The patch titled
Subject: shmem-open-code-the-page-cache-lookup-in-shmem_get_folio_gfp-fix
has been added to the -mm mm-unstable branch. Its filename is
shmem-open-code-the-page-cache-lookup-in-shmem_get_folio_gfp-fix.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/shmem-open-code-the-page-cache-lookup-in-shmem_get_folio_gfp-fix.patch
This patch will later appear in the mm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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------------------------------------------------------
From: Hugh Dickins <hughd@xxxxxxxxxx>
Subject: shmem-open-code-the-page-cache-lookup-in-shmem_get_folio_gfp-fix
Date: Sun, 19 Mar 2023 22:23:36 -0700 (PDT)
Adjust the new comment line: shmem folio may have been swapped out.
Link: https://lkml.kernel.org/r/af178ebb-1076-a38c-1dc1-2a37ccce4a3@xxxxxxxxxx
Signed-off-by: Hugh Dickins <hughd@xxxxxxxxxx>
Cc: Andreas Gruenbacher <agruenba@xxxxxxxxxx>
Cc: Christoph Hellwig <hch@xxxxxx>
Cc: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
Cc: Ryusuke Konishi <konishi.ryusuke@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
--- a/mm/shmem.c~shmem-open-code-the-page-cache-lookup-in-shmem_get_folio_gfp-fix
+++ a/mm/shmem.c
@@ -1880,7 +1880,7 @@ repeat:
if (folio) {
folio_lock(folio);
- /* Has the page been truncated? */
+ /* Has the folio been truncated or swapped out? */
if (unlikely(folio->mapping != mapping)) {
folio_unlock(folio);
folio_put(folio);
_
Patches currently in -mm which might be from hughd@xxxxxxxxxx are
shmem-open-code-the-page-cache-lookup-in-shmem_get_folio_gfp-fix.patch
