[dm-devel] [PATCH 11/18] ps3disk: use memcpy_{from,to}_bvec
From: Christoph Hellwig <hch@lst.de>
Date: 2021-06-15 13:31:03
Also in:
ceph-devel, linux-arch, linux-block, linux-mips, linuxppc-dev, lkml
Subsystem:
block layer, ps3 platform support, the rest · Maintainers:
Jens Axboe, Geoff Levand, Linus Torvalds
Use the bvec helpers instead of open coding the copy. Signed-off-by: Christoph Hellwig <hch@lst.de> --- drivers/block/ps3disk.c | 19 +++---------------- 1 file changed, 3 insertions(+), 16 deletions(-)
diff --git a/drivers/block/ps3disk.c b/drivers/block/ps3disk.c
index f374ea2c67ce..b7d4c3efd7a8 100644
--- a/drivers/block/ps3disk.c
+++ b/drivers/block/ps3disk.c@@ -83,26 +83,13 @@ static void ps3disk_scatter_gather(struct ps3_storage_device *dev, unsigned int offset = 0; struct req_iterator iter; struct bio_vec bvec; - unsigned int i = 0; - size_t size; - void *buf; rq_for_each_segment(bvec, req, iter) { - unsigned long flags; - dev_dbg(&dev->sbd.core, "%s:%u: bio %u: %u sectors from %llu\n", - __func__, __LINE__, i, bio_sectors(iter.bio), - iter.bio->bi_iter.bi_sector); - - size = bvec.bv_len; - buf = bvec_kmap_irq(&bvec, &flags); if (gather) - memcpy(dev->bounce_buf+offset, buf, size); + memcpy_from_bvec(dev->bounce_buf + offset, &bvec); else - memcpy(buf, dev->bounce_buf+offset, size); - offset += size; - flush_kernel_dcache_page(bvec.bv_page); - bvec_kunmap_irq(buf, &flags); - i++; + memcpy_to_bvec(&bvec, dev->bounce_buf + offset); + offset += bvec.bv_len; } }
--
2.30.2
--
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