The patch below does not apply to the 6.1-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to stable@vger.kernel.org.

To reproduce the conflict and resubmit, you may use the following commands:

git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.1.y git checkout FETCH_HEAD git cherry-pick -x b372e96bd0a32729d55d27f613c8bc80708a82e1 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to 'stable@vger.kernel.org' --in-reply-to '2024041442-grumble-saggy-01f0@gregkh' --subject-prefix 'PATCH 6.1.y' HEAD^..

Possible dependencies:

thanks,

greg k-h

------------------ original commit in Linus's tree ------------------

From b372e96bd0a32729d55d27f613c8bc80708a82e1 Mon Sep 17 00:00:00 2001 From: NeilBrown neilb@suse.de Date: Mon, 25 Mar 2024 09:21:20 +1100 Subject: [PATCH] ceph: redirty page before returning AOP_WRITEPAGE_ACTIVATE

The page has been marked clean before writepage is called. If we don't redirty it before postponing the write, it might never get written.

Cc: stable@vger.kernel.org Fixes: 503d4fa6ee28 ("ceph: remove reliance on bdi congestion") Signed-off-by: NeilBrown neilb@suse.de Reviewed-by: Jeff Layton jlayton@kernel.org Reviewed-by: Xiubo Li xiubli@redhat.org Signed-off-by: Ilya Dryomov idryomov@gmail.com

diff --git a/fs/ceph/addr.c b/fs/ceph/addr.c index 1340d77124ae..ee9caf7916fb 100644 --- a/fs/ceph/addr.c +++ b/fs/ceph/addr.c @@ -795,8 +795,10 @@ static int ceph_writepage(struct page *page, struct writeback_control *wbc) ihold(inode);

if (wbc->sync_mode == WB_SYNC_NONE && - ceph_inode_to_fs_client(inode)->write_congested) + ceph_inode_to_fs_client(inode)->write_congested) { + redirty_page_for_writepage(wbc, page); return AOP_WRITEPAGE_ACTIVATE; + }

wait_on_page_fscache(page);