From: Tang Yizhou Date: Sun, 27 Jul 2025 17:39:59 +0000 (+0800) Subject: blk-wbt: doc: Update the doc of the wbt_lat_usec interface X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=0452f08395f8e7d04fe3744443dad396b3330d0c;p=users%2Fhch%2Fmisc.git blk-wbt: doc: Update the doc of the wbt_lat_usec interface The symbol wb_window_usec cannot be found. Update the doc to reflect the latest implementation, in other words, the debugfs interface 'curr_win_nsec'. Signed-off-by: Tang Yizhou Reviewed-by: Jan Kara Reviewed-by: Yu Kuai Link: https://lore.kernel.org/r/20250727173959.160835-4-yizhou.tang@shopee.com Signed-off-by: Jens Axboe --- diff --git a/Documentation/ABI/stable/sysfs-block b/Documentation/ABI/stable/sysfs-block index 803f578dc023..0ddffc9133d0 100644 --- a/Documentation/ABI/stable/sysfs-block +++ b/Documentation/ABI/stable/sysfs-block @@ -731,7 +731,7 @@ Contact: linux-block@vger.kernel.org Description: [RW] If the device is registered for writeback throttling, then this file shows the target minimum read latency. If this latency - is exceeded in a given window of time (see wb_window_usec), then + is exceeded in a given window of time (see curr_win_nsec), then the writeback throttling will start scaling back writes. Writing a value of '0' to this file disables the feature. Writing a value of '-1' to this file resets the value to the default