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Thu, 24 Jul 2025 01:30:15 -0700 (PDT) From: Tang Yizhou X-Google-Original-From: Tang Yizhou To: axboe@kernel.dk, hch@lst.de, jack@suse.cz Cc: linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, tangyeechou@gmail.com, Tang Yizhou Subject: [PATCH 3/3] blk-wbt: doc: Update the doc of the wbt_lat_usec interface Date: Thu, 24 Jul 2025 16:30:01 +0800 Message-Id: <20250724083001.362882-4-yizhou.tang@shopee.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20250724083001.362882-1-yizhou.tang@shopee.com> References: <20250724083001.362882-1-yizhou.tang@shopee.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Tang Yizhou 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 --- Documentation/ABI/stable/sysfs-block | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/Documentation/ABI/stable/sysfs-block b/Documentation/ABI/stabl= e/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@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 - 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. =20 =20 What: /sys/block//queue/write_cache --=20 2.25.1