[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [PATCH v11 2/5] missing include asm/paravirt.h in cputime.c
On Tue, Nov 10, 2015 at 11:27:33AM +0000, Stefano Stabellini wrote: > On Mon, 9 Nov 2015, Peter Zijlstra wrote: > > On Thu, Nov 05, 2015 at 05:30:01PM +0000, Stefano Stabellini wrote: > > > On Thu, 5 Nov 2015, Peter Zijlstra wrote: > > > > How can this be missing? Things compile fine now, right? > > > > > > Fair enough. > > > > > > > > > > So please better explain why we do this change. > > > > > > asm/paravirt.h is included by one of the other headers included in > > > kernel/sched/cputime.c on x86, but not on other architecures. On arm and > > > arm64, where I am about to introduce asm/paravirt.h and stolen time > > > support, without #include <asm/paravirt.h> in cputime.c I would get: > > > > > > kernel/sched/cputime.c: In function âsteal_account_process_tickâ: > > > kernel/sched/cputime.c:260:24: error: âparavirt_steal_enabledâ undeclared > > > (first use in this function) > > > if (static_key_false(¶virt_steal_enabled)) { > > > > > > A bit of digging on x86 (using gcc -E on cputime.c) tells me that > > > asm/paravirt.h is coming from the following include chain: > > > > > > #include <kernel/sched/sched.h> > > > #include <linux/spinlock.h> > > > #include <linux/preempt.h> > > > #include <asm/preempt.h> > > > #include <linux/thread_info.h> > > > #include <asm/thread_info.h> > > > #include <asm/processor.h> > > > #include <asm/msr.h> > > > #include <asm/paravirt.h> > > > > > > Fair enough; a slightly shorter version of that for a changelog will do > > nicely. > > Sure. Can I add your Acked-by to it? Yep, no objection if the changelog is updated as per the above. Acked-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx> _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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