Messages in this thread Patch in this message | | | Subject | [PATCH v6 5/6] block: Add blk_queue_max_allocate_sectors() | From | Kirill Tkhai <> | Date | Mon, 10 Feb 2020 12:33:58 +0300 |
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This is a new helper to assign max_allocate_sectors limit of block device queue.
Signed-off-by: Kirill Tkhai <ktkhai@virtuozzo.com> Reviewed-by: Bob Liu <bob.liu@oracle.com> --- block/blk-settings.c | 13 +++++++++++++ include/linux/blkdev.h | 2 ++ 2 files changed, 15 insertions(+)
diff --git a/block/blk-settings.c b/block/blk-settings.c index 8d5df9d37239..24cf8fbbd125 100644 --- a/block/blk-settings.c +++ b/block/blk-settings.c @@ -259,6 +259,19 @@ void blk_queue_max_write_zeroes_sectors(struct request_queue *q, } EXPORT_SYMBOL(blk_queue_max_write_zeroes_sectors); +/** + * blk_queue_max_allocate_sectors - set max sectors for a single + * allocate request + * @q: the request queue for the device + * @max_allocate_sectors: maximum number of sectors to write per command + **/ +void blk_queue_max_allocate_sectors(struct request_queue *q, + unsigned int max_allocate_sectors) +{ + q->limits.max_allocate_sectors = max_allocate_sectors; +} +EXPORT_SYMBOL(blk_queue_max_allocate_sectors); + /** * blk_queue_max_segments - set max hw segments for a request for this queue * @q: the request queue for the device diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index 40707f980a2e..f5edbfea7b84 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -1088,6 +1088,8 @@ extern void blk_queue_max_write_same_sectors(struct request_queue *q, unsigned int max_write_same_sectors); extern void blk_queue_max_write_zeroes_sectors(struct request_queue *q, unsigned int max_write_same_sectors); +extern void blk_queue_max_allocate_sectors(struct request_queue *q, + unsigned int max_allocate_sectors); extern void blk_queue_logical_block_size(struct request_queue *, unsigned int); extern void blk_queue_physical_block_size(struct request_queue *, unsigned int); extern void blk_queue_alignment_offset(struct request_queue *q,
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