Hello Johannes, On Sun, Sep 22, 2013 at 7:58 PM, Johannes Weiner <han...@cmpxchg.org> wrote: > Hello Felipe, > > On Sun, Sep 22, 2013 at 03:17:46PM -0300, Felipe Pena wrote: >> The FAULT_FLAG_WRITE flag has been set based on uninitialized variable > > Oops, you are right. > >> Signed-off-by: Felipe Pena <felipe...@gmail.com> >> --- >> arch/parisc/mm/fault.c | 5 +++-- >> 1 file changed, 3 insertions(+), 2 deletions(-) >> >> diff --git a/arch/parisc/mm/fault.c b/arch/parisc/mm/fault.c >> index d10d27a..6b38026 100644 >> --- a/arch/parisc/mm/fault.c >> +++ b/arch/parisc/mm/fault.c >> @@ -182,8 +182,6 @@ void do_page_fault(struct pt_regs *regs, unsigned long >> code, >> >> if (user_mode(regs)) >> flags |= FAULT_FLAG_USER; >> - if (acc_type & VM_WRITE) >> - flags |= FAULT_FLAG_WRITE; >> retry: >> down_read(&mm->mmap_sem); >> vma = find_vma_prev(mm, address, &prev_vma); >> @@ -201,6 +199,9 @@ good_area: >> if ((vma->vm_flags & acc_type) != acc_type) >> goto bad_area; >> >> + if (acc_type & VM_WRITE) >> + flags |= FAULT_FLAG_WRITE; > > Can acc_type actually change between between the first round and a > retry? Otherwise, it might make sense to pull this up and place it > next to the flag initialization instead of pulling one flag down.
>From what I've analyzed, this make sense. I'll make the suggested changes and send another patch. Thanks. -- Regards, Felipe Pena -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
