From 143a70b8b4300faa92ad82468f65dccd440e7957 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Thu, 3 Mar 2022 14:18:56 +0300 Subject: iss-simdisk: use bvec_kmap_local in simdisk_submit_bio 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 Reviewed-by: Ira Weiny Acked-by: Max Filippov Link: https://lore.kernel.org/r/20220303111905.321089-2-hch@lst.de Signed-off-by: Jens Axboe --- arch/xtensa/platforms/iss/simdisk.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/xtensa/platforms/iss/simdisk.c b/arch/xtensa/platforms/iss/simdisk.c index 8eb6ad1a3a1d..0f0e0724397f 100644 --- a/arch/xtensa/platforms/iss/simdisk.c +++ b/arch/xtensa/platforms/iss/simdisk.c @@ -108,13 +108,13 @@ static void simdisk_submit_bio(struct bio *bio) sector_t sector = bio->bi_iter.bi_sector; bio_for_each_segment(bvec, bio, iter) { - char *buffer = kmap_atomic(bvec.bv_page) + bvec.bv_offset; + char *buffer = bvec_kmap_local(&bvec); unsigned len = bvec.bv_len >> SECTOR_SHIFT; simdisk_transfer(dev, sector, len, buffer, bio_data_dir(bio) == WRITE); sector += len; - kunmap_atomic(buffer); + kunmap_local(buffer); } bio_endio(bio); -- cgit v1.2.3