diff options
Diffstat (limited to 'block/blk-sysfs.c')
| -rw-r--r-- | block/blk-sysfs.c | 31 |
1 files changed, 5 insertions, 26 deletions
diff --git a/block/blk-sysfs.c b/block/blk-sysfs.c index fdb45fd0db0b..fa831cb2fc30 100644 --- a/block/blk-sysfs.c +++ b/block/blk-sysfs.c @@ -503,26 +503,6 @@ static ssize_t queue_dax_show(struct request_queue *q, char *page) return queue_var_show(blk_queue_dax(q), page); } -static ssize_t print_stat(char *page, struct blk_rq_stat *stat, const char *pre) -{ - return sprintf(page, "%s samples=%llu, mean=%lld, min=%lld, max=%lld\n", - pre, (long long) stat->nr_samples, - (long long) stat->mean, (long long) stat->min, - (long long) stat->max); -} - -static ssize_t queue_stats_show(struct request_queue *q, char *page) -{ - struct blk_rq_stat stat[2]; - ssize_t ret; - - blk_queue_stat_get(q, stat); - - ret = print_stat(page, &stat[READ], "read :"); - ret += print_stat(page + ret, &stat[WRITE], "write:"); - return ret; -} - static struct queue_sysfs_entry queue_requests_entry = { .attr = {.name = "nr_requests", .mode = S_IRUGO | S_IWUSR }, .show = queue_requests_show, @@ -691,11 +671,6 @@ static struct queue_sysfs_entry queue_dax_entry = { .show = queue_dax_show, }; -static struct queue_sysfs_entry queue_stats_entry = { - .attr = {.name = "stats", .mode = S_IRUGO }, - .show = queue_stats_show, -}; - static struct queue_sysfs_entry queue_wb_lat_entry = { .attr = {.name = "wbt_lat_usec", .mode = S_IRUGO | S_IWUSR }, .show = queue_wb_lat_show, @@ -733,7 +708,6 @@ static struct attribute *default_attrs[] = { &queue_poll_entry.attr, &queue_wc_entry.attr, &queue_dax_entry.attr, - &queue_stats_entry.attr, &queue_wb_lat_entry.attr, &queue_poll_delay_entry.attr, NULL, @@ -811,6 +785,9 @@ static void blk_release_queue(struct kobject *kobj) container_of(kobj, struct request_queue, kobj); wbt_exit(q); + if (test_bit(QUEUE_FLAG_POLL_STATS, &q->queue_flags)) + blk_stat_remove_callback(q, q->poll_cb); + blk_stat_free_callback(q->poll_cb); bdi_put(q->backing_dev_info); blkcg_exit_queue(q); @@ -819,6 +796,8 @@ static void blk_release_queue(struct kobject *kobj) elevator_exit(q->elevator); } + blk_free_queue_stats(q->stats); + blk_exit_rl(&q->root_rl); if (q->queue_tags) |