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dm thin metadata: fix __udivdi3 undefined on 32-bit

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commit 013ad043906b2befd4a9bfb06219ed9fedd92716 upstream.

sector_div() is only viable for use with sector_t.
dm_block_t is typedef'd to uint64_t -- so use div_u64() instead.

Fixes: 3ab918281 ("dm thin metadata: try to avoid ever aborting transactions")
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Cc: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Mike Snitzer 2018-09-13 21:16:20 -04:00 committed by Greg Kroah-Hartman
parent 07f79b39d4
commit 4e7ea65127
1 changed files with 2 additions and 4 deletions
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6
drivers/md/dm-thin-metadata.c
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@ -841,10 +841,8 @@ static void __set_metadata_reserve(struct dm_pool_metadata *pmd)
if (r) {
DMERR("could not get size of metadata device");
pmd->metadata_reserve = max_blocks;
} else {
sector_div(total, 10);
pmd->metadata_reserve = min(max_blocks, total);
}
} else
pmd->metadata_reserve = min(max_blocks, div_u64(total, 10));
}
struct dm_pool_metadata *dm_pool_metadata_open(struct block_device *bdev,