From patchwork Thu Jun 20 17:56:25 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yury Norov X-Patchwork-Id: 808492 Received: from mail-pg1-f177.google.com (mail-pg1-f177.google.com [209.85.215.177]) (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 7123B1B4C58; Thu, 20 Jun 2024 17:57:15 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.215.177 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718906237; cv=none; b=FJ8phEsz78lRnitDHCh+w4eVHrzyGi3vpzRIvhrz06weKgk5cyYWuE3yQs1NitoS998K2+bYUik7yk1BIlPmPrveaCW3l55OwWvH74Mhtwem695h1yCxIFMwseUJKorXNQMvwHYX/XLWx10aR3QdRAtxqxhmG5bX/R5yKL3lLT8= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718906237; c=relaxed/simple; bh=AaGeTjrw0FfF+0h9/U20FA8dwnbicgFR6M2oz4CBhwo=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=saYHHK/gETN5oulQHjzRo+QjFppqP/bhScEzFupoMpZXpjHlXC676vdwyHmVjGxpJtgOjtsy8M5LZuXp3wFO0OIw7BhSZX8I21rTvoTi/kcy32AijbckXhOYSWUctodNyeFkLKGwzb8GtGvvKtuFYwH4KR6+YcKnSlogJlfwvEo= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=KKbhWgKz; arc=none smtp.client-ip=209.85.215.177 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="KKbhWgKz" Received: by mail-pg1-f177.google.com with SMTP id 41be03b00d2f7-6e3ff7c4cc8so879911a12.3; Thu, 20 Jun 2024 10:57:15 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1718906235; x=1719511035; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=93DcC67mVeY/+nPj/RabbHCmpdvAxDoR+WvyjbP4Fv8=; b=KKbhWgKz9TSMkT6GJx+oHzkl14SBbVxhVprFE8KF/u/HwKkgFovEPas7JNigg1VVpd IzxkpMh6nT0UVYcmNhjwq9MIlDRt7g4yYmm1O8iWkPVeTFXREfOb3nd8oxVGrFb4hivT frnx7AjBvakMunPftb+HPJfaJzv7MEmRKL11bKx73fKKPvm19ZVUblrFVREqAa9HlPBz RnyS7gfOlRGCSNyKlrjaT9fU7aG15/2c0Sivad/bbqBvx9C6z5bFVhQxYqskkBgTBcvI dFbp2Vcg+7ym42AldglDeF/T0hQztGy2EkhncU7SuJCrN+Lx13DpCFbN8QA+JJYBhXJr ugWw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1718906235; x=1719511035; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=93DcC67mVeY/+nPj/RabbHCmpdvAxDoR+WvyjbP4Fv8=; b=aUGjv/A8mdkdH7XtdU+XpiM18b9wp6RwlvA94ToqCLV3JXdwI8UxzOGZ4/Pe7s7Vrs tYS3qxbCw8BrH3DA2S+Uw7m2acxtI8VWt3UGstQHXMwOeHQ9Y4RvWyhpYVpsyuKWYwx0 7W/mqV+n6PjY85hFK1TnEc2oKbj3TIdgKI8rfdV4gJgO3hS5szd5Dg+Ximz0NMcdAxx8 UAnfIyKkRewgk17aTUR8LpSw7iz1fiL7Mw/WxemlVlJC6J+BrDrp6mL6Jx2KepoJqPVd okjrEEY9AjEj/rZPKkORGxp27RQgRjTeZ5twhRtfOVktktAOcg75oJRtMFKKsQE2q0zh jHXg== X-Forwarded-Encrypted: i=1; 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 X-Gm-Message-State: AOJu0Yx5frqbE7XwDrj7MGKWoBtAdKKoiU8VtdHN2IEA/JB4LxxmDYel YuuoFvMDzov7GE7AMhbcIt4V2nRa0W4yqzZOH4x6UlAyn+vMhtKMV29e1XxwYF0= X-Google-Smtp-Source: AGHT+IF9ITZbJ7vVNEYTX8RCffN7BEtSM9imchEPcbZOZxImDJdvzQARxKbAqm1aXg+Hi0vjNW3ABQ== X-Received: by 2002:a17:902:f687:b0:1f6:fcd9:5b86 with SMTP id d9443c01a7336-1f9aa3ecca8mr64371665ad.12.1718906234591; Thu, 20 Jun 2024 10:57:14 -0700 (PDT) Received: from localhost ([216.228.127.128]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-1f9d28ce155sm15196715ad.259.2024.06.20.10.57.13 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 20 Jun 2024 10:57:14 -0700 (PDT) From: Yury Norov To: linux-kernel@vger.kernel.org, "David S. Miller" , "H. Peter Anvin" , "James E.J. Bottomley" , "K. Y. Srinivasan" , "Md. Haris Iqbal" , Akinobu Mita , Andrew Morton , Bjorn Andersson , Borislav Petkov , Chaitanya Kulkarni , Christian Brauner , Damien Le Moal , Dave Hansen , David Disseldorp , Edward Cree , Eric Dumazet , Fenghua Yu , Geert Uytterhoeven , Greg Kroah-Hartman , Gregory Greenman , Hans Verkuil , Hans de Goede , Hugh Dickins , Ingo Molnar , Jakub Kicinski , Jaroslav Kysela , Jason Gunthorpe , Jens Axboe , Jiri Pirko , Jiri Slaby , Kalle Valo , Karsten Graul , Karsten Keil , Kees Cook , Leon Romanovsky , Mark Rutland , Martin Habets , Mauro Carvalho Chehab , Michael Ellerman , Michal Simek , Nicholas Piggin , Oliver Neukum , Paolo Abeni , Paolo Bonzini , Peter Zijlstra , Ping-Ke Shih , Rich Felker , Rob Herring , Robin Murphy , Sean Christopherson , Shuai Xue , Stanislaw Gruszka , Steven Rostedt , Thomas Bogendoerfer , Thomas Gleixner , Valentin Schneider , Vitaly Kuznetsov , Wenjia Zhang , Will Deacon , Yoshinori Sato , GR-QLogic-Storage-Upstream@marvell.com, alsa-devel@alsa-project.org, ath10k@lists.infradead.org, dmaengine@vger.kernel.org, iommu@lists.linux.dev, kvm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-arm-msm@vger.kernel.org, linux-block@vger.kernel.org, linux-bluetooth@vger.kernel.org, linux-hyperv@vger.kernel.org, linux-m68k@lists.linux-m68k.org, linux-media@vger.kernel.org, linux-mips@vger.kernel.org, linux-net-drivers@amd.com, linux-pci@vger.kernel.org, linux-rdma@vger.kernel.org, linux-s390@vger.kernel.org, linux-scsi@vger.kernel.org, linux-serial@vger.kernel.org, linux-sh@vger.kernel.org, linux-sound@vger.kernel.org, linux-usb@vger.kernel.org, linux-wireless@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, mpi3mr-linuxdrv.pdl@broadcom.com, netdev@vger.kernel.org, sparclinux@vger.kernel.org, x86@kernel.org Cc: Yury Norov , Alexey Klimov , Bart Van Assche , Jan Kara , Linus Torvalds , Matthew Wilcox , Mirsad Todorovac , Rasmus Villemoes , Sergey Shtylyov Subject: [PATCH v4 02/40] lib/find: add test for atomic find_bit() ops Date: Thu, 20 Jun 2024 10:56:25 -0700 Message-ID: <20240620175703.605111-3-yury.norov@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240620175703.605111-1-yury.norov@gmail.com> References: <20240620175703.605111-1-yury.norov@gmail.com> Precedence: bulk X-Mailing-List: linux-serial@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Add basic functionality test for new API. Signed-off-by: Yury Norov --- lib/test_bitmap.c | 62 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 62 insertions(+) diff --git a/lib/test_bitmap.c b/lib/test_bitmap.c index 65a75d58ed9e..405f79dd2266 100644 --- a/lib/test_bitmap.c +++ b/lib/test_bitmap.c @@ -6,6 +6,7 @@ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt #include +#include #include #include #include @@ -221,6 +222,65 @@ static void __init test_zero_clear(void) expect_eq_pbl("", bmap, 1024); } +static void __init test_find_and_bit(void) +{ + unsigned long w, w_part, bit, cnt = 0; + DECLARE_BITMAP(bmap, EXP1_IN_BITS); + + /* + * Test find_and_clear{_next}_bit() and corresponding + * iterators + */ + bitmap_copy(bmap, exp1, EXP1_IN_BITS); + w = bitmap_weight(bmap, EXP1_IN_BITS); + + for_each_test_and_clear_bit(bit, bmap, EXP1_IN_BITS) + cnt++; + + expect_eq_uint(w, cnt); + expect_eq_uint(0, bitmap_weight(bmap, EXP1_IN_BITS)); + + bitmap_copy(bmap, exp1, EXP1_IN_BITS); + w = bitmap_weight(bmap, EXP1_IN_BITS); + w_part = bitmap_weight(bmap, EXP1_IN_BITS / 3); + + cnt = 0; + bit = EXP1_IN_BITS / 3; + for_each_test_and_clear_bit_from(bit, bmap, EXP1_IN_BITS) + cnt++; + + expect_eq_uint(bitmap_weight(bmap, EXP1_IN_BITS), bitmap_weight(bmap, EXP1_IN_BITS / 3)); + expect_eq_uint(w_part, bitmap_weight(bmap, EXP1_IN_BITS)); + expect_eq_uint(w - w_part, cnt); + + /* + * Test find_and_set{_next}_bit() and corresponding + * iterators + */ + bitmap_copy(bmap, exp1, EXP1_IN_BITS); + w = bitmap_weight(bmap, EXP1_IN_BITS); + cnt = 0; + + for_each_test_and_set_bit(bit, bmap, EXP1_IN_BITS) + cnt++; + + expect_eq_uint(EXP1_IN_BITS - w, cnt); + expect_eq_uint(EXP1_IN_BITS, bitmap_weight(bmap, EXP1_IN_BITS)); + + bitmap_copy(bmap, exp1, EXP1_IN_BITS); + w = bitmap_weight(bmap, EXP1_IN_BITS); + w_part = bitmap_weight(bmap, EXP1_IN_BITS / 3); + cnt = 0; + + bit = EXP1_IN_BITS / 3; + for_each_test_and_set_bit_from(bit, bmap, EXP1_IN_BITS) + cnt++; + + expect_eq_uint(EXP1_IN_BITS - bitmap_weight(bmap, EXP1_IN_BITS), + EXP1_IN_BITS / 3 - bitmap_weight(bmap, EXP1_IN_BITS / 3)); + expect_eq_uint(EXP1_IN_BITS * 2 / 3 - (w - w_part), cnt); +} + static void __init test_find_nth_bit(void) { unsigned long b, bit, cnt = 0; @@ -1482,6 +1542,8 @@ static void __init selftest(void) test_for_each_clear_bitrange_from(); test_for_each_set_clump8(); test_for_each_set_bit_wrap(); + + test_find_and_bit(); } KSTM_MODULE_LOADERS(test_bitmap);