md faulty: use disk_stack_limits()
in:
fe86cdce
block: do not artificially constrain max_sectors for stacking drivers
max_sectors defaults to UINT_MAX. md faulty wasn't using
disk_stack_limits(), so inherited this large value as well.
This triggered a bug in XFS when stressed over md_faulty, when
a very large bio_alloc() failed.
That was on an older kernel, and I can't reproduce exactly the
same thing upstream, but I think the fix is appropriate in any
case.
Thanks to Mike Snitzer for pointing out the problem.
Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: NeilBrown <neilb@suse.de>
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1 changed files with 4 additions and 1 deletions
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@ -315,8 +315,11 @@ static int run(struct mddev *mddev)
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}
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conf->nfaults = 0;
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rdev_for_each(rdev, mddev)
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rdev_for_each(rdev, mddev) {
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conf->rdev = rdev;
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disk_stack_limits(mddev->gendisk, rdev->bdev,
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rdev->data_offset << 9);
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}
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md_set_array_sectors(mddev, faulty_size(mddev, 0, 0));
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mddev->private = conf;
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