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add noinline_for_stack

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People are adding `noinline' in various places to prevent excess stack
consumption due to gcc inlining.  But once this is done, it is quite unobvious
why the `noinline' is present in the code.  We can comment each and every
site, or we can use noinline_for_stack.

Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Andrew Morton 2008-03-04 14:28:40 -08:00 committed by Linus Torvalds
parent e8ed857c64
commit 735c4fb916
1 changed files with 6 additions and 0 deletions
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6
include/linux/compiler.h
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@ -138,6 +138,12 @@ extern void __chk_io_ptr(const volatile void __iomem *);
#define noinline
#endif
/*
* Rather then using noinline to prevent stack consumption, use
* noinline_for_stack instead. For documentaiton reasons.
*/
#define noinline_for_stack noinline
#ifndef __always_inline
#define __always_inline inline
#endif