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![]() Add tracking of REQ_OP_DISCARD ios to the partition statistics and append them to the various stat files in /sys as well as /proc/diskstats. These are tracked with the same four stats as reads and writes: Number of discard ios completed. Number of discard ios merged Number of discard sectors completed Milliseconds spent on discard requests This is done via adding a new STAT_DISCARD define to genhd.h and then using it to index that stat field for discard requests. tj: Refreshed on top of v4.17 and other previous updates. Signed-off-by: Michael Callahan <michaelcallahan@fb.com> Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Andy Newell <newella@fb.com> Signed-off-by: Jens Axboe <axboe@kernel.dk> |
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.. | ||
00-INDEX | ||
bfq-iosched.txt | ||
biodoc.txt | ||
biovecs.txt | ||
capability.txt | ||
cfq-iosched.txt | ||
cmdline-partition.txt | ||
data-integrity.txt | ||
deadline-iosched.txt | ||
ioprio.txt | ||
kyber-iosched.txt | ||
null_blk.txt | ||
pr.txt | ||
queue-sysfs.txt | ||
request.txt | ||
stat.txt | ||
switching-sched.txt | ||
writeback_cache_control.txt |