[merged mm-hotfixes-stable] mm-shmem-remove-unnecessary-warning-in-shmem_writepage.patch removed from -mm tree

[merged mm-hotfixes-stable] mm-shmem-remove-unnecessary-warning-in-shmem_writepage.patch removed from -mm tree

[Andrew Morton]

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The quilt patch titled
     Subject: mm: shmem: remove unnecessary warning in shmem_writepage()
has been removed from the -mm tree.  Its filename was
     mm-shmem-remove-unnecessary-warning-in-shmem_writepage.patch

This patch was dropped because it was merged into the mm-hotfixes-stable branch
of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

------------------------------------------------------
From: Ricardo Cañuelo Navarro <rcn@igalia.com>
Subject: mm: shmem: remove unnecessary warning in shmem_writepage()
Date: Wed, 26 Feb 2025 13:26:27 +0100

Although the scenario where shmem_writepage() is called with info->flags &
VM_LOCKED is unlikely to happen, it's still possible, as evidenced by
syzbot [1].  However, the warning in this case isn't necessary because the
situation is already handled correctly [2].

[2] https://lore.kernel.org/lkml/8afe1f7f-31a2-4fc0-1fbd-f9ba8a116fe3@google.com/

Link: https://lkml.kernel.org/r/20250226-20250221-warning-in-shmem_writepage-v1-1-5ad19420e17e@igalia.com
Fixes: 9a976f0c847b ("shmem: skip page split if we're not reclaiming")
Signed-off-by: Ricardo Cañuelo Navarro <rcn@igalia.com>
Reported-by: Pengfei Xu <pengfei.xu@intel.com>
Closes: https://lore.kernel.org/lkml/ZZ9PShXjKJkVelNm@xpf.sh.intel.com/ [1]
Suggested-by: Hugh Dickins <hughd@google.com>
Reviewed-by: Baolin Wang <baolin.wang@linux.alibaba.com>
Cc: Florent Revest <revest@chromium.org>
Cc: Christian Brauner <brauner@kernel.org>
Cc: David Hildenbrand <david@redhat.com>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: Florent Revest <revest@chromium.org>
Cc: Luis Chamberalin <mcgrof@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 mm/shmem.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/mm/shmem.c~mm-shmem-remove-unnecessary-warning-in-shmem_writepage
+++ a/mm/shmem.c
@@ -1548,7 +1548,7 @@ static int shmem_writepage(struct page *
 	if (WARN_ON_ONCE(!wbc->for_reclaim))
 		goto redirty;
 
-	if (WARN_ON_ONCE((info->flags & VM_LOCKED) || sbinfo->noswap))
+	if ((info->flags & VM_LOCKED) || sbinfo->noswap)
 		goto redirty;
 
 	if (!total_swap_pages)
_

Patches currently in -mm which might be from rcn@igalia.com are