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block/bio-integrity: use struct_size() in kmalloc()

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Use the new struct_size() helper to keep code simple.

Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Signed-off-by: Jackie Liu <liuyun01@kylinos.cn>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Jackie Liu 2019-05-15 16:52:19 +08:00 committed by Jens Axboe
parent 47ca23c117
commit 7a102d9044
1 changed files with 1 additions and 2 deletions
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block/bio-integrity.c
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@ -43,8 +43,7 @@ struct bio_integrity_payload *bio_integrity_alloc(struct bio *bio,
unsigned inline_vecs;
if (!bs || !mempool_initialized(&bs->bio_integrity_pool)) {
bip = kmalloc(sizeof(struct bio_integrity_payload) +
sizeof(struct bio_vec) * nr_vecs, gfp_mask);
bip = kmalloc(struct_size(bip, bip_inline_vecs, nr_vecs), gfp_mask);
inline_vecs = nr_vecs;
} else {
bip = mempool_alloc(&bs->bio_integrity_pool, gfp_mask);