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authorJaroslav Kysela <perex@perex.cz>2010-02-16 11:19:18 +0100
committerJaroslav Kysela <perex@perex.cz>2010-02-16 11:19:18 +0100
commitba9341dfef6b0201cd30e3904dcd0a47d3dc35e0 (patch)
treed83637979db83bb9d5a23e190148b90b60c976d2 /include/linux/blkdev.h
parentd39e82db73eb876c60d00f00219d767b3be30307 (diff)
parentf167e1d073278fe231bbdd5d6c24fb9d091aa544 (diff)
Merge branch 'fixes' into devel
Diffstat (limited to 'include/linux/blkdev.h')
-rw-r--r--include/linux/blkdev.h17
1 files changed, 9 insertions, 8 deletions
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 784a919aa0d..9b98173a818 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -845,7 +845,6 @@ static inline struct request_queue *bdev_get_queue(struct block_device *bdev)
* blk_rq_err_bytes() : bytes left till the next error boundary
* blk_rq_sectors() : sectors left in the entire request
* blk_rq_cur_sectors() : sectors left in the current segment
- * blk_rq_err_sectors() : sectors left till the next error boundary
*/
static inline sector_t blk_rq_pos(const struct request *rq)
{
@@ -874,11 +873,6 @@ static inline unsigned int blk_rq_cur_sectors(const struct request *rq)
return blk_rq_cur_bytes(rq) >> 9;
}
-static inline unsigned int blk_rq_err_sectors(const struct request *rq)
-{
- return blk_rq_err_bytes(rq) >> 9;
-}
-
/*
* Request issue related functions.
*/
@@ -1116,11 +1110,18 @@ static inline int queue_alignment_offset(struct request_queue *q)
return q->limits.alignment_offset;
}
+static inline int queue_limit_alignment_offset(struct queue_limits *lim, sector_t offset)
+{
+ unsigned int granularity = max(lim->physical_block_size, lim->io_min);
+
+ offset &= granularity - 1;
+ return (granularity + lim->alignment_offset - offset) & (granularity - 1);
+}
+
static inline int queue_sector_alignment_offset(struct request_queue *q,
sector_t sector)
{
- return ((sector << 9) - q->limits.alignment_offset)
- & (q->limits.io_min - 1);
+ return queue_limit_alignment_offset(&q->limits, sector << 9);
}
static inline int bdev_alignment_offset(struct block_device *bdev)