On Tue, Mar 05, 2024 at 11:09:17PM +0100, David Hildenbrand wrote: > On 05.03.24 23:04, Greg KH wrote: > > On Tue, Mar 05, 2024 at 11:13:13AM -0500, Zi Yan wrote: > > > From: Zi Yan <ziy@xxxxxxxxxx> > > > > > > The tail pages in a THP can have swap entry information stored in their > > > private field. When migrating to a new page, all tail pages of the new > > > page need to update ->private to avoid future data corruption. > > > > > > Signed-off-by: Zi Yan <ziy@xxxxxxxxxx> > > > --- > > > mm/migrate.c | 6 +++++- > > > 1 file changed, 5 insertions(+), 1 deletion(-) > > > > What is the git commit id of this change in Linus's tree? > > Unfortunately, we had to do stable-only versions, because the backport > of the "accidental" fix that removes the per-subpage "private" information > would be non-trivial, especially for pre-folio-converison times. > > The accidental fix is > > 07e09c483cbef2a252f75d95670755a0607288f5 None of that is obvious at all here, we need loads of documentation in the changelog text that says all of that please. thanks, greg k-h
