From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-wr1-f74.google.com (mail-wr1-f74.google.com [209.85.221.74]) (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 B1EB441C303 for ; Mon, 29 Jun 2026 13:12:38 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.221.74 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1782738760; cv=none; b=nD1RWe21iXRk2fprMCnV4catxD9JSR1FBnVuIOkz7SUjJVBZWKFr8Oaet8fCUfaLHZOQ80E4rX9LzrxoKAxNUEJO7Ize77gRUZWm4EwRwrIYn31c1Ee/hB0CuKGYvrfpnJHbJ7TnCn07dsgZdKeYOfgL/YZoYT8Eg+N7XsVak1M= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1782738760; c=relaxed/simple; bh=jCeFJd5hcegb+bkmcRTTqgKj9Zc19HKuhXraZrgs6V4=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Cc:Content-Type; b=qhNcCOOdG+WgEYYzf3ece66GmRVAE6PqwlvPhr0i9KA9tOD0GmGh6LZom05Drmy5kxezFwol/2xkGFSIzPnScYNovC/a0QR1yqJRsEm+1B3Xa9lMs7RuOO4LYn2GFjJgg2FkWwMWTfubHP5OWTAkY0iwG0bFpyTiZ6NNjcpDUv8= 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=Znk6Fv+h; arc=none smtp.client-ip=209.85.221.74 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="Znk6Fv+h" Received: by mail-wr1-f74.google.com with SMTP id ffacd0b85a97d-473f4a48e9aso500754f8f.2 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=lists.linux.dev; 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=Znk6Fv+h6SbNMGS8ZW8PvWxJmqYcenXPWxsfGYJMJRPNji3KAvywWuRgfnccRmQ2Cb vUD6nuuKK6nzn0nT7Jr4+3wPiQ/0BrYXzRVR2vAgYusu0p/l/IUa4yubxcD1HV2kFjz8 Hj0IPL6SsLs2Cfepsa5SgfvPi271aMW/YAmzN5D/NYSxkB6jpb7J4+fA9uQec1pepKsp oD6A1IeFMEnHO+a9HogLCafyzlECQYESfCPT2q92/n8+qtQ6zDCaHvAjWpp4jzQFW6B4 XFEQLOedr5F+vZp1YRIKsDtGZdFRcMAz1ZAp9ZU6HHSNryY6lAxYf+QsarJE9l4E+4xm 38KA== 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=bSVirsMHXkzlnU+I3k6FRtUCdcFLLrFYqy6DqGcZwPNLqMcgQdYVXBqoDlJX+O/sCc 9Gs2sH/DBJ+TMVknbEm/Rwe1bgvB2IXlQq0MDVxn/P/79Goz57dmLzXaD7B7QxhUXgu5 gAYkaRqgYfJ5a7iZZ4YqyuFFSbucSX56dxD/K3WloCd6LWbLDKA0YrOPiStHMF4B5/6u dowxH5hIRmlp44vuUQIEEh6BEOTkGtfzFJ8UxRutWzehqGbPKIo1VoZLy/vPU36bMC97 3clNiFLJC9fhtsoD2CnKMTzt65lcfI9dynardHWQuvDRJJDmWyFzLW5VnxF8vZ7Q7cCA c2kg== X-Forwarded-Encrypted: i=1; AHgh+RrE1fbs/LQpNn6XR0B9G0b9/q3TLBlWdMkXeS9mGpvqvGvgiP3oBaq5bmjpb7je+pcI2iTcqtPDAIYSO6HdAQ==@lists.linux.dev X-Gm-Message-State: AOJu0YxNr4/6FFnRX+TVW3hnXZol+v0NfOp9P2U/mu5ox5KYjoZwsnER OlKsgO2yKdoJpRwHFGQpUYj1aWMveQILlZ4DPtapRNu6BDCNfOmDkSDAFKXSGH/AjfacJEJi5WT /mXF/TbPCah01wQ== 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-rt-devel@lists.linux.dev 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