From 54850e73e86e3bc092680d1bdb84eb322f982ab1 Mon Sep 17 00:00:00 2001 From: "karam.lee" Date: Fri, 12 Dec 2014 16:56:50 -0800 Subject: [PATCH] zram: change parameter from vaild_io_request() This patch changes parameter of valid_io_request for common usage. The purpose of valid_io_request() is to determine if bio request is valid or not. This patch use I/O start address and size instead of a BIO parameter for common usage. Signed-off-by: karam.lee Acked-by: Minchan Kim Acked-by: Jerome Marchand Cc: Matthew Wilcox Cc: Nitin Gupta Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/block/zram/zram_drv.c | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) diff --git a/drivers/block/zram/zram_drv.c b/drivers/block/zram/zram_drv.c index ac5be75c013f..98af4aae2618 100644 --- a/drivers/block/zram/zram_drv.c +++ b/drivers/block/zram/zram_drv.c @@ -287,19 +287,18 @@ static inline int is_partial_io(struct bio_vec *bvec) /* * Check if request is within bounds and aligned on zram logical blocks. */ -static inline int valid_io_request(struct zram *zram, struct bio *bio) +static inline int valid_io_request(struct zram *zram, + sector_t start, unsigned int size) { - u64 start, end, bound; + u64 end, bound; /* unaligned request */ - if (unlikely(bio->bi_iter.bi_sector & - (ZRAM_SECTOR_PER_LOGICAL_BLOCK - 1))) + if (unlikely(start & (ZRAM_SECTOR_PER_LOGICAL_BLOCK - 1))) return 0; - if (unlikely(bio->bi_iter.bi_size & (ZRAM_LOGICAL_BLOCK_SIZE - 1))) + if (unlikely(size & (ZRAM_LOGICAL_BLOCK_SIZE - 1))) return 0; - start = bio->bi_iter.bi_sector; - end = start + (bio->bi_iter.bi_size >> SECTOR_SHIFT); + end = start + (size >> SECTOR_SHIFT); bound = zram->disksize >> SECTOR_SHIFT; /* out of range range */ if (unlikely(start >= bound || end > bound || start > end)) @@ -915,7 +914,8 @@ static void zram_make_request(struct request_queue *queue, struct bio *bio) if (unlikely(!init_done(zram))) goto error; - if (!valid_io_request(zram, bio)) { + if (!valid_io_request(zram, bio->bi_iter.bi_sector, + bio->bi_iter.bi_size)) { atomic64_inc(&zram->stats.invalid_io); goto error; } -- 2.20.1