Patch "mm: Fix filemap_invalidate_inode() to use invalidate_inode_pages2_range()" has been added to the 6.10-stable tree

[<gregkh@linuxfoundation.org>]

This is a note to let you know that I've just added the patch titled

    mm: Fix filemap_invalidate_inode() to use invalidate_inode_pages2_range()

to the 6.10-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     mm-fix-filemap_invalidate_inode-to-use-invalidate_inode_pages2_range.patch
and it can be found in the queue-6.10 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


From c26096ee0278c5e765009c5eee427bbafe6dc090 Mon Sep 17 00:00:00 2001
From: David Howells <dhowells@redhat.com>
Date: Wed, 28 Aug 2024 22:02:45 +0100
Subject: mm: Fix filemap_invalidate_inode() to use invalidate_inode_pages2_range()

From: David Howells <dhowells@redhat.com>

commit c26096ee0278c5e765009c5eee427bbafe6dc090 upstream.

Fix filemap_invalidate_inode() to use invalidate_inode_pages2_range()
rather than truncate_inode_pages_range().  The latter clears the
invalidated bit of a partial pages rather than discarding it entirely.
This causes copy_file_range() to fail on cifs because the partial pages at
either end of the destination range aren't evicted and reread, but rather
just partly cleared.

This causes generic/075 and generic/112 xfstests to fail.

Fixes: 74e797d79cf1 ("mm: Provide a means of invalidation without using launder_folio")
Signed-off-by: David Howells <dhowells@redhat.com>
Link: https://lore.kernel.org/r/20240828210249.1078637-5-dhowells@redhat.com
cc: Matthew Wilcox <willy@infradead.org>
cc: Miklos Szeredi <miklos@szeredi.hu>
cc: Trond Myklebust <trond.myklebust@hammerspace.com>
cc: Christoph Hellwig <hch@lst.de>
cc: Andrew Morton <akpm@linux-foundation.org>
cc: Alexander Viro <viro@zeniv.linux.org.uk>
cc: Christian Brauner <brauner@kernel.org>
cc: Jeff Layton <jlayton@kernel.org>
cc: linux-mm@kvack.org
cc: linux-fsdevel@vger.kernel.org
cc: netfs@lists.linux.dev
cc: v9fs@lists.linux.dev
cc: linux-afs@lists.infradead.org
cc: ceph-devel@vger.kernel.org
cc: linux-cifs@vger.kernel.org
cc: linux-nfs@vger.kernel.org
cc: devel@lists.orangefs.org
Signed-off-by: Christian Brauner <brauner@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 mm/filemap.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -4221,7 +4221,7 @@ int filemap_invalidate_inode(struct inod
 	}
 
 	/* Wait for writeback to complete on all folios and discard. */
-	truncate_inode_pages_range(mapping, start, end);
+	invalidate_inode_pages2_range(mapping, start / PAGE_SIZE, end / PAGE_SIZE);
 
 unlock:
 	filemap_invalidate_unlock(mapping);


Patches currently in stable-queue which might be from dhowells@redhat.com are

queue-6.10/mm-fix-filemap_invalidate_inode-to-use-invalidate_inode_pages2_range.patch