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Date: Thu, 7 Feb 2008 15:26:32 -0800 From: Andrew Morton <akpm@...ux-foundation.org> To: Eric Sandeen <sandeen@...hat.com> Cc: linux-kernel@...r.kernel.org Subject: Re: [PATCH] reduce large do_mount stack usage with noinlines On Thu, 07 Feb 2008 17:08:19 -0600 Eric Sandeen <sandeen@...hat.com> wrote: > Index: linux-2.6.24-mm1/include/linux/compiler-gcc.h > =================================================================== > --- linux-2.6.24-mm1.orig/include/linux/compiler-gcc.h > +++ linux-2.6.24-mm1/include/linux/compiler-gcc.h > @@ -53,3 +53,9 @@ > #define noinline __attribute__((noinline)) > #define __attribute_const__ __attribute__((__const__)) > #define __maybe_unused __attribute__((unused)) > + > +/* > + * When gcc inlines multiple functions into a parent function, > + * the stack space used sometimes increases excessively... > + */ > +#define noinline_stackspace noinline > > > ? > > I couldn't think of a great name for it. There are several noinline > users throughout the kernel with stackspace related comments, so if > desired, I could sprinkle this around. I'm not very pleased with it > aesthetically though. :) I think it's fine. People can go look at the definition site, read the comment and come away happy. -- 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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