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linux-imx/Documentation/ABI/testing/procfs-diskstats
Mauro Carvalho Chehab 54a19b4d3f docs: ABI: cleanup several ABI documents 
There are some ABI documents that, while they don't generate
any warnings, they have issues when parsed by get_abi.pl script
on its output result.

Address them, in order to provide a clean output.

Reviewed-by: Tom Rix <trix@redhat.com> # for fpga-manager
Reviewed-By: Kajol Jain<kjain@linux.ibm.com> # for sysfs-bus-event_source-devices-hv_gpci and sysfs-bus-event_source-devices-hv_24x7
Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> #for IIO
Acked-by: Oded Gabbay <oded.gabbay@gmail.com> # for Habanalabs
Acked-by: Vaibhav Jain <vaibhav@linux.ibm.com> # for sysfs-bus-papr-pmem
Acked-by: Cezary Rojewski <cezary.rojewski@intel.com> # for catpt
Acked-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Acked-by: Ilya Dryomov <idryomov@gmail.com> # for rbd
Acked-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/5bc78e5b68ed1e9e39135173857cb2e753be868f.1604042072.git.mchehab+huawei@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-10-30 13:14:29 +01:00

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What: /proc/diskstats Date: February 2008 Contact: Jerome Marchand jmarchan@redhat.com Description: The /proc/diskstats file displays the I/O statistics of block devices. Each line contains the following 14 fields:

	==  ===================================
	 1  major number
	 2  minor mumber
	 3  device name
	 4  reads completed successfully
	 5  reads merged
	 6  sectors read
	 7  time spent reading (ms)
	 8  writes completed
	 9  writes merged
	10  sectors written
	11  time spent writing (ms)
	12  I/Os currently in progress
	13  time spent doing I/Os (ms)
	14  weighted time spent doing I/Os (ms)
	==  ===================================

	Kernel 4.18+ appends four more fields for discard
	tracking putting the total at 18:

	==  ===================================
	15  discards completed successfully
	16  discards merged
	17  sectors discarded
	18  time spent discarding
	==  ===================================

	Kernel 5.5+ appends two more fields for flush requests:

	==  =====================================
	19  flush requests completed successfully
	20  time spent flushing
	==  =====================================

	For more details refer to Documentation/admin-guide/iostats.rst