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author | Ingo Molnar <mingo@elte.hu> | 2010-01-29 09:24:57 +0100 |
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committer | Ingo Molnar <mingo@elte.hu> | 2010-01-29 10:36:22 +0100 |
commit | ae7f6711d6231c9ba54feb5ba9856c3775e482f8 (patch) | |
tree | 89070c82204b2503348e4fd6c51d25a169375545 /include/linux/blkdev.h | |
parent | perf session: Create kernel maps in the constructor (diff) | |
parent | hw_breakpoints: Release the bp slot if arch_validate_hwbkpt_settings() fails. (diff) | |
download | linux-dev-ae7f6711d6231c9ba54feb5ba9856c3775e482f8.tar.xz linux-dev-ae7f6711d6231c9ba54feb5ba9856c3775e482f8.zip |
Merge branch 'perf/urgent' into perf/core
Merge reason: We want to queue up a dependent patch. Also update to
later -rc's.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include/linux/blkdev.h')
-rw-r--r-- | include/linux/blkdev.h | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index 9b98173a8184..5c8018977efa 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -938,6 +938,8 @@ extern void blk_queue_io_opt(struct request_queue *q, unsigned int opt); extern void blk_set_default_limits(struct queue_limits *lim); extern int blk_stack_limits(struct queue_limits *t, struct queue_limits *b, sector_t offset); +extern int bdev_stack_limits(struct queue_limits *t, struct block_device *bdev, + sector_t offset); extern void disk_stack_limits(struct gendisk *disk, struct block_device *bdev, sector_t offset); extern void blk_queue_stack_limits(struct request_queue *t, struct request_queue *b); @@ -1148,8 +1150,11 @@ static inline int queue_discard_alignment(struct request_queue *q) static inline int queue_sector_discard_alignment(struct request_queue *q, sector_t sector) { - return ((sector << 9) - q->limits.discard_alignment) - & (q->limits.discard_granularity - 1); + struct queue_limits *lim = &q->limits; + unsigned int alignment = (sector << 9) & (lim->discard_granularity - 1); + + return (lim->discard_granularity + lim->discard_alignment - alignment) + & (lim->discard_granularity - 1); } static inline unsigned int queue_discard_zeroes_data(struct request_queue *q) |