On Thu 16-02-12 14:50:47, Peter Zijlstra wrote:
> On Thu, 2012-02-16 at 14:46 +0100, Jan Kara wrote:
> > CC: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
> > CC: Ingo Molnar <mingo@xxxxxxx>
> > CC: Paul Mackerras <paulus@xxxxxxxxx>
> > CC: Arnaldo Carvalho de Melo <acme@xxxxxxxxxxxxxxxxxx>
> > Signed-off-by: Jan Kara <jack@xxxxxxx>
> > ---
> > kernel/events/core.c | 4 +++-
> > 1 files changed, 3 insertions(+), 1 deletions(-)
> >
> > diff --git a/kernel/events/core.c b/kernel/events/core.c
> > index ba36013..61a67f3 100644
> > --- a/kernel/events/core.c
> > +++ b/kernel/events/core.c
> > @@ -3316,8 +3316,10 @@ static int perf_mmap_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
> > int ret = VM_FAULT_SIGBUS;
> >
> > if (vmf->flags & FAULT_FLAG_MKWRITE) {
> > - if (vmf->pgoff == 0)
> > + if (vmf->pgoff == 0) {
> > ret = 0;
> > + file_update_time(vma->vm_file);
> > + }
> > return ret;
> > }
>
> Its an anon filedesc, there's no actual file and while I guess one could
> probably call fstat() on it, people really shouldn't care.
>
> So feel free to introduce this patch to the bitbucket.
Thanks for letting me know. Patch removed.
Honza
--
Jan Kara <jack@xxxxxxx>
SUSE Labs, CR
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