diff options
Diffstat (limited to 'arch/arm/mm/fault.c')
| -rw-r--r-- | arch/arm/mm/fault.c | 20 |
1 files changed, 8 insertions, 12 deletions
diff --git a/arch/arm/mm/fault.c b/arch/arm/mm/fault.c index 4a884baf3b9..5e658a87449 100644 --- a/arch/arm/mm/fault.c +++ b/arch/arm/mm/fault.c @@ -8,7 +8,6 @@ * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ -#include <linux/config.h> #include <linux/module.h> #include <linux/signal.h> #include <linux/ptrace.h> @@ -132,10 +131,11 @@ __do_user_fault(struct task_struct *tsk, unsigned long addr, force_sig_info(sig, &si, tsk); } -void -do_bad_area(struct task_struct *tsk, struct mm_struct *mm, unsigned long addr, - unsigned int fsr, struct pt_regs *regs) +void do_bad_area(unsigned long addr, unsigned int fsr, struct pt_regs *regs) { + struct task_struct *tsk = current; + struct mm_struct *mm = tsk->active_mm; + /* * If we are in kernel mode at this point, we * have no context to handle this fault with. @@ -171,7 +171,7 @@ good_area: if (fsr & (1 << 11)) /* write? */ mask = VM_WRITE; else - mask = VM_READ|VM_EXEC; + mask = VM_READ|VM_EXEC|VM_WRITE; fault = VM_FAULT_BADACCESS; if (!(vma->vm_flags & mask)) @@ -198,7 +198,7 @@ survive: return fault; } - if (tsk->pid != 1) + if (!is_init(tsk)) goto out; /* @@ -320,7 +320,6 @@ static int do_translation_fault(unsigned long addr, unsigned int fsr, struct pt_regs *regs) { - struct task_struct *tsk; unsigned int index; pgd_t *pgd, *pgd_k; pmd_t *pmd, *pmd_k; @@ -352,9 +351,7 @@ do_translation_fault(unsigned long addr, unsigned int fsr, return 0; bad_area: - tsk = current; - - do_bad_area(tsk, tsk->active_mm, addr, fsr, regs); + do_bad_area(addr, fsr, regs); return 0; } @@ -365,8 +362,7 @@ bad_area: static int do_sect_fault(unsigned long addr, unsigned int fsr, struct pt_regs *regs) { - struct task_struct *tsk = current; - do_bad_area(tsk, tsk->active_mm, addr, fsr, regs); + do_bad_area(addr, fsr, regs); return 0; } |