Add UNPLUG traces to all appropriate places
Added blk_unplug interface, allowing all invocations of unplugs to result
in a generated blktrace UNPLUG.
Signed-off-by: Alan D. Brunelle <Alan.Brunelle@hp.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
diff --git a/drivers/md/bitmap.c b/drivers/md/bitmap.c
index 7c426d0..1b1ef31 100644
--- a/drivers/md/bitmap.c
+++ b/drivers/md/bitmap.c
@@ -1207,8 +1207,7 @@
prepare_to_wait(&bitmap->overflow_wait, &__wait,
TASK_UNINTERRUPTIBLE);
spin_unlock_irq(&bitmap->lock);
- bitmap->mddev->queue
- ->unplug_fn(bitmap->mddev->queue);
+ blk_unplug(bitmap->mddev->queue);
schedule();
finish_wait(&bitmap->overflow_wait, &__wait);
continue;
diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c
index 5a7eb65..e298d8d 100644
--- a/drivers/md/dm-table.c
+++ b/drivers/md/dm-table.c
@@ -1000,8 +1000,7 @@
struct dm_dev *dd = list_entry(d, struct dm_dev, list);
struct request_queue *q = bdev_get_queue(dd->bdev);
- if (q->unplug_fn)
- q->unplug_fn(q);
+ blk_unplug(q);
}
}
diff --git a/drivers/md/linear.c b/drivers/md/linear.c
index 56a11f6..3dac1cf 100644
--- a/drivers/md/linear.c
+++ b/drivers/md/linear.c
@@ -87,8 +87,7 @@
for (i=0; i < mddev->raid_disks; i++) {
struct request_queue *r_queue = bdev_get_queue(conf->disks[i].rdev->bdev);
- if (r_queue->unplug_fn)
- r_queue->unplug_fn(r_queue);
+ blk_unplug(r_queue);
}
}
diff --git a/drivers/md/md.c b/drivers/md/md.c
index 808cd95..cef9ebd 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -5445,7 +5445,7 @@
* about not overloading the IO subsystem. (things like an
* e2fsck being done on the RAID array should execute fast)
*/
- mddev->queue->unplug_fn(mddev->queue);
+ blk_unplug(mddev->queue);
cond_resched();
currspeed = ((unsigned long)(io_sectors-mddev->resync_mark_cnt))/2
@@ -5464,7 +5464,7 @@
* this also signals 'finished resyncing' to md_stop
*/
out:
- mddev->queue->unplug_fn(mddev->queue);
+ blk_unplug(mddev->queue);
wait_event(mddev->recovery_wait, !atomic_read(&mddev->recovery_active));
diff --git a/drivers/md/multipath.c b/drivers/md/multipath.c
index b35731c..eb631eb 100644
--- a/drivers/md/multipath.c
+++ b/drivers/md/multipath.c
@@ -125,8 +125,7 @@
atomic_inc(&rdev->nr_pending);
rcu_read_unlock();
- if (r_queue->unplug_fn)
- r_queue->unplug_fn(r_queue);
+ blk_unplug(r_queue);
rdev_dec_pending(rdev, mddev);
rcu_read_lock();
diff --git a/drivers/md/raid0.c b/drivers/md/raid0.c
index c111105..f8e5917 100644
--- a/drivers/md/raid0.c
+++ b/drivers/md/raid0.c
@@ -35,8 +35,7 @@
for (i=0; i<mddev->raid_disks; i++) {
struct request_queue *r_queue = bdev_get_queue(devlist[i]->bdev);
- if (r_queue->unplug_fn)
- r_queue->unplug_fn(r_queue);
+ blk_unplug(r_queue);
}
}
diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index 85478d6..4a69c41 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -549,8 +549,7 @@
atomic_inc(&rdev->nr_pending);
rcu_read_unlock();
- if (r_queue->unplug_fn)
- r_queue->unplug_fn(r_queue);
+ blk_unplug(r_queue);
rdev_dec_pending(rdev, mddev);
rcu_read_lock();
diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
index fc6607a..5cdcc93 100644
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -593,8 +593,7 @@
atomic_inc(&rdev->nr_pending);
rcu_read_unlock();
- if (r_queue->unplug_fn)
- r_queue->unplug_fn(r_queue);
+ blk_unplug(r_queue);
rdev_dec_pending(rdev, mddev);
rcu_read_lock();
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index 82af346..1cfc984 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -3186,8 +3186,7 @@
atomic_inc(&rdev->nr_pending);
rcu_read_unlock();
- if (r_queue->unplug_fn)
- r_queue->unplug_fn(r_queue);
+ blk_unplug(r_queue);
rdev_dec_pending(rdev, mddev);
rcu_read_lock();