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-rw-r--r--drivers/md/md.c5
-rw-r--r--drivers/md/md.h3
-rw-r--r--drivers/md/raid1.c3
-rw-r--r--drivers/md/raid10.c3
-rw-r--r--drivers/md/raid5.c5
5 files changed, 5 insertions, 14 deletions
diff --git a/drivers/md/md.c b/drivers/md/md.c
index d5ab4493c8be..34381172a947 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -514,8 +514,7 @@ struct md_plug_cb {
static void plugger_unplug(struct blk_plug_cb *cb)
{
struct md_plug_cb *mdcb = container_of(cb, struct md_plug_cb, cb);
- if (atomic_dec_and_test(&mdcb->mddev->plug_cnt))
- md_wakeup_thread(mdcb->mddev->thread);
+ md_wakeup_thread(mdcb->mddev->thread);
kfree(mdcb);
}
@@ -548,7 +547,6 @@ int mddev_check_plugged(struct mddev *mddev)
mdcb->mddev = mddev;
mdcb->cb.callback = plugger_unplug;
- atomic_inc(&mddev->plug_cnt);
list_add(&mdcb->cb.list, &plug->cb_list);
return 1;
}
@@ -602,7 +600,6 @@ void mddev_init(struct mddev *mddev)
atomic_set(&mddev->active, 1);
atomic_set(&mddev->openers, 0);
atomic_set(&mddev->active_io, 0);
- atomic_set(&mddev->plug_cnt, 0);
spin_lock_init(&mddev->write_lock);
atomic_set(&mddev->flush_pending, 0);
init_waitqueue_head(&mddev->sb_wait);
diff --git a/drivers/md/md.h b/drivers/md/md.h
index 7b4a3c318cae..91786c46b85c 100644
--- a/drivers/md/md.h
+++ b/drivers/md/md.h
@@ -266,9 +266,6 @@ struct mddev {
int new_chunk_sectors;
int reshape_backwards;
- atomic_t plug_cnt; /* If device is expecting
- * more bios soon.
- */
struct md_thread *thread; /* management thread */
struct md_thread *sync_thread; /* doing resync or reconstruct */
sector_t curr_resync; /* last block scheduled */
diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index cacd008d6864..36a8fc059ac3 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -2173,8 +2173,7 @@ static void raid1d(struct mddev *mddev)
blk_start_plug(&plug);
for (;;) {
- if (atomic_read(&mddev->plug_cnt) == 0)
- flush_pending_writes(conf);
+ flush_pending_writes(conf);
spin_lock_irqsave(&conf->device_lock, flags);
if (list_empty(head)) {
diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
index 8da6282254c3..5d33603a497d 100644
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -2660,8 +2660,7 @@ static void raid10d(struct mddev *mddev)
blk_start_plug(&plug);
for (;;) {
- if (atomic_read(&mddev->plug_cnt) == 0)
- flush_pending_writes(conf);
+ flush_pending_writes(conf);
spin_lock_irqsave(&conf->device_lock, flags);
if (list_empty(head)) {
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index 04348d76bb30..bde9da2baa39 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -4543,7 +4543,7 @@ static void raid5d(struct mddev *mddev)
while (1) {
struct bio *bio;
- if (atomic_read(&mddev->plug_cnt) == 0 &&
+ if (
!list_empty(&conf->bitmap_list)) {
/* Now is a good time to flush some bitmap updates */
conf->seq_flush++;
@@ -4553,8 +4553,7 @@ static void raid5d(struct mddev *mddev)
conf->seq_write = conf->seq_flush;
activate_bit_delay(conf);
}
- if (atomic_read(&mddev->plug_cnt) == 0)
- raid5_activate_delayed(conf);
+ raid5_activate_delayed(conf);
while ((bio = remove_bio_from_retry(conf))) {
int ok;