From mboxrd@z Thu Jan 1 00:00:00 1970 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 4BB551A3AB0; Wed, 11 Sep 2024 16:34:24 +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=1726072465; cv=none; b=nyCXQgfOg+odOoZX0A/HJwuBgOvGvrB2OTC0v0O6Z3kjK6sP7NnO7ksBvZMajrdPFPn8Vhlj8amwpwbQNjX/WLiofQ2qm8KL7bFlvotHfTBwNHLk0c2w1LV/J3igVPOoCtXSyJg2nBzOyJn7Fuv4OQ92ScZdVU0xNOvqoIW57H8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1726072465; c=relaxed/simple; bh=THxi2fdst1mrp9grDb0k3ERw8bEb5E1Jtp6pCASNW3U=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=ullD0Sja3mRmBDesQAyjsBDVOwbj/ZTNs/upfnHLfS9XDtAa4PQJFyAATR/+aFIFshHJK/jisjVvURHq+HGPsl1D+BD9dZ2n3pm6AULL+ct6KFqddtu+IN9gndr6KE9MDzrpd6QGfDzj8a8HkQsx3K3muxRJcv9xlejAS5NrwxY= 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=Xbfs0hNG; arc=none smtp.client-ip=209.85.218.42 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="Xbfs0hNG" Received: by mail-ej1-f42.google.com with SMTP id a640c23a62f3a-a8d29b7edc2so4061166b.1; Wed, 11 Sep 2024 09:34:24 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1726072462; x=1726677262; 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=JMtXVHkqQbVZYjnenJKozcU9t1oo3mrhS0t1pBayqX0=; b=Xbfs0hNGQYdiRn3EA/bD0E5QUqUFTdzmZZ6wn2YDauXPdh+Wirxp6qlfACTKI3u+a/ roQOR71l+5bUn900ZVF3iGUHq51I8GPNJpgjK8FcajtvKx42UBwdl1nHkXciVFUaiScO uPqodcV0CatmAf3MepQv2dFgxRdLHkjSPHfDFEUw7gflL9X3A06jkNX55QcVRsES157K RrQzYpzt/3qbf+Dclq32mr6jmwBwYMFIQiaIltMuNJklvSKKtFw+qqgzsajRfHWOXlUN 5PYe5ZmutHXUAGt4c85FQywUl7jH3ylFTsMMz/VsBOsBrorb4N06YzMgK7wfLuw3Q1zJ V1Ug== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1726072462; x=1726677262; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=JMtXVHkqQbVZYjnenJKozcU9t1oo3mrhS0t1pBayqX0=; b=HS0/Wq/notfV3s9CAJvgDSYEBisblLYKdOSOymFLNmmp/T0ZCoT0e26EUEi3mQqkFO q8aKD1QNaeF/H1Smy1Pt/vP+mApU+y50teYIZAzZLj9HeqtMUqO6eNFew3R98GKTIdAM ic9YjrkE3ElYbr1ujpscwR0Oa4NZJo/eN/BluUX4sPvHta5HmmPE2QwFeCCFFfF6tOde gIUwjOfSiZe7O/bnVCiyuHBbHnzhEEsh8slztJmZUPjsA1a7AjzyaO6WAO5k+sjsfMwH jMAl2e+xVbkQ4+1epsQIFYEhMZJUUp5eEPquKCd5PA2O9C23qdgRquF4PLTluVkX5vBn i57g== X-Forwarded-Encrypted: i=1; AJvYcCXKGxFHlrYnyyTtzswDM+zto2Vvv6OeVHPc3wFapDfk9U2NbYnz4097NORRRnbrJxfyZplRnomg1k+Khg==@vger.kernel.org X-Gm-Message-State: AOJu0YwHXsqz1aY+4Z+tCKdYyEOhh2IUkG7Sq4MwwY3H0pTC+rs7gI1v DQVCQEMWDIx5FvDXnPaM5ndN+EnHJtShzHxWxUYuoVLnM9hbQuUlWYj/xak7 X-Google-Smtp-Source: AGHT+IGjuO6kXZBiH/YIXMFCm9Da9OqH+kOJ25he8cNe8qOZqvyK5g024tTbFGMJIxveiGd9EzI8/w== X-Received: by 2002:a17:906:d555:b0:a8d:5e1a:8d80 with SMTP id a640c23a62f3a-a902961ab79mr6013366b.40.1726072461451; Wed, 11 Sep 2024 09:34:21 -0700 (PDT) Received: from 127.0.0.1localhost ([163.114.131.193]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-a8d25c72ed3sm631820866b.135.2024.09.11.09.34.20 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 11 Sep 2024 09:34:20 -0700 (PDT) From: Pavel Begunkov To: io-uring@vger.kernel.org Cc: Jens Axboe , asml.silence@gmail.com, linux-block@vger.kernel.org, linux-mm@kvack.org, Christoph Hellwig Subject: [PATCH v5 0/8] implement async block discards and other ops via io_uring Date: Wed, 11 Sep 2024 17:34:36 +0100 Message-ID: X-Mailer: git-send-email 2.45.2 Precedence: bulk X-Mailing-List: io-uring@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit There is an interest in having asynchronous block operations like discard and write zeroes. The series implements that as io_uring commands, which is an io_uring request type allowing to implement custom file specific operations. First 4 are preparation patches. Patch 5 introduces the main chunk of cmd infrastructure and discard commands. Patches 6-8 implement write zeroes variants. Branch with tests and docs: https://github.com/isilence/liburing.git discard-cmd The man page specifically (need to shuffle it to some cmd section): https://github.com/isilence/liburing/commit/a6fa2bc2400bf7fcb80496e322b5db4c8b3191f0 v5: add uapi/linux/blkdev.h number block cmd opcodes starting from IOC seq 0 don't export bio_discard_limit(), return to v2 and put bio if nowait can't proceed minor comment and stylistics changes v4: fix failing to pass nowait (unused opf) in patch 7 v3: use GFP_NOWAIT for non-blocking allocation fail oversized nowait discards in advance drop secure erase and add zero page writes renamed function name + other cosmetic changes use IOC / ioctl encoding for cmd opcodes v2: move out of CONFIG_COMPAT add write zeroes & secure erase drop a note about interaction with page cache Pavel Begunkov (8): io_uring/cmd: expose iowq to cmds io_uring/cmd: give inline space in request to cmds filemap: introduce filemap_invalidate_pages block: introduce blk_validate_byte_range() block: implement async io_uring discard cmd block: implement write zeroes io_uring cmd block: add nowait flag for __blkdev_issue_zero_pages block: implement write zero pages cmd block/blk-lib.c | 22 +++- block/blk.h | 1 + block/fops.c | 2 + block/ioctl.c | 242 ++++++++++++++++++++++++++++++++--- include/linux/bio.h | 4 + include/linux/blkdev.h | 1 + include/linux/io_uring/cmd.h | 15 +++ include/linux/pagemap.h | 2 + include/uapi/linux/blkdev.h | 16 +++ io_uring/io_uring.c | 11 ++ io_uring/io_uring.h | 1 + io_uring/uring_cmd.c | 7 + mm/filemap.c | 17 ++- 13 files changed, 314 insertions(+), 27 deletions(-) create mode 100644 include/uapi/linux/blkdev.h -- 2.45.2