*
* Copyright (C) 1995 - 2000 by Ralf Baechle
*/
+#include <linux/context_tracking.h>
#include <linux/signal.h>
#include <linux/sched.h>
#include <linux/interrupt.h>
* and the problem, and then passes it off to one of the appropriate
* routines.
*/
-asmlinkage void __kprobes do_page_fault(struct pt_regs *regs, unsigned long write,
- unsigned long address)
+static void __kprobes __do_page_fault(struct pt_regs *regs, unsigned long write,
+ unsigned long address)
{
struct vm_area_struct * vma = NULL;
struct task_struct *tsk = current;
* (which will retry the fault, or kill us if we got oom-killed).
*/
up_read(&mm->mmap_sem);
+ if (!user_mode(regs))
+ goto no_context;
pagefault_out_of_memory();
return;
}
#endif
}
+
+asmlinkage void __kprobes do_page_fault(struct pt_regs *regs,
+ unsigned long write, unsigned long address)
+{
+ enum ctx_state prev_state;
+
+ prev_state = exception_enter();
+ __do_page_fault(regs, write, address);
+ exception_exit(prev_state);
+}