diff options
| author | NeilBrown <neilb@suse.de> | 2009-10-16 15:55:32 +1100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2009-12-08 10:20:58 -0800 |
| commit | 57a0aa351bff86bd529c8638a376cf0a18b60eae (patch) | |
| tree | d2b01a47668e4e29a2be0a61bab4d512a5433742 | |
| parent | 8a7963564a8288a2c98d1c924d09ac0697b8f92c (diff) | |
| download | lwn-57a0aa351bff86bd529c8638a376cf0a18b60eae.tar.gz lwn-57a0aa351bff86bd529c8638a376cf0a18b60eae.zip | |
md/raid1/raid10: add a cond_resched
commit 1d9d52416c0445019ccc1f0fddb9a227456eb61b upstream.
During 'check' of a raid1 or raid10 it is possible for the management
thread to spend a lot of time running 'memcmp' on blocks from
different devices, so make sure the thread has a chance to schedule.
raid5d already has a cond_resched (in process_stripe).
Reported-By: Lee Howard <faxguy@howardsilvan.com>
Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| -rw-r--r-- | drivers/md/raid1.c | 1 | ||||
| -rw-r--r-- | drivers/md/raid10.c | 1 |
2 files changed, 2 insertions, 0 deletions
diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c index 8726fd7ebce5..67cd1d9fa4ba 100644 --- a/drivers/md/raid1.c +++ b/drivers/md/raid1.c @@ -1676,6 +1676,7 @@ static void raid1d(mddev_t *mddev) generic_make_request(bio); } } + cond_resched(); } if (unplug) unplug_slaves(mddev); diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c index 3d9020cf6f6e..6a5a5fb18b30 100644 --- a/drivers/md/raid10.c +++ b/drivers/md/raid10.c @@ -1630,6 +1630,7 @@ static void raid10d(mddev_t *mddev) generic_make_request(bio); } } + cond_resched(); } if (unplug) unplug_slaves(mddev); |