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{ "id": 2222708, "url": "http://patchwork.ozlabs.org/api/1.1/covers/2222708/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/cover/20260413214549.926435-1-junjie.cao@intel.com/", "project": { "id": 14, "url": "http://patchwork.ozlabs.org/api/1.1/projects/14/?format=api", "name": "QEMU Development", "link_name": "qemu-devel", "list_id": "qemu-devel.nongnu.org", "list_email": "qemu-devel@nongnu.org", "web_url": "", "scm_url": "", "webscm_url": "" }, "msgid": "<20260413214549.926435-1-junjie.cao@intel.com>", "date": "2026-04-13T21:45:45", "name": "[v3,0/4] io/channel: complete pread/pwrite_all API and fix multifd_file_recv_data", "submitter": { "id": 91537, "url": "http://patchwork.ozlabs.org/api/1.1/people/91537/?format=api", "name": "Junjie Cao", "email": "junjie.cao@intel.com" }, "mbox": "http://patchwork.ozlabs.org/project/qemu-devel/cover/20260413214549.926435-1-junjie.cao@intel.com/mbox/", "series": [ { "id": 499708, "url": "http://patchwork.ozlabs.org/api/1.1/series/499708/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/list/?series=499708", "date": "2026-04-13T21:45:46", "name": "io/channel: complete pread/pwrite_all API and fix multifd_file_recv_data", "version": 3, "mbox": "http://patchwork.ozlabs.org/series/499708/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/covers/2222708/comments/", "headers": { "Return-Path": "<qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>", "X-Original-To": "incoming@patchwork.ozlabs.org", "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=intel.com header.i=@intel.com header.a=rsa-sha256\n header.s=Intel header.b=b4F/+Tdz;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org\n (client-ip=209.51.188.17; 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a=\"80885616\"", "E=Sophos;i=\"6.23,177,1770624000\"; d=\"scan'208\";a=\"80885616\"", "E=Sophos;i=\"6.23,177,1770624000\"; d=\"scan'208\";a=\"234770323\"" ], "X-ExtLoop1": "1", "From": "Junjie Cao <junjie.cao@intel.com>", "To": "qemu-devel@nongnu.org", "Cc": "berrange@redhat.com, peterx@redhat.com, farosas@suse.de,\n junjie.cao@intel.com", "Subject": "[PATCH v3 0/4] io/channel: complete pread/pwrite_all API and fix\n multifd_file_recv_data", "Date": "Tue, 14 Apr 2026 05:45:45 +0800", "Message-ID": "<20260413214549.926435-1-junjie.cao@intel.com>", "X-Mailer": "git-send-email 2.43.0", "MIME-Version": "1.0", "Content-Type": "text/plain; charset=UTF-8", "Content-Transfer-Encoding": "8bit", "Received-SPF": "pass client-ip=198.175.65.14;\n envelope-from=junjie.cao@intel.com;\n helo=mgamail.intel.com", "X-Spam_score_int": "-29", "X-Spam_score": "-3.0", "X-Spam_bar": "---", "X-Spam_report": "(-3.0 / 5.0 requ) BAYES_00=-1.9, DATE_IN_FUTURE_06_12=1.947,\n DKIMWL_WL_HIGH=-0.54, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1,\n DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_MED=-2.3,\n RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=0.001,\n SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no", "X-Spam_action": "no action", "X-BeenThere": "qemu-devel@nongnu.org", "X-Mailman-Version": "2.1.29", "Precedence": "list", "List-Id": "qemu development <qemu-devel.nongnu.org>", "List-Unsubscribe": "<https://lists.nongnu.org/mailman/options/qemu-devel>,\n <mailto:qemu-devel-request@nongnu.org?subject=unsubscribe>", "List-Archive": "<https://lists.nongnu.org/archive/html/qemu-devel>", "List-Post": "<mailto:qemu-devel@nongnu.org>", "List-Help": "<mailto:qemu-devel-request@nongnu.org?subject=help>", "List-Subscribe": "<https://lists.nongnu.org/mailman/listinfo/qemu-devel>,\n <mailto:qemu-devel-request@nongnu.org?subject=subscribe>", "Errors-To": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org", "Sender": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org" }, "content": "This series fixes two bugs in multifd_file_recv_data() and completes\nthe positioned read/write \"all\" API set for QIO channels.\n\nBug summary:\n - size_t variable storing ssize_t return: -1 wraps to SIZE_MAX\n - error_prepend() called without ERRP_GUARD(): NULL deref on short read\n\nChanges since v2:\n - Added qio_channel_pread_all_eof() to complete the API set (Daniel)\n - Added pwrite_all / pwritev_all variants (Daniel)\n - Reworked doc comments to match existing API style (Daniel)\n - Added Fixes tag, expanded _eof test coverage, added CONFIG_PREADV guard\n\nChanges since v1:\n - Used approach (b): add pread_all API instead of local retry loop\n (Daniel, Peter)\n\nv2: https://lore.kernel.org/qemu-devel/20260318140113.434-1-junjie.cao@intel.com/\nv1: https://lore.kernel.org/qemu-devel/20260316084618.52-1-junjie.cao@intel.com/\n\nJunjie Cao (4):\n io/channel: introduce qio_channel_pread{v,}_all{,_eof}()\n io/channel: introduce qio_channel_pwrite{v,}_all()\n migration/file: fix type mismatch and NULL deref in\n multifd_file_recv_data\n tests/unit: add pread/pwrite _all tests for io channel file\n\n include/io/channel.h | 133 +++++++++++++++++++\n io/channel.c | 139 ++++++++++++++++++++\n migration/file.c | 13 +-\n tests/unit/test-io-channel-file.c | 207 ++++++++++++++++++++++++++++++\n 4 files changed, 486 insertions(+), 6 deletions(-)" }