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cgroup: kill cgrp_ss_priv[CGROUP_CANFORK_COUNT] and friends

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Now that nobody use the "priv" arg passed to can_fork/cancel_fork/fork we can
kill CGROUP_CANFORK_COUNT/SUBSYS_TAG/etc and cgrp_ss_priv[] in copy_process().

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
This commit is contained in:
Oleg Nesterov 2015-12-03 10:24:08 -05:00 • committed by Tejun Heo
parent 8075b542cf
commit b53202e630
8 changed files with 23 additions and 71 deletions
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18
include/linux/cgroup_subsys.h
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@ -6,14 +6,8 @@
/*
* This file *must* be included with SUBSYS() defined.
* SUBSYS_TAG() is a noop if undefined.
*/
#ifndef SUBSYS_TAG
#define __TMP_SUBSYS_TAG
#define SUBSYS_TAG(_x)
#endif
#if IS_ENABLED(CONFIG_CPUSETS)
SUBSYS(cpuset)
#endif
@ -58,17 +52,10 @@ SUBSYS(net_prio)
SUBSYS(hugetlb)
#endif
/*
* Subsystems that implement the can_fork() family of callbacks.
*/
SUBSYS_TAG(CANFORK_START)
#if IS_ENABLED(CONFIG_CGROUP_PIDS)
SUBSYS(pids)
#endif
SUBSYS_TAG(CANFORK_END)
/*
* The following subsystems are not supported on the default hierarchy.
*/
@ -76,11 +63,6 @@ SUBSYS_TAG(CANFORK_END)
SUBSYS(debug)
#endif
#ifdef __TMP_SUBSYS_TAG
#undef __TMP_SUBSYS_TAG
#undef SUBSYS_TAG
#endif
/*
* DO NOT ADD ANY SUBSYSTEM WITHOUT EXPLICIT ACKS FROM CGROUP MAINTAINERS.
*/