Messages in this thread | | | Date | Wed, 27 Jul 2016 10:05:53 -0300 | From | Arnaldo Carvalho de Melo <> | Subject | Re: [PATCH] s390/perf: fix 'start' address of module's map |
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Em Wed, Jul 27, 2016 at 07:24:26PM +1000, Michael Ellerman escreveu: > Arnaldo Carvalho de Melo <acme@kernel.org> writes: > > Em Tue, Jul 26, 2016 at 10:14:18PM +0200, Christian Borntraeger escreveu: > >> On 07/26/2016 09:50 PM, Arnaldo Carvalho de Melo wrote: > >> > So I could as well use what is in /sys/module/tun/sections/.text instead > >> > of reading it from /proc/modules and, in s390, reading it from > >> > /sys/module/tun/sections/.text.
> >> > Do you see any problem with using this approach for _all_ arches?
> >> I think it should work well for _all_ arches but it will probably be > >> hard to test this without help.
> > Well, we could check for the cases we don't know, i.e. read from both > > and warn about cases where it is different, except for s390 where we now > > which is the right one to pick.
> >> I wouldn't be surprised if other architectures than s390 actually have > >> the same issue, so doing this for everybody might atually fix this somewhere > >> else.
> > Would be nice to get info from other arch people, Michael, how this goes > > on ppc?
> It doesn't look like this is a problem on powerpc - at least I haven't > heard of it.
> Looking at a system I have here, for all modules (26) the value in > /proc/modules matches the .text section in /sys.
> So I think using /sys should be fine for us.
Thanks for checking.
- Arnaldo
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