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| author | Christoph Hellwig <hch@lst.de> | 2022-03-03 14:19:00 +0300 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2022-03-04 12:29:21 -0700 |
| commit | 20072ec828640b7d23a0cfdbccf0dea48e77ba3e (patch) | |
| tree | 62f0c3fcec0b6509792cb1e0a96835231051ed10 /drivers/nvdimm | |
| parent | bd3d3203eb84d08a6daef805efe9316b79d3bf3c (diff) | |
| download | linux-20072ec828640b7d23a0cfdbccf0dea48e77ba3e.tar.gz linux-20072ec828640b7d23a0cfdbccf0dea48e77ba3e.tar.bz2 linux-20072ec828640b7d23a0cfdbccf0dea48e77ba3e.zip | |
nvdimm-blk: use bvec_kmap_local in nd_blk_rw_integrity
Using local kmaps slightly reduces the chances to stray writes, and
the bvec interface cleans up the code a little bit.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Link: https://lore.kernel.org/r/20220303111905.321089-6-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/nvdimm')
| -rw-r--r-- | drivers/nvdimm/blk.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/drivers/nvdimm/blk.c b/drivers/nvdimm/blk.c index c1db43524d75..0a3873833594 100644 --- a/drivers/nvdimm/blk.c +++ b/drivers/nvdimm/blk.c @@ -88,10 +88,9 @@ static int nd_blk_rw_integrity(struct nd_namespace_blk *nsblk, */ cur_len = min(len, bv.bv_len); - iobuf = kmap_atomic(bv.bv_page); - err = ndbr->do_io(ndbr, dev_offset, iobuf + bv.bv_offset, - cur_len, rw); - kunmap_atomic(iobuf); + iobuf = bvec_kmap_local(&bv); + err = ndbr->do_io(ndbr, dev_offset, iobuf, cur_len, rw); + kunmap_local(iobuf); if (err) return err; |