diff options
| author | Christoph Hellwig | 2021-10-19 15:44:05 +0200 |
|---|---|---|
| committer | Mike Snitzer | 2021-11-01 13:28:47 -0400 |
| commit | 27db2717085198862a5b96dc8f00e527bf45c950 (patch) | |
| tree | bc5b8f6b764b5a22d6b5e73914a34bf4a43aebc3 | |
| parent | 25058d1c725c70e52c7750a3fafabb78cadefd9b (diff) | |
dm log writes: use memcpy_from_bvec in log_writes_map
Use memcpy_from_bvec instead of open coding the logic.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
| -rw-r--r-- | drivers/md/dm-log-writes.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/drivers/md/dm-log-writes.c b/drivers/md/dm-log-writes.c index d93a4db23512..eeaf729287f0 100644 --- a/drivers/md/dm-log-writes.c +++ b/drivers/md/dm-log-writes.c @@ -753,7 +753,7 @@ static int log_writes_map(struct dm_target *ti, struct bio *bio) */ bio_for_each_segment(bv, bio, iter) { struct page *page; - void *src, *dst; + void *dst; page = alloc_page(GFP_NOIO); if (!page) { @@ -765,11 +765,9 @@ static int log_writes_map(struct dm_target *ti, struct bio *bio) return DM_MAPIO_KILL; } - src = kmap_atomic(bv.bv_page); dst = kmap_atomic(page); - memcpy(dst, src + bv.bv_offset, bv.bv_len); + memcpy_from_bvec(dst, &bv); kunmap_atomic(dst); - kunmap_atomic(src); block->vecs[i].bv_page = page; block->vecs[i].bv_len = bv.bv_len; block->vec_cnt++; |