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md/raid1/raid10: add a cond_resched

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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 <[email protected]>
Signed-off-by: NeilBrown <[email protected]>
This commit is contained in:
NeilBrown 2009-10-16 15:55:32 +11:00
commit 1d9d52416c
2 changed files with 2 additions and 0 deletions
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1
drivers/md/raid1.c
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@ -1683,6 +1683,7 @@ static void raid1d(mddev_t *mddev)
generic_make_request(bio);
}
}
cond_resched();
}
if (unplug)
unplug_slaves(mddev);

1
drivers/md/raid10.c
View file

@ -1632,6 +1632,7 @@ static void raid10d(mddev_t *mddev)
generic_make_request(bio);
}
}
cond_resched();
}
if (unplug)
unplug_slaves(mddev);