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Date: Sun, 13 Jul 2008 01:26:30 -0700 From: Andrew Morton <akpm@...ux-foundation.org> To: "Jakub W. Jozwicki" <jozwicki@...er.pl> Cc: linux-kernel@...r.kernel.org Subject: Re: [PATCH 2.6.25.10 1/2] libata: fix locking for kmap_atomic On Sun, 13 Jul 2008 01:27:36 +0200 "Jakub W. Jozwicki" <jozwicki@...er.pl> wrote: > Change locking surrounding kmap_atomic from local_irqsave to > local_irqsave_nort. This fixes issues with PREEMPT_RT. > I assume this is a -rt kernel patch. > > --- linux-2.6.25.10/drivers/ata/libata-core.c 2008-07-03 05:46:47.000000000 > +0200 > +++ linux-2.6.25.10-rt7/drivers/ata/libata-core.c 2008-07-12 > 23:59:33.132140258 +0200 > @@ -5157,14 +5157,14 @@ > unsigned long flags; > > /* FIXME: use a bounce buffer */ > - local_irq_save(flags); > + local_irq_save_nort(flags); eww. If we're going to have to do stuff like this in mainline then there might be a revolt. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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