raid5_conf_t *conf = mddev_to_conf(mddev);