diff mbox series

[v7,4/7] lib/ref_tracker: remove warnings in case of allocation failure

Message ID 20230224-track_gt-v7-4-11f08358c1ec@intel.com (mailing list archive)
State New, archived
Headers show
Series drm/i915: use ref_tracker library for tracking wakerefs | expand

Commit Message

Andrzej Hajda April 21, 2023, 11:35 a.m. UTC 
Library can handle allocation failures. To avoid allocation warnings
__GFP_NOWARN has been added everywhere. Moreover GFP_ATOMIC has been
replaced with GFP_NOWAIT in case of stack allocation on tracker free
call.

Signed-off-by: Andrzej Hajda <andrzej.hajda@intel.com>
Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com>
---
 lib/ref_tracker.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

Comments

Eric Dumazet April 21, 2023, 2:21 p.m. UTC | #1 
On Fri, Apr 21, 2023 at 1:35 PM Andrzej Hajda <andrzej.hajda@intel.com> wrote:
>
> Library can handle allocation failures. To avoid allocation warnings
> __GFP_NOWARN has been added everywhere. Moreover GFP_ATOMIC has been
> replaced with GFP_NOWAIT in case of stack allocation on tracker free
> call.
>
> Signed-off-by: Andrzej Hajda <andrzej.hajda@intel.com>
> Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com>
> ---

Reviewed-by: Eric Dumazet <edumazet@google.com>
Thanks.
diff mbox series

Patch

diff --git a/lib/ref_tracker.c b/lib/ref_tracker.c
index cce4614b07940f..cf5609b1ca7936 100644
--- a/lib/ref_tracker.c
+++ b/lib/ref_tracker.c
@@ -189,7 +189,7 @@  int ref_tracker_alloc(struct ref_tracker_dir *dir,
 	unsigned long entries[REF_TRACKER_STACK_ENTRIES];
 	struct ref_tracker *tracker;
 	unsigned int nr_entries;
-	gfp_t gfp_mask = gfp;
+	gfp_t gfp_mask = gfp | __GFP_NOWARN;
 	unsigned long flags;
 
 	WARN_ON_ONCE(dir->dead);
@@ -237,7 +237,8 @@  int ref_tracker_free(struct ref_tracker_dir *dir,
 		return -EEXIST;
 	}
 	nr_entries = stack_trace_save(entries, ARRAY_SIZE(entries), 1);
-	stack_handle = stack_depot_save(entries, nr_entries, GFP_ATOMIC);
+	stack_handle = stack_depot_save(entries, nr_entries,
+					GFP_NOWAIT | __GFP_NOWARN);
 
 	spin_lock_irqsave(&dir->lock, flags);
 	if (tracker->dead) {