From: Miklos Szeredi <mszeredi@redhat.com>
Date: Fri, 18 Jun 2021 21:16:42 +0200
Subject: fuse: ignore PG_workingset after stealing
Git-commit: b89ecd60d38ec042d63bdb376c722a16f92bcb88
Patch-mainline: v5.14-rc1
References: bsc#1188268

Fix the "fuse: trying to steal weird page" warning.

Description from Johannes Weiner:

  "Think of it as similar to PG_active. It's just another usage/heat
   indicator of file and anon pages on the reclaim LRU that, unlike
   PG_active, persists across deactivation and even reclaim (we store it in
   the page cache / swapper cache tree until the page refaults).

   So if fuse accepts pages that can legally have PG_active set,
   PG_workingset is fine too."

Reported-by: Thomas Lindroth <thomas.lindroth@gmail.com>
Fixes: 1899ad18c607 ("mm: workingset: tell cache transitions from workingset thrashing")
Cc: <stable@vger.kernel.org> # v4.20
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Acked-by: Luis Henriques <lhenriques@suse.com>
---
 fs/fuse/dev.c |    1 +
 1 file changed, 1 insertion(+)

--- a/fs/fuse/dev.c
+++ b/fs/fuse/dev.c
@@ -905,6 +905,7 @@ static int fuse_check_page(struct page *
 	       1 << PG_uptodate |
 	       1 << PG_lru |
 	       1 << PG_active |
+	       1 << PG_workingset |
 	       1 << PG_reclaim |
 	       1 << PG_waiters))) {
 		pr_warn("trying to steal weird page\n");