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Diffstat (limited to 'arch/sparc/mm/fault_64.c')
-rw-r--r--arch/sparc/mm/fault_64.c14
1 files changed, 9 insertions, 5 deletions
diff --git a/arch/sparc/mm/fault_64.c b/arch/sparc/mm/fault_64.c
index 2ebec263d685..69bb818fdd79 100644
--- a/arch/sparc/mm/fault_64.c
+++ b/arch/sparc/mm/fault_64.c
@@ -21,6 +21,7 @@
#include <linux/kprobes.h>
#include <linux/kdebug.h>
#include <linux/percpu.h>
+#include <linux/context_tracking.h>
#include <asm/page.h>
#include <asm/pgtable.h>
@@ -272,6 +273,7 @@ static void noinline __kprobes bogus_32bit_fault_address(struct pt_regs *regs,
asmlinkage void __kprobes do_sparc64_fault(struct pt_regs *regs)
{
+ enum ctx_state prev_state = exception_enter();
struct mm_struct *mm = current->mm;
struct vm_area_struct *vma;
unsigned int insn = 0;
@@ -282,7 +284,7 @@ asmlinkage void __kprobes do_sparc64_fault(struct pt_regs *regs)
fault_code = get_thread_fault_code();
if (notify_page_fault(regs))
- return;
+ goto exit_exception;
si_code = SEGV_MAPERR;
address = current_thread_info()->fault_address;
@@ -313,7 +315,7 @@ asmlinkage void __kprobes do_sparc64_fault(struct pt_regs *regs)
/* Valid, no problems... */
} else {
bad_kernel_pc(regs, address);
- return;
+ goto exit_exception;
}
} else
flags |= FAULT_FLAG_USER;
@@ -430,7 +432,7 @@ good_area:
fault = handle_mm_fault(mm, vma, address, flags);
if ((fault & VM_FAULT_RETRY) && fatal_signal_pending(current))
- return;
+ goto exit_exception;
if (unlikely(fault & VM_FAULT_ERROR)) {
if (fault & VM_FAULT_OOM)
@@ -482,6 +484,8 @@ good_area:
}
#endif
+exit_exception:
+ exception_exit(prev_state);
return;
/*
@@ -494,7 +498,7 @@ bad_area:
handle_kernel_fault:
do_kernel_fault(regs, si_code, fault_code, insn, address);
- return;
+ goto exit_exception;
/*
* We ran out of memory, or some other thing happened to us that made
@@ -505,7 +509,7 @@ out_of_memory:
up_read(&mm->mmap_sem);
if (!(regs->tstate & TSTATE_PRIV)) {
pagefault_out_of_memory();
- return;
+ goto exit_exception;
}
goto handle_kernel_fault;