From: Tang Yizhou <yizhou.tang@xxxxxxxxxx> The symbol wb_window_usec cannot be found. Update the doc to reflect the latest implementation, in other words, the cur_win_nsec member of struct rq_wb. Signed-off-by: Tang Yizhou <yizhou.tang@xxxxxxxxxx> --- Documentation/ABI/stable/sysfs-block | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/Documentation/ABI/stable/sysfs-block b/Documentation/ABI/stable/sysfs-block index 4ba771b56b3b..7bb4dce73eca 100644 --- a/Documentation/ABI/stable/sysfs-block +++ b/Documentation/ABI/stable/sysfs-block @@ -731,11 +731,11 @@ Contact: linux-block@xxxxxxxxxxxxxxx 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 - 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 - setting. + is exceeded in a given window of time (see the cur_win_nsec + member of struct rq_wb), 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 setting. What: /sys/block/<disk>/queue/write_cache -- 2.25.1