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| author | NeilBrown <neilb@suse.de> | 2011-04-18 18:25:41 +1000 |
|---|---|---|
| committer | NeilBrown <neilb@suse.de> | 2011-04-18 18:25:41 +1000 |
| commit | e1dfa0a29737142c32f00a3bac0f609dc85b4a82 (patch) | |
| tree | 1af906cc5e959803e7d5ea0e56fb69b56754501a /drivers/md | |
| parent | 99e22598e9a8e0a996d69c8c0f6b7027cb57720a (diff) | |
| download | linux-stable-e1dfa0a29737142c32f00a3bac0f609dc85b4a82.tar.gz linux-stable-e1dfa0a29737142c32f00a3bac0f609dc85b4a82.tar.bz2 linux-stable-e1dfa0a29737142c32f00a3bac0f609dc85b4a82.zip | |
md: use new plugging interface for RAID IO.
md/raid submits a lot of IO from the various raid threads.
So adding start/finish plug calls to those so that some
plugging happens.
Signed-off-by: NeilBrown <neilb@suse.de>
Diffstat (limited to 'drivers/md')
| -rw-r--r-- | drivers/md/raid1.c | 5 | ||||
| -rw-r--r-- | drivers/md/raid10.c | 3 | ||||
| -rw-r--r-- | drivers/md/raid5.c | 3 |
3 files changed, 10 insertions, 1 deletions
diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c index c2a21ae56d97..5449cd5e3141 100644 --- a/drivers/md/raid1.c +++ b/drivers/md/raid1.c @@ -1516,9 +1516,11 @@ static void raid1d(mddev_t *mddev) conf_t *conf = mddev->private; struct list_head *head = &conf->retry_list; mdk_rdev_t *rdev; + struct blk_plug plug; md_check_recovery(mddev); - + + blk_start_plug(&plug); for (;;) { char b[BDEVNAME_SIZE]; @@ -1593,6 +1595,7 @@ static void raid1d(mddev_t *mddev) } cond_resched(); } + blk_finish_plug(&plug); } diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c index 2da83d566592..c8e5dac5d695 100644 --- a/drivers/md/raid10.c +++ b/drivers/md/raid10.c @@ -1640,9 +1640,11 @@ static void raid10d(mddev_t *mddev) conf_t *conf = mddev->private; struct list_head *head = &conf->retry_list; mdk_rdev_t *rdev; + struct blk_plug plug; md_check_recovery(mddev); + blk_start_plug(&plug); for (;;) { char b[BDEVNAME_SIZE]; @@ -1716,6 +1718,7 @@ static void raid10d(mddev_t *mddev) } cond_resched(); } + blk_finish_plug(&plug); } diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index e867ee42b152..ce6960b1c682 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -4478,11 +4478,13 @@ static void raid5d(mddev_t *mddev) struct stripe_head *sh; raid5_conf_t *conf = mddev->private; int handled; + struct blk_plug plug; pr_debug("+++ raid5d active\n"); md_check_recovery(mddev); + blk_start_plug(&plug); handled = 0; spin_lock_irq(&conf->device_lock); while (1) { @@ -4525,6 +4527,7 @@ static void raid5d(mddev_t *mddev) spin_unlock_irq(&conf->device_lock); async_tx_issue_pending_all(); + blk_finish_plug(&plug); pr_debug("--- raid5d inactive\n"); } |