mirror of https://gitee.com/openkylin/linux.git
add noinline_for_stack
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>
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@ -138,6 +138,12 @@ extern void __chk_io_ptr(const volatile void __iomem *);
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#define noinline
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#endif
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/*
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* Rather then using noinline to prevent stack consumption, use
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* noinline_for_stack instead. For documentaiton reasons.
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*/
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#define noinline_for_stack noinline
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#ifndef __always_inline
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#define __always_inline inline
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#endif
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