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@xxxxxx>
---
drivers/md/dm-integrity.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/md/dm-integrity.c b/drivers/md/dm-integrity.c
index dc03b70f6e65c..77c1f645f8438 100644
--- a/drivers/md/dm-integrity.c
+++ b/drivers/md/dm-integrity.c
@@ -1765,7 +1765,7 @@ static void integrity_metadata(struct work_struct *w)
char *mem, *checksums_ptr;
again:
- mem = (char *)kmap_atomic(bv.bv_page) + bv.bv_offset;
+ mem = bvec_kmap_local(&bv);
pos = 0;
checksums_ptr = checksums;
do {
@@ -1775,7 +1775,7 @@ static void integrity_metadata(struct work_struct *w)
pos += ic->sectors_per_block << SECTOR_SHIFT;
sector += ic->sectors_per_block;
} while (pos < bv.bv_len && sectors_to_process && checksums != checksums_onstack);
- kunmap_atomic(mem);
+ kunmap_local(mem);
r = dm_integrity_rw_tag(ic, checksums, &dio->metadata_block, &dio->metadata_offset,
checksums_ptr - checksums, dio->op == REQ_OP_READ ? TAG_CMP : TAG_WRITE);
--
2.30.2
--
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