From efdece12540dedb6822990978e8eb033c9aebb73 Mon Sep 17 00:00:00 2001 From: Christian Brauner Date: Mon, 1 Jun 2026 15:56:57 +0200 Subject: [PATCH] fs: stop rewriting kthread fs structs Now that we isolated kthreads filesystem state completely from userspace stop rewriting their state. Link: https://patch.msgid.link/20260601-work-kthread-nullfs-v4-24-77ee053060e0@kernel.org Signed-off-by: Christian Brauner (Amutable) --- fs/fs_struct.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/fs/fs_struct.c b/fs/fs_struct.c index f44e43ce6d93..2a98cfbedd32 100644 --- a/fs/fs_struct.c +++ b/fs/fs_struct.c @@ -61,6 +61,10 @@ void chroot_fs_refs(const struct path *old_root, const struct path *new_root) read_lock(&tasklist_lock); for_each_process_thread(g, p) { + /* leave kthreads alone */ + if (p->flags & PF_KTHREAD) + continue; + task_lock(p); fs = p->real_fs; if (fs) {