This is a note to let you know that I've just added the patch titled cifs: fix flushing folio regression for 6.1 backport to the 6.1-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: cifs-fix-flushing-folio-regression-for-6.1-backport.patch and it can be found in the queue-6.1 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From ba288a873fb8ac3d1bf5563366558a905620c071 Mon Sep 17 00:00:00 2001 From: Steve French <stfrench@xxxxxxxxxxxxx> Date: Fri, 12 Jan 2024 23:08:51 -0600 Subject: cifs: fix flushing folio regression for 6.1 backport filemap_get_folio works differenty in 6.1 vs. later kernels (returning NULL in 6.1 instead of an error). Add this minor correction which addresses the regression in the patch: cifs: Fix flushing, invalidation and file size with copy_file_range() Link: https://lore.kernel.org/all/a76b370f93cb928c049b94e1fde0d2da506dfcb2.camel@xxxxxxxxxx/ Reported-by: "Jitindar Singh, Suraj" <surajjs@xxxxxxxxxx> Suggested-by: David Howells <dhowells@xxxxxxxxxx> Reported-by: Salvatore Bonaccorso <carnil@xxxxxxxxxx> Signed-off-by: Steve French <stfrench@xxxxxxxxxxxxx> Tested-by: Salvatore Bonaccorso <carnil@xxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- fs/smb/client/cifsfs.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/fs/smb/client/cifsfs.c +++ b/fs/smb/client/cifsfs.c @@ -1240,7 +1240,7 @@ static int cifs_flush_folio(struct inode int rc = 0; folio = filemap_get_folio(inode->i_mapping, index); - if (IS_ERR(folio)) + if (!folio) return 0; size = folio_size(folio); Patches currently in stable-queue which might be from stfrench@xxxxxxxxxxxxx are queue-6.1/cifs-fix-flushing-folio-regression-for-6.1-backport.patch