Messages in this thread Patch in this message | | | Date | Mon, 15 Jun 2009 10:45:27 +0800 | From | Wu Fengguang <> | Subject | [PATCH 07/22] HWPOISON: define VM_FAULT_HWPOISON to 0 when feature is disabled |
| |
From: Wu Fengguang <fengguang.wu@intel.com>
So as to eliminate one #ifdef in the c source.
Proposed by Nick Piggin.
Acked-by: Nick Piggin <npiggin@suse.de> Signed-off-by: Wu Fengguang <fengguang.wu@intel.com> --- arch/x86/mm/fault.c | 3 +-- include/linux/mm.h | 7 ++++++- 2 files changed, 7 insertions(+), 3 deletions(-)
--- sound-2.6.orig/arch/x86/mm/fault.c +++ sound-2.6/arch/x86/mm/fault.c @@ -820,14 +820,13 @@ do_sigbus(struct pt_regs *regs, unsigned tsk->thread.error_code = error_code; tsk->thread.trap_no = 14; -#ifdef CONFIG_MEMORY_FAILURE if (fault & VM_FAULT_HWPOISON) { printk(KERN_ERR "MCE: Killing %s:%d due to hardware memory corruption fault at %lx\n", tsk->comm, tsk->pid, address); code = BUS_MCEERR_AR; } -#endif + force_sig_info_fault(SIGBUS, code, address, tsk); } --- sound-2.6.orig/include/linux/mm.h +++ sound-2.6/include/linux/mm.h @@ -700,11 +700,16 @@ static inline int page_mapped(struct pag #define VM_FAULT_SIGBUS 0x0002 #define VM_FAULT_MAJOR 0x0004 #define VM_FAULT_WRITE 0x0008 /* Special case for get_user_pages */ -#define VM_FAULT_HWPOISON 0x0010 /* Hit poisoned page */ #define VM_FAULT_NOPAGE 0x0100 /* ->fault installed the pte, not return page */ #define VM_FAULT_LOCKED 0x0200 /* ->fault locked the returned page */ +#ifdef CONFIG_MEMORY_FAILURE +#define VM_FAULT_HWPOISON 0x0010 /* Hit poisoned page */ +#else +#define VM_FAULT_HWPOISON 0 +#endif + #define VM_FAULT_ERROR (VM_FAULT_OOM | VM_FAULT_SIGBUS | VM_FAULT_HWPOISON) /* --
| |