diff options
| author | Keith Busch <kbusch@kernel.org> | 2023-01-05 23:51:46 +0300 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2023-01-30 01:18:33 +0300 |
| commit | c9c77418a98273fe96835c42666f7427b3883f48 (patch) | |
| tree | ab45a1f2d1e3491b68a6baf62661e7ca4f2f68a8 /include | |
| parent | 0a26f327e46c203229e72c823dfec71a2b405ec5 (diff) | |
| download | linux-c9c77418a98273fe96835c42666f7427b3883f48.tar.xz | |
block: save user max_sectors limit
The user can set the max_sectors limit to any valid value via sysfs
/sys/block/<dev>/queue/max_sectors_kb attribute. If the device limits
are ever rescanned, though, the limit reverts back to the potentially
artificially low BLK_DEF_MAX_SECTORS value.
Preserve the user's setting as the max_sectors limit as long as it's
valid. The user can reset back to defaults by writing 0 to the sysfs
file.
Signed-off-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Link: https://lore.kernel.org/r/20230105205146.3610282-3-kbusch@meta.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'include')
| -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 2b85161e2256..b87ed829ab94 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -288,6 +288,7 @@ struct queue_limits { unsigned int max_dev_sectors; unsigned int chunk_sectors; unsigned int max_sectors; + unsigned int max_user_sectors; unsigned int max_segment_size; unsigned int physical_block_size; unsigned int logical_block_size; |