Hi Fengguang,
I replace the patch with another one so it should be not a problem any more.
Thanks for the notice!
On Fri, Sep 7, 2012 at 8:26 PM, Fengguang Wu <fengguang.wu@xxxxxxxxx> wrote:
> Hi Minchan,
>
> FYI, there are new compile warnings show up in
>
> tree: git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git akpm
> head: d28e1f373a79e532eecbe6b17beeb4d2052c1a52
> commit: 29cfd54de3204fe1b8b6a4ea744a21b43f3e00fa [146/246] mm: support MIGRATE_DISCARD
> config: i386-randconfig-k920 (attached as .config)
>
> All error/warnings:
>
> mm/migrate.c: In function 'migrate_pages':
> mm/migrate.c:827:5: warning: 'ttu_flags' may be used uninitialized in this function [-Wmaybe-uninitialized]
> mm/migrate.c:701:17: note: 'ttu_flags' was declared here
>
> vim +827 mm/migrate.c
> 817
> 818 file = page_is_file_cache(page);
> 819 ttu_flags = TTU_IGNORE_ACCESS;
> 820 retry:
> 821 if (!(mode & MIGRATE_DISCARD) || !file || PageDirty(page))
> 822 ttu_flags |= (TTU_MIGRATION | TTU_IGNORE_MLOCK);
> 823 else
> 824 discard_mode = true;
> 825
> 826 /* Establish migration ptes or remove ptes */
> > 827 rc = try_to_unmap(page, ttu_flags);
> 828
> 829 skip_unmap:
> 830 if (rc == SWAP_SUCCESS) {
> 831 if (!discard_mode) {
> 832 rc = move_to_new_page(newpage, page,
> 833 remap_swapcache, mode);
> 834 } else {
> 835 rc = discard_page(page);
> 836 goto uncharge;
> 837 }
>
> ---
> 0-DAY kernel build testing backend Open Source Technology Centre
> Fengguang Wu <wfg@xxxxxxxxxxxxxxx> Intel Corporation
--
Kind regards,
Minchan Kim
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