aboutsummaryrefslogtreecommitdiff
path: root/arch/arm/mm/fault.c
diff options
context:
space:
mode:
authorRussell King <rmk@dyn-67.arm.linux.org.uk>2009-09-12 12:02:26 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2009-09-12 12:02:26 +0100
commitddd559b13f6d2fe3ad68c4b3f5235fd3c2eae4e3 (patch)
treed827bca3fc825a0ac33efbcd493713be40fcc812 /arch/arm/mm/fault.c
parentcf7a2b4fb6a9b86779930a0a123b0df41aa9208f (diff)
parentf17a1f06d2fa93f4825be572622eb02c4894db4e (diff)
Merge branch 'devel-stable' into devel
Conflicts: MAINTAINERS arch/arm/mm/fault.c
Diffstat (limited to 'arch/arm/mm/fault.c')
-rw-r--r--arch/arm/mm/fault.c23
1 files changed, 23 insertions, 0 deletions
diff --git a/arch/arm/mm/fault.c b/arch/arm/mm/fault.c
index 5fa8dea5a37..cc8829d7e11 100644
--- a/arch/arm/mm/fault.c
+++ b/arch/arm/mm/fault.c
@@ -16,6 +16,7 @@
#include <linux/kprobes.h>
#include <linux/uaccess.h>
#include <linux/page-flags.h>
+#include <linux/sched.h>
#include <linux/highmem.h>
#include <asm/system.h>
@@ -24,6 +25,7 @@
#include "fault.h"
+#ifdef CONFIG_MMU
#ifdef CONFIG_KPROBES
static inline int notify_page_fault(struct pt_regs *regs, unsigned int fsr)
@@ -98,6 +100,10 @@ void show_pte(struct mm_struct *mm, unsigned long addr)
printk("\n");
}
+#else /* CONFIG_MMU */
+void show_pte(struct mm_struct *mm, unsigned long addr)
+{ }
+#endif /* CONFIG_MMU */
/*
* Oops. The kernel tried to access some page that wasn't present.
@@ -172,6 +178,7 @@ void do_bad_area(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
__do_kernel_fault(mm, addr, fsr, regs);
}
+#ifdef CONFIG_MMU
#define VM_FAULT_BADMAP 0x010000
#define VM_FAULT_BADACCESS 0x020000
@@ -323,6 +330,13 @@ no_context:
__do_kernel_fault(mm, addr, fsr, regs);
return 0;
}
+#else /* CONFIG_MMU */
+static int
+do_page_fault(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
+{
+ return 0;
+}
+#endif /* CONFIG_MMU */
/*
* First Level Translation Fault Handler
@@ -341,6 +355,7 @@ no_context:
* interrupt or a critical region, and should only copy the information
* from the master page table, nothing more.
*/
+#ifdef CONFIG_MMU
static int __kprobes
do_translation_fault(unsigned long addr, unsigned int fsr,
struct pt_regs *regs)
@@ -379,6 +394,14 @@ bad_area:
do_bad_area(addr, fsr, regs);
return 0;
}
+#else /* CONFIG_MMU */
+static int
+do_translation_fault(unsigned long addr, unsigned int fsr,
+ struct pt_regs *regs)
+{
+ return 0;
+}
+#endif /* CONFIG_MMU */
/*
* Some section permission faults need to be handled gracefully.