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rbd: use memzero_bvec

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Use memzero_bvec instead of reimplementing it.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Ilya Dryomov <idryomov@gmail.com>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Link: https://lore.kernel.org/r/20210727055646.118787-7-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Christoph Hellwig 2021-07-27 07:56:37 +02:00 committed by Jens Axboe
parent ab6c340eea
commit 732022b86a
1 changed files with 2 additions and 13 deletions
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15
drivers/block/rbd.c
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@ -1219,24 +1219,13 @@ static void rbd_dev_mapping_clear(struct rbd_device *rbd_dev)
rbd_dev->mapping.size = 0;
}
static void zero_bvec(struct bio_vec *bv)
{
void *buf;
unsigned long flags;
buf = bvec_kmap_irq(bv, &flags);
memset(buf, 0, bv->bv_len);
flush_dcache_page(bv->bv_page);
bvec_kunmap_irq(buf, &flags);
}
static void zero_bios(struct ceph_bio_iter *bio_pos, u32 off, u32 bytes)
{
struct ceph_bio_iter it = *bio_pos;
ceph_bio_iter_advance(&it, off);
ceph_bio_iter_advance_step(&it, bytes, ({
zero_bvec(&bv);
memzero_bvec(&bv);
}));
}
@ -1246,7 +1235,7 @@ static void zero_bvecs(struct ceph_bvec_iter *bvec_pos, u32 off, u32 bytes)
ceph_bvec_iter_advance(&it, off);
ceph_bvec_iter_advance_step(&it, bytes, ({
zero_bvec(&bv);
memzero_bvec(&bv);
}));
}