Messages in this thread |  | | Date | Tue, 14 Apr 2015 19:59:06 -0400 | From | Steven Rostedt <> | Subject | Re: [PATCH 1/3] sched, timer: Remove usages of ACCESS_ONCE in the scheduler |
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On Tue, 14 Apr 2015 16:09:44 -0700 Jason Low <jason.low2@hp.com> wrote:
> @@ -2088,7 +2088,7 @@ void task_numa_fault(int last_cpupid, int mem_node, int pages, int flags) > > static void reset_ptenuma_scan(struct task_struct *p) > { > - ACCESS_ONCE(p->mm->numa_scan_seq)++; > + WRITE_ONCE(p->mm->numa_scan_seq, READ_ONCE(p->mm->numa_scan_seq) + 1);
Is the READ_ONCE() inside the WRITE_ONCE() really necessary?
> p->mm->numa_scan_offset = 0; > } >
-- Steve
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