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>
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Родитель
833bb3046b
Коммит
ee3b4290ae
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@ -27,16 +27,6 @@ config DEBUG_STACK_USAGE
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This option will slow down process creation somewhat.
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This option will slow down process creation somewhat.
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config DEBUG_PAGEALLOC
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bool "Debug page memory allocations"
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depends on DEBUG_KERNEL && !HIBERNATION
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depends on ARCH_SUPPORTS_DEBUG_PAGEALLOC
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help
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Unmap pages from the kernel linear mapping after free_pages().
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This results in a large slowdown, but helps to find certain types
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of memory corruptions.
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config HCALL_STATS
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config HCALL_STATS
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bool "Hypervisor call instrumentation"
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bool "Hypervisor call instrumentation"
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depends on PPC_PSERIES && DEBUG_FS
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depends on PPC_PSERIES && DEBUG_FS
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@ -6,13 +6,4 @@ config TRACE_IRQFLAGS_SUPPORT
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source "lib/Kconfig.debug"
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source "lib/Kconfig.debug"
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config DEBUG_PAGEALLOC
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bool "Debug page memory allocations"
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depends on DEBUG_KERNEL
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depends on ARCH_SUPPORTS_DEBUG_PAGEALLOC
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help
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Unmap pages from the kernel linear mapping after free_pages().
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This results in a slowdown, but helps to find certain types of
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memory corruptions.
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endmenu
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endmenu
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@ -22,15 +22,6 @@ config DEBUG_DCFLUSH
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config STACK_DEBUG
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config STACK_DEBUG
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bool "Stack Overflow Detection Support"
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bool "Stack Overflow Detection Support"
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config DEBUG_PAGEALLOC
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bool "Debug page memory allocations"
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depends on DEBUG_KERNEL && !HIBERNATION
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depends on ARCH_SUPPORTS_DEBUG_PAGEALLOC
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help
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Unmap pages from the kernel linear mapping after free_pages().
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This results in a large slowdown, but helps to find certain types
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of memory corruptions.
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config MCOUNT
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config MCOUNT
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bool
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bool
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depends on SPARC64
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depends on SPARC64
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@ -72,15 +72,6 @@ config DEBUG_STACK_USAGE
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This option will slow down process creation somewhat.
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This option will slow down process creation somewhat.
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config DEBUG_PAGEALLOC
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bool "Debug page memory allocations"
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depends on DEBUG_KERNEL
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depends on ARCH_SUPPORTS_DEBUG_PAGEALLOC
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---help---
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Unmap pages from the kernel linear mapping after free_pages().
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This results in a large slowdown, but helps to find certain types
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of memory corruptions.
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config DEBUG_PER_CPU_MAPS
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config DEBUG_PER_CPU_MAPS
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bool "Debug access to per_cpu maps"
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bool "Debug access to per_cpu maps"
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depends on DEBUG_KERNEL
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depends on DEBUG_KERNEL
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@ -95,6 +95,9 @@ struct page {
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void *virtual; /* Kernel virtual address (NULL if
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void *virtual; /* Kernel virtual address (NULL if
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not kmapped, ie. highmem) */
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not kmapped, ie. highmem) */
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#endif /* WANT_PAGE_VIRTUAL */
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#endif /* WANT_PAGE_VIRTUAL */
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#ifdef CONFIG_WANT_PAGE_DEBUG_FLAGS
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unsigned long debug_flags; /* Use atomic bitops on this */
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#endif
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};
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};
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/*
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/*
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@ -175,9 +178,6 @@ struct vm_area_struct {
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#ifdef CONFIG_NUMA
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#ifdef CONFIG_NUMA
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struct mempolicy *vm_policy; /* NUMA policy for the VMA */
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struct mempolicy *vm_policy; /* NUMA policy for the VMA */
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#endif
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#endif
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#ifdef CONFIG_WANT_PAGE_DEBUG_FLAGS
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unsigned long debug_flags; /* Use atomic bitops on this */
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#endif
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};
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};
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struct core_thread {
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struct core_thread {
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@ -1,3 +1,12 @@
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config DEBUG_PAGEALLOC
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bool "Debug page memory allocations"
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depends on DEBUG_KERNEL && ARCH_SUPPORTS_DEBUG_PAGEALLOC
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depends on !HIBERNATION || !PPC && !SPARC
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---help---
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Unmap pages from the kernel linear mapping after free_pages().
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This results in a large slowdown, but helps to find certain types
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of memory corruptions.
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config WANT_PAGE_DEBUG_FLAGS
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config WANT_PAGE_DEBUG_FLAGS
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bool
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bool
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