Commit c9169291 authored by Xiu Jianfeng's avatar Xiu Jianfeng Committed by Tejun Heo
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docs, cgroup: add entries for pids to cgroup-v2.rst 



This patch add two entries (pids.peak and pids.events) for pids
controller, and also update pids.current because it's on non-root.

Signed-off-by: default avatarXiu Jianfeng <xiujianfeng@huawei.com>
Signed-off-by: default avatarTejun Heo <tj@kernel.org>
parent 15a0b5fe

Documentation/admin-guide/cgroup-v2.rst

+15 −1
Original line number Diff line number Diff line
@@ -2184,11 +2184,25 @@ PID Interface Files 
	Hard limit of number of processes.



  pids.current

	A read-only single value file which exists on all cgroups.

	A read-only single value file which exists on non-root cgroups.



	The number of processes currently in the cgroup and its

	descendants.



  pids.peak

	A read-only single value file which exists on non-root cgroups.



	The maximum value that the number of processes in the cgroup and its

	descendants has ever reached.



  pids.events

	A read-only flat-keyed file which exists on non-root cgroups. The

	following entries are defined. Unless specified otherwise, a value

	change in this file generates a file modified event.



	  max

		Number of times fork failed because limit was hit.



Organisational operations are not blocked by cgroup policies, so it is

possible to have pids.current > pids.max.  This can be done by either

setting the limit to be smaller than pids.current, or attaching enough