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| author |   Martin K. Petersen <martin.petersen@oracle.com> | 2009-06-16 08:23:52 +0200 |
|---|---|---|
| committer |   Jens Axboe <jens.axboe@oracle.com> | 2009-06-16 08:23:52 +0200 |
| commit | e475bba2fdee9c3dbfe25f026f8fb8de69508ad2 (patch) | |
| tree | cb2a050b58fbd8cd7a4d82349164622fedc2c6d0 /include/linux/blkdev.h | |
| parent | cfq: remove extraneous '\n' in blktrace output (diff) | |
| download | linux-dev-e475bba2fdee9c3dbfe25f026f8fb8de69508ad2.tar.xz linux-dev-e475bba2fdee9c3dbfe25f026f8fb8de69508ad2.zip | |
block: Introduce helper to reset queue limits to default values
DM reuses the request queue when swapping in a new device table
Introduce blk_set_default_limits() which can be used to reset the the
queue_limits prior to stacking devices.
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Acked-by: Alasdair G Kergon <agk@redhat.com>
Acked-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Diffstat (limited to 'include/linux/blkdev.h')
| -rw-r--r-- | include/linux/blkdev.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index 0b1a6cae9de1..8963d9149b5f 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -926,6 +926,7 @@ extern void blk_queue_alignment_offset(struct request_queue *q, unsigned int alignment); extern void blk_queue_io_min(struct request_queue *q, unsigned int min); 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 void disk_stack_limits(struct gendisk *disk, struct block_device *bdev, |