From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-wr1-f73.google.com (mail-wr1-f73.google.com [209.85.221.73]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C91CD407569 for ; Mon, 29 Jun 2026 13:12:38 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.221.73 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1782738761; cv=none; b=omXhQ4W844Jw95+bp7LiMRUbsoZkKKkoJFB34yHglX4BRSb94I0h6TXTcBF6zG3UKuLCnpj+iWMMMH7rz6W8RY/FAhFouRIryQg5gBON80aMGPtXW6j4cOe01DNE6xoGGiN6xHxEMxQn1jogY2hYsRoNN5Nsji7I3vbRvP4oE5g= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1782738761; c=relaxed/simple; bh=jCeFJd5hcegb+bkmcRTTqgKj9Zc19HKuhXraZrgs6V4=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Cc:Content-Type; b=ImGHhfp4OUW+hQUrEYEXKxwSsPWn/TSQF4XF3Ecv7kAKREJr9558WUy1meMZWQIWLbDFv3h+dam7mv/bMuMKE9mwyRdQIdTh/r5+CCUnTovCpbc93y3q3YDksjvO51l2+0swCEk89UXP9SqAz6ZD8UROapX2VEcN9QuT82nnRa4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--jackmanb.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=L4n+mZ7/; arc=none smtp.client-ip=209.85.221.73 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=flex--jackmanb.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="L4n+mZ7/" Received: by mail-wr1-f73.google.com with SMTP id ffacd0b85a97d-46f5d62dd1cso354352f8f.3 for ; Mon, 29 Jun 2026 06:12:38 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20251104; t=1782738757; x=1783343557; darn=vger.kernel.org; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:from:to:cc:subject:date:message-id:reply-to; bh=8Mr23/ZUs7aDb6BM7e9K8eAVioMtQVUpxScWSecPbA8=; b=L4n+mZ7/QTEI4+gyDa+TWNZ4SKlJjAw0V3mpav71JLCS7E8uyvhpCEpWiDzwkpg3sp YMmBgnHs5DcrkGJ5mAuojU6sCimVRdSbZLOowu/EiQ3rlkDMJLqW9o3UCUq3oijwGb6Z 55hSr9/aDzAtCcKLKvRbqPMSXkX32HmqBoCUzl9xbM1jPGMOwaA2tu3MGtyLgnFIaRfS 6f2pAoJ56gxntlPbkDJRcitUkeCvH19ZmDrY85ZrOks/3ywRoIM9/nc6vJbdNEcnNnhk oXtBb2PwSd82RnLs5ZelEZ+utlWSdzbPtWGiFfHSDCFuUsbR9R2nIgCy7Y3c6TG557m3 clkg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1782738757; x=1783343557; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=8Mr23/ZUs7aDb6BM7e9K8eAVioMtQVUpxScWSecPbA8=; b=doJbsg7XD/OLpEcUvHSLkEkTDcZigtXD2uofPbuznTth6ia+pcfxg70jfS8GNaqle0 ONfx4wRQGKRPvWHZ4j6Ha4a/OTlBzB/to5n9o1JayDheklIiGhzGxDphXkvPUtYlSd5t EyRtmQArhCIfEKqV+Ea8znyRFXLoYCW0QbKdjNxQWdBVbCah+f2G5WeOgOddFsM9ppA0 x3qcgbHzDk3c0Y4b4N9forZ5iRFLtbR9hB1EfAg2MASko9jdNMuDK4pJ9QUYlaguWkUj kWk/+oCw9w89eKh4ZdF6sIoaa/PmXaijdcaZl0//GnVSzNdb4D8NiOOHb/jPaT9evSY8 BrOw== X-Forwarded-Encrypted: i=1; AHgh+RpFIrxfiSCbinLEqef066JtDJLJDRVlnITswx3NSoTU86z75Gr+o63zoRfVbejvJwumWqHd0vLFaje7jtg=@vger.kernel.org X-Gm-Message-State: AOJu0YwfIWMEm6XQcHF7p/GaW+xXcrOUmCtG5PiKTHabQgNNt16/cYO2 gXBsrIHrXZ+XJb/82vR948Fj7oWDc8tLLiUYn2KmhgMrCBWfDb7M9dBd25Ve4oER62xHmTHD6oh ZuRAoTtcUQqIaJg== X-Received: from wrub13.prod.google.com ([2002:a5d:4d8d:0:b0:472:23aa:e797]) (user=jackmanb job=prod-delivery.src-stubby-dispatcher) by 2002:a5d:438e:0:b0:473:1ccc:15b9 with SMTP id ffacd0b85a97d-474feeb1d56mr602415f8f.1.1782738757040; Mon, 29 Jun 2026 06:12:37 -0700 (PDT) Date: Mon, 29 Jun 2026 13:12:05 +0000 In-Reply-To: <20260629-alloc-trylock-v3-0-57bef0eadbc2@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20260629-alloc-trylock-v3-0-57bef0eadbc2@google.com> X-Mailer: b4 0.15.2 Message-ID: <20260629-alloc-trylock-v3-16-57bef0eadbc2@google.com> Subject: [PATCH v3 16/16] mm: remove the __GFP_NO_OBJ_EXT flag From: Brendan Jackman To: Andrew Morton , Vlastimil Babka , Suren Baghdasaryan , Michal Hocko , Johannes Weiner , Zi Yan , Muchun Song , Oscar Salvador , David Hildenbrand , Lorenzo Stoakes , "Liam R. Howlett" , Mike Rapoport , Matthew Brost , Joshua Hahn , Rakie Kim , Byungchul Park , Ying Huang , Alistair Popple , Hao Li , Christoph Lameter , David Rientjes , Roman Gushchin , Sebastian Andrzej Siewior , Clark Williams , Steven Rostedt Cc: "Harry Yoo (Oracle)" , Gregory Price , Johannes Weiner , Alexei Starovoitov , Matthew Wilcox , Hao Ge , linux-mm@kvack.org, linux-kernel@vger.kernel.org, linux-rt-devel@lists.linux.dev, Brendan Jackman Content-Type: text/plain; charset="utf-8" All users of the flag are converted to SLAB_ALLOC_NO_RECURSE or ALLOC_NO_CODETAG (from __GFP_NO_CODETAG which reused the NO_OBJ_EXT bit). Free up the flag bit. Signed-off-by: Vlastimil Babka (SUSE) [Rebased onto __GFP_NO_CODETAG removal] Signed-off-by: Brendan Jackman --- tools/include/linux/gfp_types.h | 7 ------- 1 file changed, 7 deletions(-) diff --git a/tools/include/linux/gfp_types.h b/tools/include/linux/gfp_types.h index 6c75df30a281d..a93b8bd200b76 100644 --- a/tools/include/linux/gfp_types.h +++ b/tools/include/linux/gfp_types.h @@ -55,7 +55,6 @@ enum { #ifdef CONFIG_LOCKDEP ___GFP_NOLOCKDEP_BIT, #endif - ___GFP_NO_OBJ_EXT_BIT, ___GFP_LAST_BIT }; @@ -96,7 +95,6 @@ enum { #else #define ___GFP_NOLOCKDEP 0 #endif -#define ___GFP_NO_OBJ_EXT BIT(___GFP_NO_OBJ_EXT_BIT) /* * Physical address zone modifiers (see linux/mmzone.h - low four bits) @@ -137,17 +135,12 @@ enum { * node with no fallbacks or placement policy enforcements. * * %__GFP_ACCOUNT causes the allocation to be accounted to kmemcg. - * - * %__GFP_NO_OBJ_EXT causes slab allocation to have no object extension. - * mark_obj_codetag_empty() should be called upon freeing for objects allocated - * with this flag to indicate that their NULL tags are expected and normal. */ #define __GFP_RECLAIMABLE ((__force gfp_t)___GFP_RECLAIMABLE) #define __GFP_WRITE ((__force gfp_t)___GFP_WRITE) #define __GFP_HARDWALL ((__force gfp_t)___GFP_HARDWALL) #define __GFP_THISNODE ((__force gfp_t)___GFP_THISNODE) #define __GFP_ACCOUNT ((__force gfp_t)___GFP_ACCOUNT) -#define __GFP_NO_OBJ_EXT ((__force gfp_t)___GFP_NO_OBJ_EXT) /** * DOC: Watermark modifiers -- 2.54.0