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Date: Tue, 6 Dec 2011 08:35:10 -0800 From: Tejun Heo <tj@...nel.org> To: "Srivatsa S. Bhat" <srivatsa.bhat@...ux.vnet.ibm.com> Cc: rjw@...k.pl, pavel@....cz, len.brown@...el.com, oleg@...hat.com, linux-kernel@...r.kernel.org, linux-pm@...r.kernel.org Subject: Re: [PATCH 1/2] PM / Freezer: Remove the "userspace only" constraint from freezer[_do_not]_count() On Tue, Dec 06, 2011 at 09:33:44PM +0530, Srivatsa S. Bhat wrote: > At present, the functions freezer_count() and freezer_do_not_count() > impose the restriction that they are effective only for userspace processes. > However, now, these functions have found more utility than originally > intended by the commit which introduced it: ba96a0c8 (freezer: > fix vfork problem). And moreover, even the vfork issue does not need > the above restriction in these functions, since they are anyway called by > userspace processes. > > So, modify these functions to make them work even for kernel threads, so > that they can be used at other places in the kernel, where the userspace > restriction doesn't apply. > > Suggested-by: Oleg Nesterov <oleg@...hat.com> > Suggested-by: Tejun Heo <tj@...nel.org> > Signed-off-by: Srivatsa S. Bhat <srivatsa.bhat@...ux.vnet.ibm.com> Acked-by: Tejun Heo <tj@...nel.org> Thanks. -- tejun -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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