From nobody Thu Oct 2 03:22:21 2025 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id CF29B30E0FB; Tue, 23 Sep 2025 21:52:09 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1758664329; cv=none; b=jNt3V2eXZPOn3OKZNXIMg36nywFFgH8EJhQVM3edkI2RdZYbMLz3cwb7rwsUUe1WKoMldSVkcI5QZw1x9xttNZtGGKMXk7+/Za0Xs12Wz58RHo4/0FaU9U0/PoOWIJPSlLzTN5HPeOZB2RW/ufGw2VXHQc0QUnY9dkVkp5q0PZQ= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1758664329; c=relaxed/simple; bh=0OT+Cifnt0VO7z3Jrp77kFKvZcc+x/w351c++TwCC8k=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=foSp9j2usGzVS/aEsZfJ4uFWmLa66k/mDcDD20Zc9U8V/GokjzXO1fI2pI19albquRJITZan9jmqOyqnDRVjJh3S6jSLqt5HwJTX+3HMPE6k91j//HXj1LVHqL0RxE6lN/kjRRuxqWbehqiUJ+j3bBAd5GFm3VjAFqsE15t7wXA= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=lFQrqZvy; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="lFQrqZvy" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2FC33C4CEF5; Tue, 23 Sep 2025 21:52:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1758664329; bh=0OT+Cifnt0VO7z3Jrp77kFKvZcc+x/w351c++TwCC8k=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=lFQrqZvyVzpwGobW1Sq6klf1KfypkcKGBdHHJ8VMP9SnEbZViyQP4J7B5JuLsvUaC yBATX7bUKRqJ5wRjrnH1jm5X8vV16rqXhk8kCHQ9BRGQVsNsqK+5CufVCl3dFjUYts Fv/qTGYF7wy0FkOlJMSpnVXjchYpYWvyBQ189bvTa0go0zCsyZE+X+ax5RUjLOWRI7 zw+m+G1qf/QMP0Ge7KXiikMSO9ROZIYu71LzbJzZ+HRSUMuwqZ584aQoTV8pQoBfPI BXVvjV608ylTuVn2HZm9R2k+i2bptD5vaeA8B2vsVY5cb2l7k7nPUASXMEE0rDBDHE jQuYWJgg8TchA== From: Jiri Olsa To: Steven Rostedt , Florent Revest , Mark Rutland Cc: bpf@vger.kernel.org, linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Alexei Starovoitov , Daniel Borkmann , Andrii Nakryiko , Menglong Dong Subject: [PATCH 1/9] ftrace: Make alloc_and_copy_ftrace_hash direct friendly Date: Tue, 23 Sep 2025 23:51:39 +0200 Message-ID: <20250923215147.1571952-2-jolsa@kernel.org> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20250923215147.1571952-1-jolsa@kernel.org> References: <20250923215147.1571952-1-jolsa@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Make alloc_and_copy_ftrace_hash to copy also direct address for each hash entry. Signed-off-by: Jiri Olsa --- kernel/trace/ftrace.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c index a69067367c29..a45556257963 100644 --- a/kernel/trace/ftrace.c +++ b/kernel/trace/ftrace.c @@ -1186,7 +1186,7 @@ static void __add_hash_entry(struct ftrace_hash *hash, } =20 static struct ftrace_func_entry * -add_hash_entry(struct ftrace_hash *hash, unsigned long ip) +add_hash_entry_direct(struct ftrace_hash *hash, unsigned long ip, unsigned= long direct) { struct ftrace_func_entry *entry; =20 @@ -1195,11 +1195,18 @@ add_hash_entry(struct ftrace_hash *hash, unsigned l= ong ip) return NULL; =20 entry->ip =3D ip; + entry->direct =3D direct; __add_hash_entry(hash, entry); =20 return entry; } =20 +static struct ftrace_func_entry * +add_hash_entry(struct ftrace_hash *hash, unsigned long ip) +{ + return add_hash_entry_direct(hash, ip, 0); +} + static void free_hash_entry(struct ftrace_hash *hash, struct ftrace_func_entry *entry) @@ -1372,7 +1379,7 @@ alloc_and_copy_ftrace_hash(int size_bits, struct ftra= ce_hash *hash) size =3D 1 << hash->size_bits; for (i =3D 0; i < size; i++) { hlist_for_each_entry(entry, &hash->buckets[i], hlist) { - if (add_hash_entry(new_hash, entry->ip) =3D=3D NULL) + if (add_hash_entry_direct(new_hash, entry->ip, entry->direct) =3D=3D NU= LL) goto free_hash; } } --=20 2.51.0