[PATCH 4.19 13/86] fuse: fix weird page warning

Greg Kroah-Hartman
2020-07-27T14:09:35Z

From: Miklos Szeredi <mszeredi@redhat.com>

commit a5005c3cda6eeb6b95645e6cc32f58dafeffc976 upstream.

When PageWaiters was added, updating this check was missed.

Reported-by: Nikolaus Rath <Nikolaus@rath.org>
Reported-by: Hugh Dickins <hughd@google.com>
Fixes: 62906027091f ("mm: add PageWaiters indicating tasks are waiting for a page bit")
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Signed-off-by: André Almeida <andrealmeid@collabora.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
fs/fuse/dev.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c
index 6d39143cfa094..01e6ea11822bf 100644
--- a/fs/fuse/dev.c
+++ b/fs/fuse/dev.c
@@ -838,7 +838,8 @@ static int fuse_check_page(struct page *page)
1 << PG_uptodate |
1 << PG_lru |
1 << PG_active |
- 1 << PG_reclaim))) {
+ 1 << PG_reclaim |
+ 1 << PG_waiters))) {
printk(KERN_WARNING "fuse: trying to steal weird page\n");
printk(KERN_WARNING " page=%p index=%li flags=%08lx, count=%i, mapcount=%i, mapping=%p\n", page, page->index, page->flags, page_count(page), page_mapcount(page), page->mapping);
return 1;
--
2.25.1