Messages in this thread | | | Date | Fri, 07 Mar 2008 09:05:39 +0900 | From | Li Zefan <> | Subject | Re: [PATCH] Add cgroup support for enabling controllers at boot time |
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Randy Dunlap wrote: > On Fri, 07 Mar 2008 00:29:52 +0530 Balbir Singh wrote: > >> From: Paul Menage <menage@google.com> >> >> The effects of cgroup_disable=foo are: >> >> - foo doesn't show up in /proc/cgroups >> - foo isn't auto-mounted if you mount all cgroups in a single hierarchy >> - foo isn't visible as an individually mountable subsystem >> >> As a result there will only ever be one call to foo->create(), at init >> time; all processes will stay in this group, and the group will never >> be mounted on a visible hierarchy. Any additional effects (e.g. not >> allocating metadata) are up to the foo subsystem. >> >> This doesn't handle early_init subsystems (their "disabled" bit isn't >> set be, but it could easily be extended to do so if any of the early_init >> systems wanted it - I think it would just involve some nastier parameter >> processing since it would occur before the command-line argument parser >> had been run. >> >> [Balbir added Documentation/kernel-parameters updates] >> >> Signed-off-by: Paul Menage <menage@google.com> >> Signed-off-by: Balbir Singh <balbir@linux.vnet.ibm.com> >> --- >> >> Documentation/kernel-parameters.txt | 4 ++++ >> include/linux/cgroup.h | 1 + >> kernel/cgroup.c | 27 +++++++++++++++++++++++++-- >> 3 files changed, 30 insertions(+), 2 deletions(-) >> >> diff -puN Documentation/kernel-parameters.txt~cgroup_disable Documentation/kernel-parameters.txt >> --- linux-2.6.25-rc4/Documentation/kernel-parameters.txt~cgroup_disable 2008-03-06 17:57:32.000000000 +0530 >> +++ linux-2.6.25-rc4-balbir/Documentation/kernel-parameters.txt 2008-03-06 18:00:32.000000000 +0530 >> @@ -383,6 +383,10 @@ and is between 256 and 4096 characters. >> ccw_timeout_log [S390] >> See Documentation/s390/CommonIO for details. >> >> + cgroup_disable= [KNL] Enable disable a particular controller > > So it can enable or disable? or the text has extra text? >
don't think so, should be "Disable a particular controller"
>> + Format: {name of the controller} >> + See /proc/cgroups for a list of compiled controllers >> + >> checkreqprot [SELINUX] Set initial checkreqprot flag value. >> Format: { "0" | "1" } >> See security/selinux/Kconfig help text. > > > --- > ~Randy > >
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