The patch titled
Subject: shmem: update folio if shmem_replace_page() updates the page
has been added to the -mm mm-hotfixes-unstable branch. Its filename is
shmem-update-folio-if-shmem_replace_page-updates-the-page.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/shmem-update-folio-if-shmem_replace_page-updates-the-page.patch
This patch will later appear in the mm-hotfixes-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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------------------------------------------------------
From: "Matthew Wilcox (Oracle)" <willy@xxxxxxxxxxxxx>
Subject: shmem: update folio if shmem_replace_page() updates the page
Date: Sat, 30 Jul 2022 05:25:18 +0100
If we allocate a new page, we need to make sure that our folio matches
that new page. This will be solved by changing shmem_replace_page() to
shmem_replace_folio(), but this is the minimal fix.
Link: https://lkml.kernel.org/r/20220730042518.1264767-1-willy@xxxxxxxxxxxxx
Fixes: da08e9b79323 ("mm/shmem: convert shmem_swapin_page() to shmem_swapin_folio()")
Signed-off-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
Cc: Hugh Dickins <hughd@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/shmem.c | 1 +
1 file changed, 1 insertion(+)
--- a/mm/shmem.c~shmem-update-folio-if-shmem_replace_page-updates-the-page
+++ a/mm/shmem.c
@@ -1771,6 +1771,7 @@ static int shmem_swapin_folio(struct ino
if (shmem_should_replace_folio(folio, gfp)) {
error = shmem_replace_page(&page, gfp, info, index);
+ folio = page_folio(page);
if (error)
goto failed;
}
_
Patches currently in -mm which might be from willy@xxxxxxxxxxxxx are
shmem-update-folio-if-shmem_replace_page-updates-the-page.patch
