diff options
Diffstat (limited to 'block')
| -rw-r--r-- | block/blk-sysfs.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/block/blk-sysfs.c b/block/blk-sysfs.c index 94e1b052abbc..59685918167e 100644 --- a/block/blk-sysfs.c +++ b/block/blk-sysfs.c @@ -468,6 +468,9 @@ static ssize_t queue_wb_lat_store(struct request_queue *q, const char *page, else if (val >= 0) val *= 1000ULL; + if (wbt_get_min_lat(q) == val) + return count; + /* * Ensure that the queue is idled, in case the latency update * ends up either enabling or disabling wbt completely. We can't |