>From 3d3a7eafc73f9de3eb6386ba4f30717412b6b255 Mon Sep 17 00:00:00 2001 From: majianpeng <majianpeng@xxxxxxxxx> Date: Sat, 31 Mar 2012 16:01:58 +0800 Subject: [PATCH] md/raid1:use bi->bv_len instead of PAGE_SIZE. If bv_len is less PAGE_SIZE,then memcpy will waste time. Signed-off-by: majianpeng <majianpeng@xxxxxxxxx> --- drivers/md/raid1.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c index 4a40a20..a623f70 100644 --- a/drivers/md/raid1.c +++ b/drivers/md/raid1.c @@ -1775,7 +1775,7 @@ static int process_checks(struct r1bio *r1_bio) size -= PAGE_SIZE; memcpy(page_address(bi->bv_page), page_address(pbio->bi_io_vec[j].bv_page), - PAGE_SIZE); + bi->bv_len); } } return 0; -- 1.7.5.4 -------------- majianpeng 2012-03-31 -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
