On Fri, 2007-07-13 at 01:02 -0700, Sven-Thorsten Dietrich wrote: > On Thu, 2007-07-12 at 21:14 -0700, Daniel Walker wrote: > > > > It looks like your patch might be line wrapped ? > > > > I reconstituted the patch to clear the white space damage. > > - Sven > > >From ghaskins@xxxxxxxxxx Thu Jul 12 21:59:46 2007 > Mime-Version: 1.0 > X-Mailer: GroupWise 7.0.2 HP > Subject: [PATCH] RT: add clock.cycle_accumulated to vsyscall gtod update > Date: Thu, 12 Jul 2007 21:59:46 -0600 > Message-ID: <4696C0720200005A0002776A@xxxxxxxxxx> > From: "Gregory Haskins" <ghaskins@xxxxxxxxxx> > To: "Ingo Molnar" <mingo@xxxxxxx>, tglx@xxxxxxxxxxxxx > Cc: "Sven Dietrich" <SDietrich@xxxxxxxxxx>, "David Bahi" <DBahi@xxxxxxxxxx>, linux-rt-users@xxxxxxxxxxxxxxx > Content-Type: text/plain; charset=utf-8 > Content-Disposition: inline > X-Evolution-Source: imap://sdietrich@xxxxxxxxxxxxxxx/ > Content-Transfer-Encoding: 8bit > > 2.6.22 changed the vsyscall mechanism to store a more cache-thrash > friendly version of the gtod data. The original gtod cache code used an > entire struct clock + structure-copy, whereas the new code uses a > pseudo/shadow version + explicit-copy. > > clock.cycle_accumulated was added to RT prior to 2.6.22 so the vsyscall > code must also be updated for the port to 22. > > Signed-off-by: Gregory Haskins <ghaskins@xxxxxxxxxx> > > Acked-by: Sven-Thorsten Dietrich <sven@xxxxxxxxxxxxxxxxxxxxx> Good catch! Acked-by: John Stultz <johnstul@xxxxxxxxxx> > --- > > vsyscall.c | 1 + > 1 file changed, 1 insertion(+) > > Index: linux-2.6.22/arch/x86_64/kernel/vsyscall.c > =================================================================== > --- linux-2.6.22.orig/arch/x86_64/kernel/vsyscall.c > +++ linux-2.6.22/arch/x86_64/kernel/vsyscall.c > @@ -90,6 +90,7 @@ void update_vsyscall(struct timespec *wa > /* copy vsyscall data */ > vsyscall_gtod_data.clock.vread = clock->vread; > vsyscall_gtod_data.clock.cycle_last = clock->cycle_last; > + vsyscall_gtod_data.clock.cycle_accumulated = clock->cycle_accumulated; > vsyscall_gtod_data.clock.mask = clock->mask; > vsyscall_gtod_data.clock.mult = clock->mult; > vsyscall_gtod_data.clock.shift = clock->shift; - To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
