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 <[email protected]> --- 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 -- dm-devel mailing list [email protected] https://listman.redhat.com/mailman/listinfo/dm-devel
