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CGroup API files: move "releasable" to cgroup_debug subsystem

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The "releasable" control file provided by the cgroup framework exports the
state of a per-cgroup flag that's related to the notify-on-release feature.
This isn't really generally useful, unless you're trying to debug this
particular feature of cgroups.

This patch moves the "releasable" file to the cgroup_debug subsystem.

Signed-off-by: Paul Menage <menage@google.com>
Cc: "Li Zefan" <lizf@cn.fujitsu.com>
Cc: Balbir Singh <balbir@in.ibm.com>
Cc: Paul Jackson <pj@sgi.com>
Cc: Pavel Emelyanov <xemul@openvz.org>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: "YAMAMOTO Takashi" <yamamoto@valinux.co.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Paul Menage
2008-04-29 01:00:04 -07:00
committed by Linus Torvalds
parent c27e8818a0
commit 3116f0e3df
3 changed files with 22 additions and 24 deletions
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12
kernel/cgroup_debug.c
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@@ -1,5 +1,5 @@
/*
* kernel/ccontainer_debug.c - Example cgroup subsystem that
* kernel/cgroup_debug.c - Example cgroup subsystem that
* exposes debug info
*
* Copyright (C) Google Inc, 2007
@@ -62,6 +62,11 @@ static u64 current_css_set_refcount_read(struct cgroup *cont,
return count;
}
static u64 releasable_read(struct cgroup *cgrp, struct cftype *cft)
{
return test_bit(CGRP_RELEASABLE, &cgrp->flags);
}
static struct cftype files[] = {
{
.name = "cgroup_refcount",
@@ -81,6 +86,11 @@ static struct cftype files[] = {
.name = "current_css_set_refcount",
.read_u64 = current_css_set_refcount_read,
},
{
.name = "releasable",
.read_u64 = releasable_read,
}
};
static int debug_populate(struct cgroup_subsys *ss, struct cgroup *cont)