From nobody Sun Feb 8 10:07:19 2026 Received: from galois.linutronix.de (Galois.linutronix.de [193.142.43.55]) (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 BA8241D7E33 for ; Sat, 26 Oct 2024 22:43:16 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=193.142.43.55 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729982598; cv=none; b=mtyh/fI0vQ8o3RvZkMfKcn23QZGoxR75EOgd4YoJnaDTVuhImKlnDMJIkGO2yS37idPqgmgiX1XR0WZ3zm3WTHqGkaYTmI6I6zGQp5JSy1n5FpfJ+VqkmEUKSTKeA6mLmr7rzyw2SmjgIuGrwqf+q41U4S837QJm+fd5Y84Fr8I= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729982598; c=relaxed/simple; bh=wxTiCPgczYeasflXTB3Gnf/RVwmWOrJrFbwDdZDzhX4=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=lWXoM5ysbFQbR0X69nSW6SuTaFrmxEh/xjsJ4EO+ZJNpaQEaF8Z5ht5mo4VWcrEHwmoh9z4dRxSyb58Evr1foB7imnja2zakqgmVjoD5X3yNb+jCanYpTNg4XVzEPLC1M7Aw1eRokj8u5GO363NmkLbhDkPiHDYA7jysyiLAT3E= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linutronix.de; spf=pass smtp.mailfrom=linutronix.de; dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b=dN8Yc4mF; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b=TtXaU3ku; arc=none smtp.client-ip=193.142.43.55 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linutronix.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linutronix.de Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="dN8Yc4mF"; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="TtXaU3ku" From: Sebastian Andrzej Siewior DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1729982595; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=4mZlKRrG+DPnUxrk/55cv+455WXnVQzhH1V8fNj3nts=; b=dN8Yc4mFkpnPZKnvzje6g584r8zGyazkKarQMzLtUPEu15h6BUvjLGlVR9P28soLeCoCqn 3WzcxXnWYvVIq6NV7jRfyILExp4K1kPwSnhIn9ytth6oMWJo28QXOFFFOClCI4cv3suzEx eKQaUZ72178rjqOlDDOYbTOg3VP5+6+BhHmWrr4BTQ8dwoNSbCmbGzov5ArnLPul0gdtSv Bpwj5D3p6pdVFGlf79IvmXSzf7b8sLfxrfrRjjVBSLL6vA5GTpg6qkkdCc8OSnJfmLTowW /jIR/GoVsCihKeyuDQyabrv2M8q8Z5etCXpUefX6UssJhjkmyXJHzqOt1vE95A== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1729982595; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=4mZlKRrG+DPnUxrk/55cv+455WXnVQzhH1V8fNj3nts=; b=TtXaU3kuKjfHUvz5ealc1qZWbOSqeu0vIs5y5m+DRPtWmYHc+fRt+JfFDR8CQCymvSeTcc /sX1Ic8+xR/Uf+CA== To: linux-kernel@vger.kernel.org Cc: =?UTF-8?q?Andr=C3=A9=20Almeida?= , Darren Hart , Davidlohr Bueso , Ingo Molnar , Juri Lelli , Peter Zijlstra , Valentin Schneider , Waiman Long , Sebastian Andrzej Siewior Subject: [RFC PATCH 1/3] futex: Create helper function to initialize a hash slot. Date: Sun, 27 Oct 2024 00:34:50 +0200 Message-ID: <20241026224306.982896-2-bigeasy@linutronix.de> In-Reply-To: <20241026224306.982896-1-bigeasy@linutronix.de> References: <20241026224306.982896-1-bigeasy@linutronix.de> 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" Factor out the futex_hash_bucket initialisation into a helpr function. The helper function will be used in a follow up patch. Signed-off-by: Sebastian Andrzej Siewior --- kernel/futex/core.c | 14 +++++++++----- 1 file changed, 9 insertions(+), 5 deletions(-) diff --git a/kernel/futex/core.c b/kernel/futex/core.c index 136768ae26375..de6d7f71961eb 100644 --- a/kernel/futex/core.c +++ b/kernel/futex/core.c @@ -1146,6 +1146,13 @@ void futex_exit_release(struct task_struct *tsk) futex_cleanup_end(tsk, FUTEX_STATE_DEAD); } =20 +static void futex_hash_bucket_init(struct futex_hash_bucket *fhb) +{ + atomic_set(&fhb->waiters, 0); + plist_head_init(&fhb->chain); + spin_lock_init(&fhb->lock); +} + static int __init futex_init(void) { unsigned int futex_shift; @@ -1163,11 +1170,8 @@ static int __init futex_init(void) futex_hashsize, futex_hashsize); futex_hashsize =3D 1UL << futex_shift; =20 - for (i =3D 0; i < futex_hashsize; i++) { - atomic_set(&futex_queues[i].waiters, 0); - plist_head_init(&futex_queues[i].chain); - spin_lock_init(&futex_queues[i].lock); - } + for (i =3D 0; i < futex_hashsize; i++) + futex_hash_bucket_init(&futex_queues[i]); =20 return 0; } --=20 2.45.2