aboutsummaryrefslogtreecommitdiffstats
path: root/block
diff options
context:
space:
mode:
authorMax Gurtovoy <mgurtovoy@nvidia.com>2021-04-05 13:20:12 +0000
committerJens Axboe <axboe@kernel.dk>2021-04-06 09:23:23 -0600
commit28af742875d7d2d8ae008701c60cd4b238f3e2b2 (patch)
tree2c96a4b8e7c8d6d548e44e081b19fa4bc8be0396 /block
parent430a67f9d6169a7b3e328bceb2ef9542e4153c7c (diff)
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.c9
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,
};

Privacy Policy