Messages in this thread | | | Date | Wed, 3 Nov 2021 10:46:24 +0100 | From | Greg KH <> | Subject | Re: [stable 5.10 PATCH] mm: hwpoison: remove the unnecessary THP check |
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On Mon, Nov 01, 2021 at 12:48:56PM -0700, Yang Shi wrote: > commit c7cb42e94473aafe553c0f2a3d8ca904599399ed upstream. > > When handling THP hwpoison checked if the THP is in allocation or free > stage since hwpoison may mistreat it as hugetlb page. After commit > 415c64c1453a ("mm/memory-failure: split thp earlier in memory error > handling") the problem has been fixed, so this check is no longer > needed. Remove it. The side effect of the removal is hwpoison may > report unsplit THP instead of unknown error for shmem THP. It seems not > like a big deal. > > The following patch "mm: filemap: check if THP has hwpoisoned subpage > for PMD page fault" depends on this, which fixes shmem THP with > hwpoisoned subpage(s) are mapped PMD wrongly. So this patch needs to be > backported to -stable as well. > > Link: https://lkml.kernel.org/r/20211020210755.23964-2-shy828301@gmail.com > Signed-off-by: Yang Shi <shy828301@gmail.com> > Suggested-by: Naoya Horiguchi <naoya.horiguchi@nec.com> > Acked-by: Naoya Horiguchi <naoya.horiguchi@nec.com> > Cc: Hugh Dickins <hughd@google.com> > Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> > Cc: Matthew Wilcox <willy@infradead.org> > Cc: Oscar Salvador <osalvador@suse.de> > Cc: Peter Xu <peterx@redhat.com> > Cc: <stable@vger.kernel.org> > Signed-off-by: Andrew Morton <akpm@linux-foundation.org> > Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> > --- > mm-filemap-check-if-thp-has-hwpoisoned-subpage-for-pmd-page-fault.patch > depends on this one.
Both now queued up, thanks.
greg k-h
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