diff options
| author | Takashi Iwai <tiwai@suse.de> | 2009-11-01 11:11:07 +0100 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2009-11-01 11:11:07 +0100 |
| commit | e87a3dd33eab30b4db539500064a9584867e4f2c (patch) | |
| tree | 2f7ad16e46ae30518ff63bb5391b63f7f7cc74dd /arch/arm/kernel/traps.c | |
| parent | b14f5de731ae657d498d18d713c6431bfbeefb4b (diff) | |
| parent | 3d00941371a765779c4e3509214c7e5793cce1fe (diff) | |
| download | blackbird-op-linux-e87a3dd33eab30b4db539500064a9584867e4f2c.tar.gz blackbird-op-linux-e87a3dd33eab30b4db539500064a9584867e4f2c.zip | |
Merge branch 'fix/misc' into topic/misc
Diffstat (limited to 'arch/arm/kernel/traps.c')
| -rw-r--r-- | arch/arm/kernel/traps.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c index 57eb0f6f6005..467b69ed1021 100644 --- a/arch/arm/kernel/traps.c +++ b/arch/arm/kernel/traps.c @@ -418,12 +418,14 @@ static int bad_syscall(int n, struct pt_regs *regs) static inline void do_cache_op(unsigned long start, unsigned long end, int flags) { + struct mm_struct *mm = current->active_mm; struct vm_area_struct *vma; if (end < start || flags) return; - vma = find_vma(current->active_mm, start); + down_read(&mm->mmap_sem); + vma = find_vma(mm, start); if (vma && vma->vm_start < end) { if (start < vma->vm_start) start = vma->vm_start; @@ -432,6 +434,7 @@ do_cache_op(unsigned long start, unsigned long end, int flags) flush_cache_user_range(vma, start, end); } + up_read(&mm->mmap_sem); } /* |
