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dm log writes: use struct_size() to calculate size of pending_block

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Use struct_size() to avoid open-coded equivalent that is prone to a type
mistake.

Signed-off-by: Zhengyuan Liu <liuzhengyuan@kylinos.cn>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
This commit is contained in:
Zhengyuan Liu 2019-06-12 14:14:46 +08:00 committed by Mike Snitzer
parent 9c81c99b24
commit d4e6e83651
1 changed files with 1 additions and 1 deletions
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2
drivers/md/dm-log-writes.c
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@ -699,7 +699,7 @@ static int log_writes_map(struct dm_target *ti, struct bio *bio)
if (discard_bio)
alloc_size = sizeof(struct pending_block);
else
alloc_size = sizeof(struct pending_block) + sizeof(struct bio_vec) * bio_segments(bio);
alloc_size = struct_size(block, vecs, bio_segments(bio));
block = kzalloc(alloc_size, GFP_NOIO);
if (!block) {