linux-kernel - [PATCH v3 03/11] [DO NOT MERGE] ref_tracker: remove filter_irq

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Date:   Tue, 22 Feb 2022 00:25:34 +0100
From:   Andrzej Hajda <andrzej.hajda@...el.com>
To:     linux-kernel@...r.kernel.org, intel-gfx@...ts.freedesktop.org,
        dri-devel@...ts.freedesktop.org, netdev <netdev@...r.kernel.org>
Cc:     Eric Dumazet <edumazet@...gle.com>,
        Jani Nikula <jani.nikula@...ux.intel.com>,
        Daniel Vetter <daniel@...ll.ch>,
        Lucas De Marchi <lucas.demarchi@...el.com>,
        Andrzej Hajda <andrzej.hajda@...el.com>,
        Chris Wilson <chris.p.wilson@...el.com>,
        Dmitry Vyukov <dvyukov@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Marco Elver <elver@...gle.com>,
        Alexander Potapenko <glider@...gle.com>,
        "David S . Miller" <davem@...emloft.net>
Subject: [PATCH v3 03/11] [DO NOT MERGE] ref_tracker: remove filter_irq_stacks() call

From: Eric Dumazet <edumazet@...gle.com>

After commit e94006608949 ("lib/stackdepot: always do filter_irq_stacks()
in stack_depot_save()") it became unnecessary to filter the stack
before calling stack_depot_save().

Signed-off-by: Eric Dumazet <edumazet@...gle.com>
Cc: Marco Elver <elver@...gle.com>
Cc: Alexander Potapenko <glider@...gle.com>
Cc: Dmitry Vyukov <dvyukov@...gle.com>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Andrzej Hajda <andrzej.hajda@...el.com>
---
 lib/ref_tracker.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/lib/ref_tracker.c b/lib/ref_tracker.c
index 9c0c2e09df666..dc7b14aa3431e 100644
--- a/lib/ref_tracker.c
+++ b/lib/ref_tracker.c
@@ -89,7 +89,6 @@ int ref_tracker_alloc(struct ref_tracker_dir *dir,
 		return -ENOMEM;
 	}
 	nr_entries = stack_trace_save(entries, ARRAY_SIZE(entries), 1);
-	nr_entries = filter_irq_stacks(entries, nr_entries);
 	tracker->alloc_stack_handle = stack_depot_save(entries, nr_entries, gfp);
 
 	spin_lock_irqsave(&dir->lock, flags);
@@ -120,7 +119,6 @@ int ref_tracker_free(struct ref_tracker_dir *dir,
 		return -EEXIST;
 	}
 	nr_entries = stack_trace_save(entries, ARRAY_SIZE(entries), 1);
-	nr_entries = filter_irq_stacks(entries, nr_entries);
 	stack_handle = stack_depot_save(entries, nr_entries, GFP_ATOMIC);
 
 	spin_lock_irqsave(&dir->lock, flags);
-- 
2.25.1