| Message ID | 20181128165415.GA38237@192.168.3.9 (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | block: add documentation for io_timeout | expand |
On Thu, 2018-11-29 at 00:54 +0800, Weiping Zhang wrote: > add documentation for /sys/block/<disk>/queue/io_timeout > > Signed-off-by: Weiping Zhang <zhangweiping@didiglobal.com> > --- > Documentation/ABI/testing/sysfs-block | 9 +++++++++ > Documentation/block/queue-sysfs.txt | 6 ++++++ > 2 files changed, 15 insertions(+) > > diff --git a/Documentation/ABI/testing/sysfs-block b/Documentation/ABI/testing/sysfs-block > index dea212db9df3..f37c0000ca16 100644 > --- a/Documentation/ABI/testing/sysfs-block > +++ b/Documentation/ABI/testing/sysfs-block > @@ -271,3 +271,12 @@ Description: > size of 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 timeout in millisecods of a request in > + block layer. The block layer will start a timer when low > + level device driver start the request, and cancle timer > + when request completes. > diff --git a/Documentation/block/queue-sysfs.txt b/Documentation/block/queue-sysfs.txt > index 2c1e67058fd3..cbd44fe056fa 100644 > --- a/Documentation/block/queue-sysfs.txt > +++ b/Documentation/block/queue-sysfs.txt > @@ -67,6 +67,12 @@ If set to a value larger than 0, the kernel will put the process issuing > IO to sleep for this amont of microseconds before entering classic > polling. > > +io_timeout (RW) > +--------------- > +This is the timeout in millisecods of a request in block layer. > +The block layer will start a timer when low level device driver start > +the request, and cancle timer when request completes. > + > iostats (RW) > ------------- > This file is used to control (on/off) the iostats accounting of the Please run this patch through a spelling checker. I think "millisecods" should be changed into "milliseconds" and also that "cancle" should be changed into "cancel". Thanks, Bart.
diff --git a/Documentation/ABI/testing/sysfs-block b/Documentation/ABI/testing/sysfs-block index dea212db9df3..f37c0000ca16 100644 --- a/Documentation/ABI/testing/sysfs-block +++ b/Documentation/ABI/testing/sysfs-block @@ -271,3 +271,12 @@ Description: size of 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 timeout in millisecods of a request in + block layer. The block layer will start a timer when low + level device driver start the request, and cancle timer + when request completes. diff --git a/Documentation/block/queue-sysfs.txt b/Documentation/block/queue-sysfs.txt index 2c1e67058fd3..cbd44fe056fa 100644 --- a/Documentation/block/queue-sysfs.txt +++ b/Documentation/block/queue-sysfs.txt @@ -67,6 +67,12 @@ If set to a value larger than 0, the kernel will put the process issuing IO to sleep for this amont of microseconds before entering classic polling. +io_timeout (RW) +--------------- +This is the timeout in millisecods of a request in block layer. +The block layer will start a timer when low level device driver start +the request, and cancle timer when request completes. + iostats (RW) ------------- This file is used to control (on/off) the iostats accounting of the
add documentation for /sys/block/<disk>/queue/io_timeout Signed-off-by: Weiping Zhang <zhangweiping@didiglobal.com> --- Documentation/ABI/testing/sysfs-block | 9 +++++++++ Documentation/block/queue-sysfs.txt | 6 ++++++ 2 files changed, 15 insertions(+)