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| author | Paul Menage <menage@google.com> | 2008-04-29 01:00:04 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-04-29 08:06:09 -0700 |
| commit | 3116f0e3df0a67ad56f15dd4c5f6cefb04bb4a98 (patch) | |
| tree | 27dc8e1000eb7c3e36157963415a0bc8b8555e44 /kernel/cgroup_debug.c | |
| parent | c27e8818a09bbdfe7c07c629cb2c27e1a742e156 (diff) | |
| download | op-kernel-dev-3116f0e3df0a67ad56f15dd4c5f6cefb04bb4a98.zip op-kernel-dev-3116f0e3df0a67ad56f15dd4c5f6cefb04bb4a98.tar.gz | |
CGroup API files: move "releasable" to cgroup_debug subsystem
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>
Diffstat (limited to 'kernel/cgroup_debug.c')
| -rw-r--r-- | kernel/cgroup_debug.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/kernel/cgroup_debug.c b/kernel/cgroup_debug.c index cbb7a26..c3dc3ab 100644 --- a/kernel/cgroup_debug.c +++ b/kernel/cgroup_debug.c @@ -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) |
