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authorAndrew Morton <akpm@linux-foundation.org>2008-03-04 14:28:40 -0800
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2008-03-04 16:35:12 -0800
commit735c4fb916e9f83a9350aeb2680d77d01ea75094 (patch)
tree1e6a80c0aca5982af0ba96f8ab87e5512ad3c9dc
parente8ed857c64e3ae62e27606ae58bc7371b5daccb1 (diff)
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>
-rw-r--r--include/linux/compiler.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/compiler.h b/include/linux/compiler.h
index d0e17e1657d..dcae0c8d97e 100644
--- a/include/linux/compiler.h
+++ b/include/linux/compiler.h
@@ -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