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authorAkinobu Mita <akinobu.mita@gmail.com>2009-04-02 19:56:30 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2009-04-02 22:04:48 -0400
commitee3b4290aec03022cfb67c9adba9f1b3215245f0 (patch)
tree37130f5de4d5ccd2be4902dc3dec9ec6a371c2ed
parent833bb3046b6cb320e775ea2160ddca87d53260d5 (diff)
generic debug pagealloc: build fix
This fixes a build failure with generic debug pagealloc: mm/debug-pagealloc.c: In function 'set_page_poison': mm/debug-pagealloc.c:8: error: 'struct page' has no member named 'debug_flags' mm/debug-pagealloc.c: In function 'clear_page_poison': mm/debug-pagealloc.c:13: error: 'struct page' has no member named 'debug_flags' mm/debug-pagealloc.c: In function 'page_poison': mm/debug-pagealloc.c:18: error: 'struct page' has no member named 'debug_flags' mm/debug-pagealloc.c: At top level: mm/debug-pagealloc.c:120: error: redefinition of 'kernel_map_pages' include/linux/mm.h:1278: error: previous definition of 'kernel_map_pages' was here mm/debug-pagealloc.c: In function 'kernel_map_pages': mm/debug-pagealloc.c:122: error: 'debug_pagealloc_enabled' undeclared (first use in this function) by fixing - debug_flags should be in struct page - define DEBUG_PAGEALLOC config option for all architectures Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Reported-by: Alexander Beregalov <a.beregalov@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--arch/powerpc/Kconfig.debug10
-rw-r--r--arch/s390/Kconfig.debug9
-rw-r--r--arch/sparc/Kconfig.debug9
-rw-r--r--arch/x86/Kconfig.debug9
-rw-r--r--include/linux/mm_types.h6
-rw-r--r--mm/Kconfig.debug9
6 files changed, 12 insertions, 40 deletions
diff --git a/arch/powerpc/Kconfig.debug b/arch/powerpc/Kconfig.debug
index 6aa0b5e087cd..a1098e23221f 100644
--- a/arch/powerpc/Kconfig.debug
+++ b/arch/powerpc/Kconfig.debug
@@ -27,16 +27,6 @@ config DEBUG_STACK_USAGE
27 27
28 This option will slow down process creation somewhat. 28 This option will slow down process creation somewhat.
29 29
30config DEBUG_PAGEALLOC
31 bool "Debug page memory allocations"
32 depends on DEBUG_KERNEL && !HIBERNATION
33 depends on ARCH_SUPPORTS_DEBUG_PAGEALLOC
34 help
35 Unmap pages from the kernel linear mapping after free_pages().
36 This results in a large slowdown, but helps to find certain types
37 of memory corruptions.
38
39
40config HCALL_STATS 30config HCALL_STATS
41 bool "Hypervisor call instrumentation" 31 bool "Hypervisor call instrumentation"
42 depends on PPC_PSERIES && DEBUG_FS 32 depends on PPC_PSERIES && DEBUG_FS
diff --git a/arch/s390/Kconfig.debug b/arch/s390/Kconfig.debug
index 7e297a3cde34..2283933a9a93 100644
--- a/arch/s390/Kconfig.debug
+++ b/arch/s390/Kconfig.debug
@@ -6,13 +6,4 @@ config TRACE_IRQFLAGS_SUPPORT
6 6
7source "lib/Kconfig.debug" 7source "lib/Kconfig.debug"
8 8
9config DEBUG_PAGEALLOC
10 bool "Debug page memory allocations"
11 depends on DEBUG_KERNEL
12 depends on ARCH_SUPPORTS_DEBUG_PAGEALLOC
13 help
14 Unmap pages from the kernel linear mapping after free_pages().
15 This results in a slowdown, but helps to find certain types of
16 memory corruptions.
17
18endmenu 9endmenu
diff --git a/arch/sparc/Kconfig.debug b/arch/sparc/Kconfig.debug
index d001b42041a5..90d5fe223a74 100644
--- a/arch/sparc/Kconfig.debug
+++ b/arch/sparc/Kconfig.debug
@@ -22,15 +22,6 @@ config DEBUG_DCFLUSH
22config STACK_DEBUG 22config STACK_DEBUG
23 bool "Stack Overflow Detection Support" 23 bool "Stack Overflow Detection Support"
24 24
25config DEBUG_PAGEALLOC
26 bool "Debug page memory allocations"
27 depends on DEBUG_KERNEL && !HIBERNATION
28 depends on ARCH_SUPPORTS_DEBUG_PAGEALLOC
29 help
30 Unmap pages from the kernel linear mapping after free_pages().
31 This results in a large slowdown, but helps to find certain types
32 of memory corruptions.
33
34config MCOUNT 25config MCOUNT
35 bool 26 bool
36 depends on SPARC64 27 depends on SPARC64
diff --git a/arch/x86/Kconfig.debug b/arch/x86/Kconfig.debug
index a345cb5447a8..d8359e73317f 100644
--- a/arch/x86/Kconfig.debug
+++ b/arch/x86/Kconfig.debug
@@ -72,15 +72,6 @@ config DEBUG_STACK_USAGE
72 72
73 This option will slow down process creation somewhat. 73 This option will slow down process creation somewhat.
74 74
75config DEBUG_PAGEALLOC
76 bool "Debug page memory allocations"
77 depends on DEBUG_KERNEL
78 depends on ARCH_SUPPORTS_DEBUG_PAGEALLOC
79 ---help---
80 Unmap pages from the kernel linear mapping after free_pages().
81 This results in a large slowdown, but helps to find certain types
82 of memory corruptions.
83
84config DEBUG_PER_CPU_MAPS 75config DEBUG_PER_CPU_MAPS
85 bool "Debug access to per_cpu maps" 76 bool "Debug access to per_cpu maps"
86 depends on DEBUG_KERNEL 77 depends on DEBUG_KERNEL
diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h
index ddadb4defe00..0e80e26ecf21 100644
--- a/include/linux/mm_types.h
+++ b/include/linux/mm_types.h
@@ -95,6 +95,9 @@ struct page {
95 void *virtual; /* Kernel virtual address (NULL if 95 void *virtual; /* Kernel virtual address (NULL if
96 not kmapped, ie. highmem) */ 96 not kmapped, ie. highmem) */
97#endif /* WANT_PAGE_VIRTUAL */ 97#endif /* WANT_PAGE_VIRTUAL */
98#ifdef CONFIG_WANT_PAGE_DEBUG_FLAGS
99 unsigned long debug_flags; /* Use atomic bitops on this */
100#endif
98}; 101};
99 102
100/* 103/*
@@ -175,9 +178,6 @@ struct vm_area_struct {
175#ifdef CONFIG_NUMA 178#ifdef CONFIG_NUMA
176 struct mempolicy *vm_policy; /* NUMA policy for the VMA */ 179 struct mempolicy *vm_policy; /* NUMA policy for the VMA */
177#endif 180#endif
178#ifdef CONFIG_WANT_PAGE_DEBUG_FLAGS
179 unsigned long debug_flags; /* Use atomic bitops on this */
180#endif
181}; 181};
182 182
183struct core_thread { 183struct core_thread {
diff --git a/mm/Kconfig.debug b/mm/Kconfig.debug
index c8d62d49a44e..bb01e298f260 100644
--- a/mm/Kconfig.debug
+++ b/mm/Kconfig.debug
@@ -1,3 +1,12 @@
1config DEBUG_PAGEALLOC
2 bool "Debug page memory allocations"
3 depends on DEBUG_KERNEL && ARCH_SUPPORTS_DEBUG_PAGEALLOC
4 depends on !HIBERNATION || !PPC && !SPARC
5 ---help---
6 Unmap pages from the kernel linear mapping after free_pages().
7 This results in a large slowdown, but helps to find certain types
8 of memory corruptions.
9
1config WANT_PAGE_DEBUG_FLAGS 10config WANT_PAGE_DEBUG_FLAGS
2 bool 11 bool
3 12