On Thu, Dec 12, 2024 at 01:54:47PM +0000, Usama Arif wrote:
> Other page flags in the 2nd page, like PG_hwpoison and
> PG_anon_exclusive can get modified concurrently. Hence,
> partially_mapped flags need to be changed atomically.
Can you please include a description of possible consequences if this
happens? I realize this was spotted through review, but it's still
important to break down how this might impact users.
> Fixes: 8422acdc97ed ("mm: introduce a pageflag for partially mapped folios")
This is in an alreaady released kernel. Do we need this:
Cc: stable@xxxxxxxxxxxxxxx
> Reported-by: David Hildenbrand <david@xxxxxxxxxx>
Link: https://lore.kernel.org/all/e53b04ad-1827-43a2-a1ab-864c7efecf6e@xxxxxxxxxx/
> Signed-off-by: Usama Arif <usamaarif642@xxxxxxxxx>
Acked-by: Johannes Weiner <hannes@xxxxxxxxxxx>
