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| author | Max Gurtovoy <mgurtovoy@nvidia.com> | 2021-04-05 13:20:12 +0000 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2021-04-06 09:23:23 -0600 |
| commit | 28af742875d7d2d8ae008701c60cd4b238f3e2b2 (patch) | |
| tree | 2c96a4b8e7c8d6d548e44e081b19fa4bc8be0396 /block | |
| parent | 430a67f9d6169a7b3e328bceb2ef9542e4153c7c (diff) | |
| download | lwn-28af742875d7d2d8ae008701c60cd4b238f3e2b2.tar.gz lwn-28af742875d7d2d8ae008701c60cd4b238f3e2b2.zip | |
block: add sysfs entry for virt boundary mask
This entry will expose the bio vector alignment mask for a specific
block device.
Signed-off-by: Max Gurtovoy <mgurtovoy@nvidia.com>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Link: https://lore.kernel.org/r/20210405132012.12504-1-mgurtovoy@nvidia.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block')
| -rw-r--r-- | block/blk-sysfs.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/block/blk-sysfs.c b/block/blk-sysfs.c index 0f4f0c8a7825..e03bedf180ab 100644 --- a/block/blk-sysfs.c +++ b/block/blk-sysfs.c @@ -60,7 +60,7 @@ static ssize_t queue_var_store64(s64 *var, const char *page) static ssize_t queue_requests_show(struct request_queue *q, char *page) { - return queue_var_show(q->nr_requests, (page)); + return queue_var_show(q->nr_requests, page); } static ssize_t @@ -264,6 +264,11 @@ static ssize_t queue_max_hw_sectors_show(struct request_queue *q, char *page) return queue_var_show(max_hw_sectors_kb, (page)); } +static ssize_t queue_virt_boundary_mask_show(struct request_queue *q, char *page) +{ + return queue_var_show(q->limits.virt_boundary_mask, (page)); +} + #define QUEUE_SYSFS_BIT_FNS(name, flag, neg) \ static ssize_t \ queue_##name##_show(struct request_queue *q, char *page) \ @@ -610,6 +615,7 @@ QUEUE_RO_ENTRY(queue_fua, "fua"); QUEUE_RO_ENTRY(queue_dax, "dax"); QUEUE_RW_ENTRY(queue_io_timeout, "io_timeout"); QUEUE_RW_ENTRY(queue_wb_lat, "wbt_lat_usec"); +QUEUE_RO_ENTRY(queue_virt_boundary_mask, "virt_boundary_mask"); #ifdef CONFIG_BLK_DEV_THROTTLING_LOW QUEUE_RW_ENTRY(blk_throtl_sample_time, "throttle_sample_time"); @@ -670,6 +676,7 @@ static struct attribute *queue_attrs[] = { #ifdef CONFIG_BLK_DEV_THROTTLING_LOW &blk_throtl_sample_time_entry.attr, #endif + &queue_virt_boundary_mask_entry.attr, NULL, }; |