diff options
| author | Yu Kuai <yukuai3@huawei.com> | 2025-09-10 16:04:45 +0800 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2025-09-10 05:25:56 -0600 |
| commit | a75fe12fa2e2f96b619f25b8cda1fdef6d616ab1 (patch) | |
| tree | 76eb8abc5839e1819137d55c5a746852092b505d | |
| parent | 9784041145796994f2b21f4c7e628d7c9db762f4 (diff) | |
blk-mq: fix stale nr_requests documentation
The nr_requests documentation is still the removed single queue, remove
it and update to current blk-mq.
Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Reviewed-by: Nilay Shroff <nilay@linux.ibm.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
| -rw-r--r-- | Documentation/ABI/stable/sysfs-block | 14 |
1 files changed, 4 insertions, 10 deletions
diff --git a/Documentation/ABI/stable/sysfs-block b/Documentation/ABI/stable/sysfs-block index 0ddffc9133d0..0ed10aeff86b 100644 --- a/Documentation/ABI/stable/sysfs-block +++ b/Documentation/ABI/stable/sysfs-block @@ -603,16 +603,10 @@ Date: July 2003 Contact: linux-block@vger.kernel.org Description: [RW] This controls how many requests may be allocated in the - block layer for read or write requests. Note that the total - allocated number may be twice this amount, since it applies only - to reads or writes (not the accumulated sum). - - To avoid priority inversion through request starvation, a - request queue maintains a separate request pool per each cgroup - when CONFIG_BLK_CGROUP is enabled, and this parameter applies to - each such per-block-cgroup request pool. IOW, if there are N - block cgroups, each request queue may have up to N request - pools, each independently regulated by nr_requests. + block layer. Noted this value only represents the quantity for a + single blk_mq_tags instance. The actual number for the entire + device depends on the hardware queue count, whether elevator is + enabled, and whether tags are shared. What: /sys/block/<disk>/queue/nr_zones |