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-rw-r--r--drivers/md/dm-log-userspace-base.c2
-rw-r--r--drivers/md/dm-mpath.c42
-rw-r--r--drivers/md/dm-raid1.c2
-rw-r--r--drivers/md/dm-stripe.c4
-rw-r--r--drivers/md/dm.c28
-rw-r--r--drivers/md/linear.c2
-rw-r--r--drivers/md/multipath.c4
-rw-r--r--drivers/md/raid0.c2
-rw-r--r--drivers/md/raid1.c14
-rw-r--r--drivers/md/raid10.c6
-rw-r--r--drivers/md/raid5.c2
11 files changed, 72 insertions, 36 deletions
diff --git a/drivers/md/dm-log-userspace-base.c b/drivers/md/dm-log-userspace-base.c
index 6e186b1a062..652bd33109e 100644
--- a/drivers/md/dm-log-userspace-base.c
+++ b/drivers/md/dm-log-userspace-base.c
@@ -582,7 +582,7 @@ static int userspace_status(struct dm_dirty_log *log, status_type_t status_type,
break;
case STATUSTYPE_TABLE:
sz = 0;
- table_args = strstr(lc->usr_argv_str, " ");
+ table_args = strchr(lc->usr_argv_str, ' ');
BUG_ON(!table_args); /* There will always be a ' ' */
table_args++;
diff --git a/drivers/md/dm-mpath.c b/drivers/md/dm-mpath.c
index 6f0d90d4a54..32d0b878ecc 100644
--- a/drivers/md/dm-mpath.c
+++ b/drivers/md/dm-mpath.c
@@ -64,6 +64,7 @@ struct multipath {
spinlock_t lock;
const char *hw_handler_name;
+ char *hw_handler_params;
unsigned nr_priority_groups;
struct list_head priority_groups;
unsigned pg_init_required; /* pg_init needs calling? */
@@ -219,6 +220,7 @@ static void free_multipath(struct multipath *m)
}
kfree(m->hw_handler_name);
+ kfree(m->hw_handler_params);
mempool_destroy(m->mpio_pool);
kfree(m);
}
@@ -615,6 +617,17 @@ static struct pgpath *parse_path(struct arg_set *as, struct path_selector *ps,
dm_put_device(ti, p->path.dev);
goto bad;
}
+
+ if (m->hw_handler_params) {
+ r = scsi_dh_set_params(q, m->hw_handler_params);
+ if (r < 0) {
+ ti->error = "unable to set hardware "
+ "handler parameters";
+ scsi_dh_detach(q);
+ dm_put_device(ti, p->path.dev);
+ goto bad;
+ }
+ }
}
r = ps->type->add_path(ps, &p->path, as->argc, as->argv, &ti->error);
@@ -705,6 +718,7 @@ static struct priority_group *parse_priority_group(struct arg_set *as,
static int parse_hw_handler(struct arg_set *as, struct multipath *m)
{
unsigned hw_argc;
+ int ret;
struct dm_target *ti = m->ti;
static struct param _params[] = {
@@ -726,17 +740,33 @@ static int parse_hw_handler(struct arg_set *as, struct multipath *m)
request_module("scsi_dh_%s", m->hw_handler_name);
if (scsi_dh_handler_exist(m->hw_handler_name) == 0) {
ti->error = "unknown hardware handler type";
- kfree(m->hw_handler_name);
- m->hw_handler_name = NULL;
- return -EINVAL;
+ ret = -EINVAL;
+ goto fail;
}
- if (hw_argc > 1)
- DMWARN("Ignoring user-specified arguments for "
- "hardware handler \"%s\"", m->hw_handler_name);
+ if (hw_argc > 1) {
+ char *p;
+ int i, j, len = 4;
+
+ for (i = 0; i <= hw_argc - 2; i++)
+ len += strlen(as->argv[i]) + 1;
+ p = m->hw_handler_params = kzalloc(len, GFP_KERNEL);
+ if (!p) {
+ ti->error = "memory allocation failed";
+ ret = -ENOMEM;
+ goto fail;
+ }
+ j = sprintf(p, "%d", hw_argc - 1);
+ for (i = 0, p+=j+1; i <= hw_argc - 2; i++, p+=j+1)
+ j = sprintf(p, "%s", as->argv[i]);
+ }
consume(as, hw_argc - 1);
return 0;
+fail:
+ kfree(m->hw_handler_name);
+ m->hw_handler_name = NULL;
+ return ret;
}
static int parse_features(struct arg_set *as, struct multipath *m)
diff --git a/drivers/md/dm-raid1.c b/drivers/md/dm-raid1.c
index 33f179e66bf..cc9dc79b078 100644
--- a/drivers/md/dm-raid1.c
+++ b/drivers/md/dm-raid1.c
@@ -1129,7 +1129,7 @@ static int mirror_end_io(struct dm_target *ti, struct bio *bio,
if (error == -EOPNOTSUPP)
goto out;
- if ((error == -EWOULDBLOCK) && bio_rw_ahead(bio))
+ if ((error == -EWOULDBLOCK) && bio_rw_flagged(bio, BIO_RW_AHEAD))
goto out;
if (unlikely(error)) {
diff --git a/drivers/md/dm-stripe.c b/drivers/md/dm-stripe.c
index 3e563d25173..e0efc1adcaf 100644
--- a/drivers/md/dm-stripe.c
+++ b/drivers/md/dm-stripe.c
@@ -285,7 +285,7 @@ static int stripe_end_io(struct dm_target *ti, struct bio *bio,
if (!error)
return 0; /* I/O complete */
- if ((error == -EWOULDBLOCK) && bio_rw_ahead(bio))
+ if ((error == -EWOULDBLOCK) && bio_rw_flagged(bio, BIO_RW_AHEAD))
return error;
if (error == -EOPNOTSUPP)
@@ -336,7 +336,7 @@ static void stripe_io_hints(struct dm_target *ti,
unsigned chunk_size = (sc->chunk_mask + 1) << 9;
blk_limits_io_min(limits, chunk_size);
- limits->io_opt = chunk_size * sc->stripes;
+ blk_limits_io_opt(limits, chunk_size * sc->stripes);
}
static struct target_type stripe_target = {
diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index b4845b14740..eee28fac210 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -130,7 +130,7 @@ struct mapped_device {
/*
* A list of ios that arrived while we were suspended.
*/
- atomic_t pending;
+ atomic_t pending[2];
wait_queue_head_t wait;
struct work_struct work;
struct bio_list deferred;
@@ -453,13 +453,14 @@ static void start_io_acct(struct dm_io *io)
{
struct mapped_device *md = io->md;
int cpu;
+ int rw = bio_data_dir(io->bio);
io->start_time = jiffies;
cpu = part_stat_lock();
part_round_stats(cpu, &dm_disk(md)->part0);
part_stat_unlock();
- dm_disk(md)->part0.in_flight = atomic_inc_return(&md->pending);
+ dm_disk(md)->part0.in_flight[rw] = atomic_inc_return(&md->pending[rw]);
}
static void end_io_acct(struct dm_io *io)
@@ -479,8 +480,9 @@ static void end_io_acct(struct dm_io *io)
* After this is decremented the bio must not be touched if it is
* a barrier.
*/
- dm_disk(md)->part0.in_flight = pending =
- atomic_dec_return(&md->pending);
+ dm_disk(md)->part0.in_flight[rw] = pending =
+ atomic_dec_return(&md->pending[rw]);
+ pending += atomic_read(&md->pending[rw^0x1]);
/* nudge anyone waiting on suspend queue */
if (!pending)
@@ -586,7 +588,7 @@ static void dec_pending(struct dm_io *io, int error)
*/
spin_lock_irqsave(&md->deferred_lock, flags);
if (__noflush_suspending(md)) {
- if (!bio_barrier(io->bio))
+ if (!bio_rw_flagged(io->bio, BIO_RW_BARRIER))
bio_list_add_head(&md->deferred,
io->bio);
} else
@@ -598,7 +600,7 @@ static void dec_pending(struct dm_io *io, int error)
io_error = io->error;
bio = io->bio;
- if (bio_barrier(bio)) {
+ if (bio_rw_flagged(bio, BIO_RW_BARRIER)) {
/*
* There can be just one barrier request so we use
* a per-device variable for error reporting.
@@ -1209,7 +1211,7 @@ static void __split_and_process_bio(struct mapped_device *md, struct bio *bio)
ci.map = dm_get_table(md);
if (unlikely(!ci.map)) {
- if (!bio_barrier(bio))
+ if (!bio_rw_flagged(bio, BIO_RW_BARRIER))
bio_io_error(bio);
else
if (!md->barrier_error)
@@ -1321,7 +1323,7 @@ static int _dm_request(struct request_queue *q, struct bio *bio)
* we have to queue this io for later.
*/
if (unlikely(test_bit(DMF_QUEUE_IO_TO_THREAD, &md->flags)) ||
- unlikely(bio_barrier(bio))) {
+ unlikely(bio_rw_flagged(bio, BIO_RW_BARRIER))) {
up_read(&md->io_lock);
if (unlikely(test_bit(DMF_BLOCK_IO_FOR_SUSPEND, &md->flags)) &&
@@ -1344,7 +1346,7 @@ static int dm_make_request(struct request_queue *q, struct bio *bio)
{
struct mapped_device *md = q->queuedata;
- if (unlikely(bio_barrier(bio))) {
+ if (unlikely(bio_rw_flagged(bio, BIO_RW_BARRIER))) {
bio_endio(bio, -EOPNOTSUPP);
return 0;
}
@@ -1785,7 +1787,8 @@ static struct mapped_device *alloc_dev(int minor)
if (!md->disk)
goto bad_disk;
- atomic_set(&md->pending, 0);
+ atomic_set(&md->pending[0], 0);
+ atomic_set(&md->pending[1], 0);
init_waitqueue_head(&md->wait);
INIT_WORK(&md->work, dm_wq_work);
init_waitqueue_head(&md->eventq);
@@ -2088,7 +2091,8 @@ static int dm_wait_for_completion(struct mapped_device *md, int interruptible)
break;
}
spin_unlock_irqrestore(q->queue_lock, flags);
- } else if (!atomic_read(&md->pending))
+ } else if (!atomic_read(&md->pending[0]) &&
+ !atomic_read(&md->pending[1]))
break;
if (interruptible == TASK_INTERRUPTIBLE &&
@@ -2164,7 +2168,7 @@ static void dm_wq_work(struct work_struct *work)
if (dm_request_based(md))
generic_make_request(c);
else {
- if (bio_barrier(c))
+ if (bio_rw_flagged(c, BIO_RW_BARRIER))
process_barrier(md, c);
else
__split_and_process_bio(md, c);
diff --git a/drivers/md/linear.c b/drivers/md/linear.c
index 5fe39c2a3d2..ea484290544 100644
--- a/drivers/md/linear.c
+++ b/drivers/md/linear.c
@@ -288,7 +288,7 @@ static int linear_make_request (struct request_queue *q, struct bio *bio)
sector_t start_sector;
int cpu;
- if (unlikely(bio_barrier(bio))) {
+ if (unlikely(bio_rw_flagged(bio, BIO_RW_BARRIER))) {
bio_endio(bio, -EOPNOTSUPP);
return 0;
}
diff --git a/drivers/md/multipath.c b/drivers/md/multipath.c
index 7140909f666..89e76819f61 100644
--- a/drivers/md/multipath.c
+++ b/drivers/md/multipath.c
@@ -90,7 +90,7 @@ static void multipath_end_request(struct bio *bio, int error)
if (uptodate)
multipath_end_bh_io(mp_bh, 0);
- else if (!bio_rw_ahead(bio)) {
+ else if (!bio_rw_flagged(bio, BIO_RW_AHEAD)) {
/*
* oops, IO error:
*/
@@ -144,7 +144,7 @@ static int multipath_make_request (struct request_queue *q, struct bio * bio)
const int rw = bio_data_dir(bio);
int cpu;
- if (unlikely(bio_barrier(bio))) {
+ if (unlikely(bio_rw_flagged(bio, BIO_RW_BARRIER))) {
bio_endio(bio, -EOPNOTSUPP);
return 0;
}
diff --git a/drivers/md/raid0.c b/drivers/md/raid0.c
index 898e2bdfee4..f845ed98fec 100644
--- a/drivers/md/raid0.c
+++ b/drivers/md/raid0.c
@@ -448,7 +448,7 @@ static int raid0_make_request(struct request_queue *q, struct bio *bio)
const int rw = bio_data_dir(bio);
int cpu;
- if (unlikely(bio_barrier(bio))) {
+ if (unlikely(bio_rw_flagged(bio, BIO_RW_BARRIER))) {
bio_endio(bio, -EOPNOTSUPP);
return 0;
}
diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index 8726fd7ebce..ff7ed333599 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -782,8 +782,9 @@ static int make_request(struct request_queue *q, struct bio * bio)
struct bio_list bl;
struct page **behind_pages = NULL;
const int rw = bio_data_dir(bio);
- const int do_sync = bio_sync(bio);
- int cpu, do_barriers;
+ const bool do_sync = bio_rw_flagged(bio, BIO_RW_SYNCIO);
+ int cpu;
+ bool do_barriers;
mdk_rdev_t *blocked_rdev;
/*
@@ -797,7 +798,8 @@ static int make_request(struct request_queue *q, struct bio * bio)
md_write_start(mddev, bio); /* wait on superblock update early */
- if (unlikely(!mddev->barriers_work && bio_barrier(bio))) {
+ if (unlikely(!mddev->barriers_work &&
+ bio_rw_flagged(bio, BIO_RW_BARRIER))) {
if (rw == WRITE)
md_write_end(mddev);
bio_endio(bio, -EOPNOTSUPP);
@@ -925,7 +927,7 @@ static int make_request(struct request_queue *q, struct bio * bio)
atomic_set(&r1_bio->remaining, 0);
atomic_set(&r1_bio->behind_remaining, 0);
- do_barriers = bio_barrier(bio);
+ do_barriers = bio_rw_flagged(bio, BIO_RW_BARRIER);
if (do_barriers)
set_bit(R1BIO_Barrier, &r1_bio->state);
@@ -1600,7 +1602,7 @@ static void raid1d(mddev_t *mddev)
* We already have a nr_pending reference on these rdevs.
*/
int i;
- const int do_sync = bio_sync(r1_bio->master_bio);
+ const bool do_sync = bio_rw_flagged(r1_bio->master_bio, BIO_RW_SYNCIO);
clear_bit(R1BIO_BarrierRetry, &r1_bio->state);
clear_bit(R1BIO_Barrier, &r1_bio->state);
for (i=0; i < conf->raid_disks; i++)
@@ -1654,7 +1656,7 @@ static void raid1d(mddev_t *mddev)
(unsigned long long)r1_bio->sector);
raid_end_bio_io(r1_bio);
} else {
- const int do_sync = bio_sync(r1_bio->master_bio);
+ const bool do_sync = bio_rw_flagged(r1_bio->master_bio, BIO_RW_SYNCIO);
r1_bio->bios[r1_bio->read_disk] =
mddev->ro ? IO_BLOCKED : NULL;
r1_bio->read_disk = disk;
diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
index 3d9020cf6f6..d0a2152e064 100644
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -796,12 +796,12 @@ static int make_request(struct request_queue *q, struct bio * bio)
int i;
int chunk_sects = conf->chunk_mask + 1;
const int rw = bio_data_dir(bio);
- const int do_sync = bio_sync(bio);
+ const bool do_sync = bio_rw_flagged(bio, BIO_RW_SYNCIO);
struct bio_list bl;
unsigned long flags;
mdk_rdev_t *blocked_rdev;
- if (unlikely(bio_barrier(bio))) {
+ if (unlikely(bio_rw_flagged(bio, BIO_RW_BARRIER))) {
bio_endio(bio, -EOPNOTSUPP);
return 0;
}
@@ -1610,7 +1610,7 @@ static void raid10d(mddev_t *mddev)
raid_end_bio_io(r10_bio);
bio_put(bio);
} else {
- const int do_sync = bio_sync(r10_bio->master_bio);
+ const bool do_sync = bio_rw_flagged(r10_bio->master_bio, BIO_RW_SYNCIO);
bio_put(bio);
rdev = conf->mirrors[mirror].rdev;
if (printk_ratelimit())
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index b8a2c5dc67b..826eb346735 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -3606,7 +3606,7 @@ static int make_request(struct request_queue *q, struct bio * bi)
const int rw = bio_data_dir(bi);
int cpu, remaining;
- if (unlikely(bio_barrier(bi))) {
+ if (unlikely(bio_rw_flagged(bi, BIO_RW_BARRIER))) {
bio_endio(bi, -EOPNOTSUPP);
return 0;
}
generated by cgit (git 2.34.1) at 2024-11-12 23:55:29 +0000