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dm-raid: fix a race condition in request handling

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raid_map calls pers->make_request, which missed the suspend check. Fix it with
the new md_handle_request API.

Fix: cc27b0c78c79(md: fix deadlock between mddev_suspend() and md_write_start())
Cc: Heinz Mauelshagen <[email protected]>
Cc: Mike Snitzer <[email protected]>
Cc: [email protected]
Reviewed-by: NeilBrown <[email protected]>
Signed-off-by: Shaohua Li <[email protected]>
This commit is contained in:
Shaohua Li 2017-09-21 10:29:22 -07:00
commit c4d6a1b8e8
1 changed files with 1 additions and 1 deletions
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2
drivers/md/dm-raid.c
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@ -3238,7 +3238,7 @@ static int raid_map(struct dm_target *ti, struct bio *bio)
if (unlikely(bio_end_sector(bio) > mddev->array_sectors))
return DM_MAPIO_REQUEUE;
mddev->pers->make_request(mddev, bio);
md_handle_request(mddev, bio);
return DM_MAPIO_SUBMITTED;
}