From patchwork Thu Mar 6 16:27:51 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Breno Leitao X-Patchwork-Id: 14004845 Received: from mail-ej1-f42.google.com (mail-ej1-f42.google.com [209.85.218.42]) (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 92A0A21D3E7; Thu, 6 Mar 2025 16:28:04 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.218.42 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1741278486; cv=none; b=sTzv2aFwv5rowEn00cauGoDnuYovzE8AlnKezS5q7WKtP0boBAqyxttJcSTlg/ArcYpSILjvdqSSlxovYM862rUpZLEUN1NFwxPujiB+tLWrlCrFqotoyYCgiXrfN7wzhmRqfF9MVIMOI6pV9qhugvVtLcaDX6k6SE4Tu5R/Q4g= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1741278486; c=relaxed/simple; bh=RieI6T8+GnLltjFdq+B3y0WTT5CK4xQkz/PyogGNpso=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:To:Cc; b=oaDwyM9oGuHU9cx/RPDwK9TIN0xk5C9CU9Nyji62vaO3jQrHb1sblDHpypTecixH8x61uQrnaUm4jUqqB458SJlWjYYoPnSGepJ2hrVOk9qaCu3+D0u1Q0ck30TnI3Lx2/ySWgg4c328CKu3mlwNodOYk+zKXK+CqN+Gq9GUpK4= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=debian.org; spf=pass smtp.mailfrom=gmail.com; arc=none smtp.client-ip=209.85.218.42 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=debian.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Received: by mail-ej1-f42.google.com with SMTP id a640c23a62f3a-aaec111762bso168363766b.2; Thu, 06 Mar 2025 08:28:04 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1741278483; x=1741883283; h=cc:to:message-id:content-transfer-encoding:mime-version:subject :date:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=zWz3562ixpgOjZyLkTmlCW12K3CVuT3pKkHg+iSiURk=; b=ky+gxJFj8A1EZWesaz7LmEXiy3Al80geBNWoJl0bsAtXOFcrVY7PkPEmloofxUBVJi +fPuzvfRiNXotoUwBJCXGbCl02zUsIig+gs2KMPeG+0ai2+SdeZCm7rU2Kk3KJJ+vPfO 6AcB1sSj6dT0XEaaLUpu0/k5GnVGU0qrpieCaHOSJG2vaHQsPbxtPTbKAyGpwNxKbouv fi5OEXtDMsH4zLWKK6UhPaC0PFcyY/y4lMTtpg8zV6oW9xBHI4e2Y/aCHQY7ZK7TgpDV GwdaCWzq9FHr6K+bS1GPUAx7mhvFoaL9iFsdpvQFCxmBiBCLBKEdYZ2DdH7Tk1dL2R+P 4jJg== X-Forwarded-Encrypted: i=1; AJvYcCWvRY/CRnBGZeh/YFxJt7jewuPuOGirVbmKwvFZ3u2iMH/A591uEx5RomtPrYp3s37d2i0=@vger.kernel.org, AJvYcCXl7I1Zz0TbJCHdrLOt0Duwhyb8IROImD9JpIrdk07bks5sc4VzndG2ENPohH9HU65/vDy7CLUG3XyG1Qjj@vger.kernel.org X-Gm-Message-State: AOJu0YwxMy1gcpiGHB2BBqJWDQFyP9GbDORSvqPwP4J2C5sTjSadhv6G mMnW3RznsSfcm+fjIgoqxmgqWw8Bx7szonI6EcQPvjo/qH+fKPdP X-Gm-Gg: ASbGncu4ffDkAbLF01e4AuSp6/VDieSSjBIA190UEo0ACccl/oZrSzPHhE6W3i1mtX3 QuToHbN5cDOuYsTKtG0bW8Xgdx0EB60d80c+/CWYgTU8W4cka0bZ82JjlxB+1+/q3UoM22ia7Od fPhW7gOk6MR2N+L9N+5+0Tcou5J4wH444ARKL9C6pIhhatjkZEWTRYkaU608X/U8iXAUTQsylYa nD92WFPfCI3T1xIl3ZIfVQwphoJR1xKo1BTB4NsDBalh+uRj/vHSQV81gEqN4v/5C+FycakAHpT FiRc4w0hYKfjeN9I3L6o6tLWDHyV7CzMIF7+ X-Google-Smtp-Source: AGHT+IEJV2JOj1YXcWKWdKaU/xsu6mOtDGDJCcjrKsMH1t7e24mfeW+ZSvxc5C6UG8THTxQ2XKEKFg== X-Received: by 2002:a17:906:6290:b0:ac1:d878:f87d with SMTP id a640c23a62f3a-ac20db04e4bmr917411066b.56.1741278482515; Thu, 06 Mar 2025 08:28:02 -0800 (PST) Received: from localhost ([2a03:2880:30ff:70::]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-ac23973a74bsm115734966b.123.2025.03.06.08.28.01 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 06 Mar 2025 08:28:01 -0800 (PST) From: Breno Leitao Date: Thu, 06 Mar 2025 08:27:51 -0800 Subject: [PATCH] block: Name the RQF flags enum Precedence: bulk X-Mailing-List: linux-block@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20250306-rqf_flags-v1-1-bbd64918b406@debian.org> X-B4-Tracking: v=1; b=H4sIAAbNyWcC/x3MUQqAIBAFwKss7zvBjIK8SkRYrrUQVgoRhHcPm gPMi8xJOMPSi8S3ZDkiLNUVYdlcXFmJhyUYbVrd6E6lK0xhd2tWvfOzq72Z2QRUhDNxkOe/hrG UDyo4NfhbAAAA X-Change-ID: 20250306-rqf_flags-9adba1d2be2f To: Jens Axboe Cc: linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, bpf@vger.kernel.org, kernel-team@meta.com, Yonghong Song , Breno Leitao X-Mailer: b4 0.15-dev-42535 X-Developer-Signature: v=1; a=openpgp-sha256; l=1399; i=leitao@debian.org; h=from:subject:message-id; bh=RieI6T8+GnLltjFdq+B3y0WTT5CK4xQkz/PyogGNpso=; b=owEBbQKS/ZANAwAIATWjk5/8eHdtAcsmYgBnyc0QW/hz0BGrRvx8XmUY7nab78lXrA0HoGbbN Jh8nRxPDEKJAjMEAAEIAB0WIQSshTmm6PRnAspKQ5s1o5Of/Hh3bQUCZ8nNEAAKCRA1o5Of/Hh3 bdo4EACQnyP8l8apbcsGVhMgcyjKLgdrM9fPbwprHvM2TtW2qrmIm8Cy/g+R4EhQvNJ3erB0prR XyxKI4A91hNfQ5b/cEADyIwv8iXP5djZNhex+09TZLdCJuy7ujCz9DDuu6hf25wgPEHhHhXadBJ 9e7VxmRPEwFQZKO/miEAjkxPg9G5fMYxK9vHrKr+xYOqpg1gAVfHyhsTq/rZgR43YjG7h5idpR8 5FEGM2by5b/LQAL7H0cRTL1i5OXEBobjf5t16fA9d1ibijRhKVglbuvYr/XS/1qOxVf+bbwGwVp 1aukJqRge6lZOzdL0/LwrWQpDr1V2pT+55ayVDlkJ/v7EA3VEmhgQ/CV0yJ/4RSAbIx4712cQGq gMYNwGaK2s+5QLk6jwD6qYsYpwNZ22+U5Bqs2ZWvz4l2D28rbD9F3JPEGS+K2V+dfXGVRdWGJxt 9UKWf7nq09QIrkcxzOhNeGTmsNQTxbMGfn4DocdPQmnJqKnoAnWQ8ydIeNvlHtKWNWTFKdpeR/Z 29POjUD/cqUCJQUmXy1yR2UzAGUX5ZzU1RPDiyBFya5Ou5X1Fc/j8FGFLYImdu3Qp+1cvUK8DMN ArhsS2+GBBstUsrkbZ1xRXsxFaQXScsOh+r607Vz2ZPrW3IBXNuf+NeM2x71dIsc2oJQe0l6+JU CfBlPbHTIsQdxBw== X-Developer-Key: i=leitao@debian.org; a=openpgp; fpr=AC8539A6E8F46702CA4A439B35A3939FFC78776D Commit 5f89154e8e9e3445f9b59 ("block: Use enum to define RQF_x bit indexes") converted the RQF flags to an anonymous enum, which was a beneficial change. This patch goes one step further by naming the enum as "rqf_flags". This naming enables exporting these flags to BPF clients, eliminating the need to duplicate these flags in BPF code. Instead, BPF clients can now access the same kernel-side values through CO:RE (Compile Once, Run Everywhere), as shown in this example: rqf_stats = bpf_core_enum_value(enum rqf_flags, __RQF_STATS) Suggested-by: Yonghong Song Signed-off-by: Breno Leitao --- include/linux/blk-mq.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- base-commit: c42048cee22435a6ea0de68cc02231cf359ca8b2 change-id: 20250306-rqf_flags-9adba1d2be2f Best regards, diff --git a/include/linux/blk-mq.h b/include/linux/blk-mq.h index fa2a76cc2f73d..71f4f0cc3dac6 100644 --- a/include/linux/blk-mq.h +++ b/include/linux/blk-mq.h @@ -28,7 +28,7 @@ typedef enum rq_end_io_ret (rq_end_io_fn)(struct request *, blk_status_t); typedef __u32 __bitwise req_flags_t; /* Keep rqf_name[] in sync with the definitions below */ -enum { +enum rqf_flags { /* drive already may have started this one */ __RQF_STARTED, /* request for flush sequence */