From: Tang Yizhou <yizhou.tang@shopee.com>
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 <yizhou.tang@shopee.com>
Subject: [PATCH v2 3/3] blk-wbt: doc: Update the doc of the wbt_lat_usec interface
Date: Mon, 28 Jul 2025 00:47:09 +0800 [thread overview]
Message-ID: <20250727164709.96477-4-yizhou.tang@shopee.com> (raw)
In-Reply-To: <20250727164709.96477-1-yizhou.tang@shopee.com>
From: Tang Yizhou <yizhou.tang@shopee.com>
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@shopee.com>
---
Documentation/ABI/stable/sysfs-block | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/Documentation/ABI/stable/sysfs-block b/Documentation/ABI/stable/sysfs-block
index 4ba771b56b3b..277d89815edd 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 cur_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
--
2.25.1
next prev parent reply other threads:[~2025-07-27 16:47 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-07-27 16:47 [PATCH v2 0/3] Optimize wbt and update its comments and doc Tang Yizhou
2025-07-27 16:47 ` [PATCH v2 1/3] blk-wbt: Optimize wbt_done() for non-throttled writes Tang Yizhou
2025-07-27 16:47 ` [PATCH v2 2/3] blk-wbt: Eliminate ambiguity in the comments of struct rq_wb Tang Yizhou
2025-07-27 16:47 ` Tang Yizhou [this message]
2025-07-27 17:09 ` [PATCH v2 3/3] blk-wbt: doc: Update the doc of the wbt_lat_usec interface Yu Kuai
2025-07-27 17:27 ` Yizhou Tang
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