From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-qk1-f171.google.com (mail-qk1-f171.google.com [209.85.222.171]) (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 653263947B0 for ; Wed, 1 Jul 2026 18:52:39 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.222.171 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1782931960; cv=none; b=ax+noDr/AtYX1Aq6/4zn2NMiJDLIvBkZwQmUFtRBflAFSOpivEv8e4aHohO1REVPDFGS+G+d5NuLSmaP/qESY1Ok25qO/R/9qtp4iksvmFDR93UXgi8JGSqfENNowtXPHQom46qMsuKbAvFDpS/nlLrvlwrzQUgGMSLGdK2CX8o= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1782931960; c=relaxed/simple; bh=PvXcoxhAH61eM4Y3LvAs6l2sIhpWTthrhMLFPn2Zjmw=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=W9Ijdykw4Z4lJPgEF0MgmvsbpPmtjftNgPBgt/BVbsTLyu33U8Gx1l2FlWTCuEKwUMK1vyILgMrkr0YpYTWwvunsyiBmdTwpiReKrU53aJVv2E+o/NX/ALMgTweht1fJ55dtaFYelQGLjC40DNZq1F8McLrvRowd/QwCRpu507w= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=etsalapatis.com; spf=pass smtp.mailfrom=etsalapatis.com; dkim=pass (2048-bit key) header.d=etsalapatis-com.20251104.gappssmtp.com header.i=@etsalapatis-com.20251104.gappssmtp.com header.b=ZM5MpWq2; arc=none smtp.client-ip=209.85.222.171 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=etsalapatis.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=etsalapatis.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=etsalapatis-com.20251104.gappssmtp.com header.i=@etsalapatis-com.20251104.gappssmtp.com header.b="ZM5MpWq2" Received: by mail-qk1-f171.google.com with SMTP id af79cd13be357-9159951f05aso74577885a.0 for ; Wed, 01 Jul 2026 11:52:39 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=etsalapatis-com.20251104.gappssmtp.com; s=20251104; t=1782931958; x=1783536758; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=Pfy/wz4QLm/BQaQQJTGIeAr6B0Q16xkRnLNxb7Rw5bU=; b=ZM5MpWq2SW4+SqcQuBB9vGoSM6lMRnT3RmGj8jxVgDztiD3lOsGLTr6J7qNspOaxtg Cp07J1v4Dh0JgqBvHpMjHsTIa2dSrtsEx9K/QjoPlWo8Ta+njGpleJxu38WnyYyrSJ1c zfqXxy56Np6M2eSDArLXpgreWnqOyxP6GSyETNGqd3kT9dJJm/OGUjt4NHeIa0NgEYrS Dwsv5mHC5N/tNnjXSAVxAK+unjlPJWVMvaXniz9pFudl7RhELtA8uFJo//XKbl/rVN/H ptKz2R9dvMyXnCrONNzfZvk+zTI5xyEco/qc+DlCTgflK5R9jMQQPA7SWDCqGQ/qN9q9 Uj3A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1782931958; x=1783536758; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-gg:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=Pfy/wz4QLm/BQaQQJTGIeAr6B0Q16xkRnLNxb7Rw5bU=; b=Xn7f9zrWRcuZ5x3nw3AFTBRREVRsBTUy552XlkxuP40SqdheyIBgOW4Mv4ybLpISRp JT0PJfkMflDLTmG5t6jjtxn7Vm0aK46H7SYHBf7UdWZ55g1Hpju05Jt2JQbYOpl7xWzM wXj5CtDKY3V6NOraAjkWqLYjX9qxBQCFbgs/eTr7z9ijb30qy6ogrh3ppnDHeEKcuhGW TIGHzXlhfKWgXpIAl3MhZT31QmyTEszDJ+D283BsQSsVUMJq+mkuR/KwhsR5UZytJuKq Ygnks5+ocLJkIEq3NER4NLoYzTA6ynfDa82kkyT1lyU2jOlGU0WiQmvG3OGMPJ8Spobx TYFg== X-Gm-Message-State: AOJu0Ywm3eJXhlBBIOQisPaGMVKLOTgoLaUIsKjbvtPv4UAf/zs4RES0 asyvRJtu8IL9j0z/lnW0F6SRMe/mAgjlk6F2lU74yC5681J9CZjoric2L5vgXngkjjsVVPMBy8a Z4b4XtS8= X-Gm-Gg: AfdE7clESgw3yT1Sy0V5p0xP9i/jJYBvLfBzIQtt/7nxLUm6EMbjv+3AK5SyIpJiUv7 FQqi92Qido16VLx6jN/ojChdDdswgqdSVlC13IAjDiP06SnRlN8DpqwdQPIcGpcGl2THYt0Ye8f kYXFjb5z9hxRF1Mi/Y/UY+LacUEG+66QfeLdQPO5oKs1Qej1/WXUeqCVGykDCTIaqcwB0sitLeh B3I0oNAXekAKjKN9Px88H2vHGBNkn1kpHchpk9SpBTQ1evOlveOJPSPVArEFaai9ygdJ8cfWYTw X4DinU7h4Yn2tcZYbXeOk1M/hhJKLBDUg7FRw54MbNNyOrvGbJpe20eEqgBYmPA8PR7OWOdc7tV sFbdTyEqwzyPohe9VNkaXznh357HVMpb5xlV4zFR3vmOoxXHZG1ohk8pb3eI377WFZYKUXhd6yq Y1RpgNgT2aMA9JfpPexB3rpkOigezfk7Hk31XJpg== X-Received: by 2002:a05:620a:a912:b0:92e:7c7e:9c9a with SMTP id af79cd13be357-92e7c7eae1bmr227877385a.31.1782931958041; Wed, 01 Jul 2026 11:52:38 -0700 (PDT) Received: from krios.home.ca.int.haoyugu.com ([198.58.242.173]) by smtp.gmail.com with ESMTPSA id af79cd13be357-92e801949d9sm12876685a.36.2026.07.01.11.52.37 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 01 Jul 2026 11:52:37 -0700 (PDT) From: Emil Tsalapatis To: bpf@vger.kernel.org Cc: ast@kernel.org, andrii@kernel.org, memxor@gmail.com, daniel@iogearbox.net, eddyz87@gmail.com, mattbobrowski@google.com, song@kernel.org, Emil Tsalapatis Subject: [PATCH bpf-next v2 0/5] selftests/bpf: libarena cleanup and bitmap struct Date: Wed, 1 Jul 2026 14:52:30 -0400 Message-ID: <20260701185235.4516-1-emil@etsalapatis.com> X-Mailer: git-send-email 2.54.0 Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Cleanup patches for libarena, along with a new bitmap data type that is in use by sched-ext. Patch 1 is an NFC that properly renames the buddy selftests for consistency. Patch 2 fixes the zero variable used in libarena for can_loop based looping, and afterwrds removes all bpf_for() instances from the code. Patch 3 fixes an (untriggered) edge case that could cause spurious selftest failures. Finally, patches 4 and 5 introduce the bitmap data structure along with selftests. Signed-off-by: Emil Tsalapatis CHANGELOG v1 -> v2: (https://lore.kernel.org/bpf/20260618085626.19633-1-emil@etsalapatis.com) - Added acks by Ihor and Eduard - Fix missing commit message (Ihor) - Enforce 64 bits per cell with BITS_TO_LONG_LONG (Sashiko) - Add test for bmp_copy (Ihor) - Add atomic versions of _set() and _clear() (Ihor) and add a parallel selftest for them. Emil Tsalapatis (5): selftests/bpf: libarena: Fix can-loop zero variable definition selftests/bpf: libarena: Clean up allocation state before buddy tests selftests/bpf: Add arena-based bitmap data structure selftests/bpf: libarena: Add bitmap selftets selftests/bpf: libarena: Add parallel bitmap selftest .../bpf/libarena/include/libarena/bitmap.h | 34 ++ .../bpf/libarena/include/libarena/common.h | 2 +- .../libarena/selftests/test_asan_buddy.bpf.c | 8 +- .../bpf/libarena/selftests/test_bitmap.bpf.c | 394 ++++++++++++++++++ .../bpf/libarena/selftests/test_buddy.bpf.c | 8 +- .../selftests/test_parallel_bitmap.bpf.c | 191 +++++++++ .../selftests/test_parallel_spmc.bpf.c | 9 +- .../selftests/bpf/libarena/src/bitmap.bpf.c | 245 +++++++++++ .../selftests/bpf/libarena/src/common.bpf.c | 9 +- .../selftests/bpf/prog_tests/libarena.c | 8 +- .../selftests/bpf/prog_tests/libarena_asan.c | 8 +- 11 files changed, 900 insertions(+), 16 deletions(-) create mode 100644 tools/testing/selftests/bpf/libarena/include/libarena/bitmap.h create mode 100644 tools/testing/selftests/bpf/libarena/selftests/test_bitmap.bpf.c create mode 100644 tools/testing/selftests/bpf/libarena/selftests/test_parallel_bitmap.bpf.c create mode 100644 tools/testing/selftests/bpf/libarena/src/bitmap.bpf.c -- 2.54.0