This loses flags like GFP_NOFS and GFP_NOIO that are important to avoid
deadlocks as well as GFP_NOLOCKDEP that otherwise generates lockdep false
positives.
Fixes: 217b2119b9e2 ("mm,page_owner: implement the tracking of the stacks count")
Reported-by: Reported-by: syzbot+b7e8d799f0ab724876f9@xxxxxxxxxxxxxxxxxxxxxxxxx
Signed-off-by: Christoph Hellwig <hch@xxxxxx>
---
mm/page_owner.c | 2 --
1 file changed, 2 deletions(-)
diff --git a/mm/page_owner.c b/mm/page_owner.c
index d17d1351ec84af..d214488846fa92 100644
--- a/mm/page_owner.c
+++ b/mm/page_owner.c
@@ -168,9 +168,7 @@ static void add_stack_record_to_list(struct stack_record *stack_record,
unsigned long flags;
struct stack *stack;
- /* Filter gfp_mask the same way stackdepot does, for consistency */
gfp_mask &= ~GFP_ZONEMASK;
- gfp_mask &= (GFP_ATOMIC | GFP_KERNEL);
gfp_mask |= __GFP_NOWARN;
set_current_in_page_owner();
--
2.39.2
