[RFC PATCH 3/8] null_blk: use memcpy_page() in copy_to_nullb()
From: Chaitanya Kulkarni <hidden>
Date: 2021-02-07 19:06:30
Also in:
linux-ext4, linux-f2fs-devel, linux-fsdevel
Subsystem:
block layer, the rest · Maintainers:
Jens Axboe, Linus Torvalds
Signed-off-by: Chaitanya Kulkarni <redacted> --- drivers/block/null_blk/main.c | 7 +------ 1 file changed, 1 insertion(+), 6 deletions(-)
diff --git a/drivers/block/null_blk/main.c b/drivers/block/null_blk/main.c
index d6c821d48090..c9b6db82b07c 100644
--- a/drivers/block/null_blk/main.c
+++ b/drivers/block/null_blk/main.c@@ -1010,7 +1010,6 @@ static int copy_to_nullb(struct nullb *nullb, struct page *source, size_t temp, count = 0; unsigned int offset; struct nullb_page *t_page; - void *dst, *src; while (count < n) { temp = min_t(size_t, nullb->dev->blocksize, n - count);
@@ -1024,11 +1023,7 @@ static int copy_to_nullb(struct nullb *nullb, struct page *source, if (!t_page) return -ENOSPC; - src = kmap_atomic(source); - dst = kmap_atomic(t_page->page); - memcpy(dst + offset, src + off + count, temp); - kunmap_atomic(dst); - kunmap_atomic(src); + memcpy_page(t_page->page, offset, source, off + count, temp); __set_bit(sector & SECTOR_MASK, t_page->bitmap);
--
2.22.1