On Wed, 2018-12-26 at 11:56 +-0800, Weiping Zhang wrote: +AD4 Add documentation for /sys/block/+ADw-disk+AD4-/queue/io+AF8-timeout. +AD4 +AD4 Signed-off-by: Weiping Zhang +ADw-zhangweiping+AEA-didiglobal.com+AD4 +AD4 --- +AD4 Documentation/ABI/testing/sysfs-block +AHw 9 +-+-+-+-+-+-+-+-+- +AD4 Documentation/block/queue-sysfs.txt +AHw 7 +-+-+-+-+-+-+- +AD4 2 files changed, 16 insertions(+-) +AD4 +AD4 diff --git a/Documentation/ABI/testing/sysfs-block b/Documentation/ABI/testing/sysfs-block +AD4 index 7710d4022b19..dfad7427817c 100644 +AD4 --- a/Documentation/ABI/testing/sysfs-block +AD4 +-+-+- b/Documentation/ABI/testing/sysfs-block +AD4 +AEAAQA -279,3 +-279,12 +AEAAQA Description: +AD4 size in 512B sectors of the zones of the device, with +AD4 the eventual exception of the last zone of the device +AD4 which may be smaller. +AD4 +- +AD4 +-What: /sys/block/+ADw-disk+AD4-/queue/io+AF8-timeout +AD4 +-Date: November 2018 +AD4 +-Contact: Weiping Zhang +ADw-zhangweiping+AEA-didiglobal.com+AD4 +AD4 +-Description: +AD4 +- io+AF8-timeout is the request timeout in milliseconds. If a request +AD4 +- does not complete in this time then the block driver timeout +AD4 +- handler is invoked. That timeout handler can decide to retry +AD4 +- the request, to fail it or to start a device recovery strategy. +AD4 diff --git a/Documentation/block/queue-sysfs.txt b/Documentation/block/queue-sysfs.txt +AD4 index 39e286d7afc9..83b457e24bba 100644 +AD4 --- a/Documentation/block/queue-sysfs.txt +AD4 +-+-+- b/Documentation/block/queue-sysfs.txt +AD4 +AEAAQA -67,6 +-67,13 +AEAAQA If set to a value larger than 0, the kernel will put the process issuing +AD4 IO to sleep for this amount of microseconds before entering classic +AD4 polling. +AD4 +AD4 +-io+AF8-timeout (RW) +AD4 +---------------- +AD4 +-io+AF8-timeout is the request timeout in milliseconds. If a request does not +AD4 +-complete in this time then the block driver timeout handler is invoked. +AD4 +-That timeout handler can decide to retry the request, to fail it or to start +AD4 +-a device recovery strategy. +AD4 +- +AD4 iostats (RW) +AD4 ------------- +AD4 This file is used to control (on/off) the iostats accounting of the Reviewed-by: Bart Van Assche +ADw-bvanassche+AEA-acm.org+AD4
