Commit ff3d58c2 authored May 24, 2010 by Akinobu Mita Committed by Linus Torvalds May 25, 2010

highmem: remove unneeded #ifdef CONFIG_TRACE_IRQFLAGS_SUPPORT for debug_kmap_atomic()



In f4112de6 ("mm: introduce
debug_kmap_atomic") I said that debug_kmap_atomic() needs
CONFIG_TRACE_IRQFLAGS_SUPPORT.

It was wrong.  (I thought irqs_disabled() is only available when the
architecture has CONFIG_TRACE_IRQFLAGS_SUPPORT)

Remove the #ifdef CONFIG_TRACE_IRQFLAGS_SUPPORT check to enable
kmap_atomic() debugging for the architectures which do not have
CONFIG_TRACE_IRQFLAGS_SUPPORT.

Reported-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

parent fd23855e

include/linux/highmem.h

+1 −1

Original line number	Diff line number	Diff line
		@@ -27,7 +27,7 @@ static inline void invalidate_kernel_vmap_range(void *vaddr, int size)

		#include <asm/kmap_types.h>

		#if defined(CONFIG_DEBUG_HIGHMEM) && defined(CONFIG_TRACE_IRQFLAGS_SUPPORT)
		#ifdef CONFIG_DEBUG_HIGHMEM

		void debug_kmap_atomic(enum km_type type);

mm/highmem.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -422,7 +422,7 @@ void __init page_address_init(void)

		#endif /* defined(CONFIG_HIGHMEM) && !defined(WANT_PAGE_VIRTUAL) */

		#if defined(CONFIG_DEBUG_HIGHMEM) && defined(CONFIG_TRACE_IRQFLAGS_SUPPORT)
		#ifdef CONFIG_DEBUG_HIGHMEM

		void debug_kmap_atomic(enum km_type type)
		{