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Date: Sat, 21 Nov 2015 17:27:31 +0800 From: Geliang Tang <geliangtang@....com> To: Jens Axboe <axboe@...nel.dk> Cc: Geliang Tang <geliangtang@....com>, linux-block@...r.kernel.org, linux-kernel@...r.kernel.org Subject: [PATCH] bio: use offset_in_page macro Use offset_in_page macro instead of (addr & ~PAGE_MASK). Signed-off-by: Geliang Tang <geliangtang@....com> --- block/bio.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/block/bio.c b/block/bio.c index 4f184d9..dbabd48 100644 --- a/block/bio.c +++ b/block/bio.c @@ -1125,7 +1125,7 @@ struct bio *bio_copy_user_iov(struct request_queue *q, int i, ret; int nr_pages = 0; unsigned int len = iter->count; - unsigned int offset = map_data ? map_data->offset & ~PAGE_MASK : 0; + unsigned int offset = map_data ? offset_in_page(map_data->offset) : 0; for (i = 0; i < iter->nr_segs; i++) { unsigned long uaddr; @@ -1304,7 +1304,7 @@ struct bio *bio_map_user_iov(struct request_queue *q, goto out_unmap; } - offset = uaddr & ~PAGE_MASK; + offset = offset_in_page(uaddr); for (j = cur_page; j < page_limit; j++) { unsigned int bytes = PAGE_SIZE - offset; -- 2.5.0 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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