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| author |   Weiping Zhang <zhangweiping@didiglobal.com> | 2018-12-26 11:56:33 +0800 |
|---|---|---|
| committer |   Jens Axboe <axboe@kernel.dk> | 2019-01-04 19:19:51 -0700 |
| commit | bb351abaf5cd4f9237e1b3094d9cc04853de6d95 (patch) | |
| tree | 0173b76e9df11f30e15aaaff05a0575dc6b89f19 /Documentation/ABI/testing/sysfs-block | |
| parent | Add CREDITS entry for Shaohua Li (diff) | |
| download | linux-dev-bb351abaf5cd4f9237e1b3094d9cc04853de6d95.tar.xz linux-dev-bb351abaf5cd4f9237e1b3094d9cc04853de6d95.zip | |
block: add documentation for io_timeout
Add documentation for /sys/block/<disk>/queue/io_timeout.
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Weiping Zhang <zhangweiping@didiglobal.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'Documentation/ABI/testing/sysfs-block')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-block | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-block b/Documentation/ABI/testing/sysfs-block index 7710d4022b19..dfad7427817c 100644 --- a/Documentation/ABI/testing/sysfs-block +++ b/Documentation/ABI/testing/sysfs-block @@ -279,3 +279,12 @@ Description: size in 512B sectors of the zones of the device, with the eventual exception of the last zone of the device which may be smaller. + +What: /sys/block/<disk>/queue/io_timeout +Date: November 2018 +Contact: Weiping Zhang <zhangweiping@didiglobal.com> +Description: + io_timeout is the request timeout in milliseconds. If a request + does not complete in this time then the block driver timeout + handler is invoked. That timeout handler can decide to retry + the request, to fail it or to start a device recovery strategy. |