diff options
Diffstat (limited to 'block')
| -rw-r--r-- | block/blk-sysfs.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/block/blk-sysfs.c b/block/blk-sysfs.c index be67952e7be2..414f04579d77 100644 --- a/block/blk-sysfs.c +++ b/block/blk-sysfs.c @@ -306,6 +306,11 @@ static ssize_t queue_nr_zones_show(struct request_queue *q, char *page) return queue_var_show(blk_queue_nr_zones(q), page); } +static ssize_t queue_max_open_zones_show(struct request_queue *q, char *page) +{ + return queue_var_show(queue_max_open_zones(q), page); +} + static ssize_t queue_nomerges_show(struct request_queue *q, char *page) { return queue_var_show((blk_queue_nomerges(q) << 1) | @@ -668,6 +673,11 @@ static struct queue_sysfs_entry queue_nr_zones_entry = { .show = queue_nr_zones_show, }; +static struct queue_sysfs_entry queue_max_open_zones_entry = { + .attr = {.name = "max_open_zones", .mode = 0444 }, + .show = queue_max_open_zones_show, +}; + static struct queue_sysfs_entry queue_nomerges_entry = { .attr = {.name = "nomerges", .mode = 0644 }, .show = queue_nomerges_show, @@ -766,6 +776,7 @@ static struct attribute *queue_attrs[] = { &queue_nonrot_entry.attr, &queue_zoned_entry.attr, &queue_nr_zones_entry.attr, + &queue_max_open_zones_entry.attr, &queue_nomerges_entry.attr, &queue_rq_affinity_entry.attr, &queue_iostats_entry.attr, @@ -793,6 +804,10 @@ static umode_t queue_attr_visible(struct kobject *kobj, struct attribute *attr, (!q->mq_ops || !q->mq_ops->timeout)) return 0; + if (attr == &queue_max_open_zones_entry.attr && + !blk_queue_is_zoned(q)) + return 0; + return attr->mode; } |