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GET /api/patches/2216768/?format=api
{ "id": 2216768, "url": "http://patchwork.ozlabs.org/api/patches/2216768/?format=api", "web_url": "http://patchwork.ozlabs.org/project/sparclinux/patch/20260327061704.3707577-24-hch@lst.de/", "project": { "id": 10, "url": "http://patchwork.ozlabs.org/api/projects/10/?format=api", "name": "Linux SPARC Development ", "link_name": "sparclinux", "list_id": "sparclinux.vger.kernel.org", "list_email": "sparclinux@vger.kernel.org", "web_url": null, "scm_url": null, "webscm_url": null, "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20260327061704.3707577-24-hch@lst.de>", "list_archive_url": null, "date": "2026-03-27T06:16:55", "name": "[23/28] xor: add a better public API", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "29d8dcd9c2b31ed617651729258b502b5334f6ce", "submitter": { "id": 82, "url": "http://patchwork.ozlabs.org/api/people/82/?format=api", "name": "Christoph Hellwig", "email": "hch@lst.de" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/sparclinux/patch/20260327061704.3707577-24-hch@lst.de/mbox/", "series": [ { "id": 497694, "url": "http://patchwork.ozlabs.org/api/series/497694/?format=api", "web_url": "http://patchwork.ozlabs.org/project/sparclinux/list/?series=497694", "date": "2026-03-27T06:16:33", "name": "[01/28] xor: assert that xor_blocks is not call from interrupt context", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/497694/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2216768/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2216768/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "\n <SRS0=dGNM=B3=vger.kernel.org=sparclinux+bounces-6598-patchwork-incoming=ozlabs.org@ozlabs.org>", "X-Original-To": [ "incoming@patchwork.ozlabs.org", "sparclinux@vger.kernel.org" ], "Delivered-To": [ "patchwork-incoming@legolas.ozlabs.org", "patchwork-incoming@ozlabs.org" ], "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n secure) header.d=infradead.org header.i=@infradead.org header.a=rsa-sha256\n header.s=bombadil.20210309 header.b=l+ttE0MC;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=ozlabs.org\n (client-ip=2404:9400:2221:ea00::3; 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arc=none smtp.client-ip=198.137.202.133" ], "DKIM-Signature": "v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed;\n\td=infradead.org; s=bombadil.20210309; h=Content-Transfer-Encoding:\n\tMIME-Version:References:In-Reply-To:Message-ID:Date:Subject:Cc:To:From:Sender\n\t:Reply-To:Content-Type:Content-ID:Content-Description;\n\tbh=P3w+KEj1wa0C4hNOnOEnd9y3/Pxg+KbzaMJG30EKK70=; b=l+ttE0MC9G6ho9IaPAv/LIkOX+\n\tg3+5OazTD19hbTLF39MLoWzdY77vsGvc2FA6pd50aBzvYpAO6dliJJ/YdOK7ynRWK1lcpr8++cdFa\n\tV5ZtJn2svmamskVdnsGQiqmQxcJHtkWMOkQcgf9IbbLjQ4Xls4FH6r2xZx9aUzlDD9FOkUYidsIBk\n\to4SiJdQEbLx1rDvjQ5karHVhmE9p7lbhI/AdVeFUBiftHk8thubRUUhZqpkslu2aVvqPVEXAaJPbL\n\tQmU14duTT+VlfrbDGdOqzp7K8+pn7vyLbYocFJCcD3DochkacdX6W/tRtgSApkFaP7lTYTADhoH/R\n\tSkkmi1Gg==;", "From": "Christoph Hellwig <hch@lst.de>", "To": "Andrew Morton <akpm@linux-foundation.org>", "Cc": "Richard Henderson <richard.henderson@linaro.org>,\n\tMatt Turner <mattst88@gmail.com>,\n\tMagnus Lindholm <linmag7@gmail.com>,\n\tRussell King <linux@armlinux.org.uk>,\n\tCatalin Marinas <catalin.marinas@arm.com>,\n\tWill Deacon <will@kernel.org>,\n\tArd Biesheuvel <ardb@kernel.org>,\n\tHuacai Chen <chenhuacai@kernel.org>,\n\tWANG Xuerui <kernel@xen0n.name>,\n\tMadhavan Srinivasan <maddy@linux.ibm.com>,\n\tMichael Ellerman <mpe@ellerman.id.au>,\n\tNicholas Piggin <npiggin@gmail.com>,\n\t\"Christophe Leroy (CS GROUP)\" <chleroy@kernel.org>,\n\tPaul Walmsley <pjw@kernel.org>,\n\tPalmer Dabbelt <palmer@dabbelt.com>,\n\tAlbert Ou <aou@eecs.berkeley.edu>,\n\tAlexandre Ghiti <alex@ghiti.fr>,\n\tHeiko Carstens <hca@linux.ibm.com>,\n\tVasily Gorbik <gor@linux.ibm.com>,\n\tAlexander Gordeev <agordeev@linux.ibm.com>,\n\tChristian Borntraeger <borntraeger@linux.ibm.com>,\n\tSven Schnelle <svens@linux.ibm.com>,\n\t\"David S. Miller\" <davem@davemloft.net>,\n\tAndreas Larsson <andreas@gaisler.com>,\n\tRichard Weinberger <richard@nod.at>,\n\tAnton Ivanov <anton.ivanov@cambridgegreys.com>,\n\tJohannes Berg <johannes@sipsolutions.net>,\n\tThomas Gleixner <tglx@kernel.org>,\n\tIngo Molnar <mingo@redhat.com>,\n\tBorislav Petkov <bp@alien8.de>,\n\tDave Hansen <dave.hansen@linux.intel.com>,\n\tx86@kernel.org,\n\t\"H. Peter Anvin\" <hpa@zytor.com>,\n\tHerbert Xu <herbert@gondor.apana.org.au>,\n\tDan Williams <dan.j.williams@intel.com>,\n\tChris Mason <clm@fb.com>,\n\tDavid Sterba <dsterba@suse.com>,\n\tArnd Bergmann <arnd@arndb.de>,\n\tSong Liu <song@kernel.org>,\n\tYu Kuai <yukuai@fnnas.com>,\n\tLi Nan <linan122@huawei.com>,\n\t\"Theodore Ts'o\" <tytso@mit.edu>,\n\t\"Jason A. Donenfeld\" <Jason@zx2c4.com>,\n\tlinux-alpha@vger.kernel.org,\n\tlinux-kernel@vger.kernel.org,\n\tlinux-arm-kernel@lists.infradead.org,\n\tloongarch@lists.linux.dev,\n\tlinuxppc-dev@lists.ozlabs.org,\n\tlinux-riscv@lists.infradead.org,\n\tlinux-s390@vger.kernel.org,\n\tsparclinux@vger.kernel.org,\n\tlinux-um@lists.infradead.org,\n\tlinux-crypto@vger.kernel.org,\n\tlinux-btrfs@vger.kernel.org,\n\tlinux-arch@vger.kernel.org,\n\tlinux-raid@vger.kernel.org", "Subject": "[PATCH 23/28] xor: add a better public API", "Date": "Fri, 27 Mar 2026 07:16:55 +0100", "Message-ID": "<20260327061704.3707577-24-hch@lst.de>", "X-Mailer": "git-send-email 2.47.3", "In-Reply-To": "<20260327061704.3707577-1-hch@lst.de>", "References": "<20260327061704.3707577-1-hch@lst.de>", "Precedence": "bulk", "X-Mailing-List": "sparclinux@vger.kernel.org", "List-Id": "<sparclinux.vger.kernel.org>", "List-Subscribe": "<mailto:sparclinux+subscribe@vger.kernel.org>", "List-Unsubscribe": "<mailto:sparclinux+unsubscribe@vger.kernel.org>", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "X-SRS-Rewrite": "SMTP reverse-path rewritten from <hch@infradead.org> by\n bombadil.infradead.org. See http://www.infradead.org/rpr.html", "X-Spam-Status": "No, score=-0.2 required=5.0 tests=ARC_SIGNED,ARC_VALID,\n\tDKIM_SIGNED,DKIM_VALID,DMARC_NONE,HEADER_FROM_DIFFERENT_DOMAINS,\n\tMAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=disabled\n\tversion=4.0.1", "X-Spam-Checker-Version": "SpamAssassin 4.0.1 (2024-03-25) on gandalf.ozlabs.org" }, "content": "xor_blocks is very annoying to use, because it is limited to 4 + 1\nsources / destinations, has an odd argument order and is completely\nundocumented.\n\nLift the code that loops around it from btrfs and async_tx/async_xor into\ncommon code under the name xor_gen and properly document it.\n\nSigned-off-by: Christoph Hellwig <hch@lst.de>\n---\n lib/raid/xor/xor-core.c | 2 ++\n 1 file changed, 2 insertions(+)", "diff": "diff --git a/lib/raid/xor/xor-core.c b/lib/raid/xor/xor-core.c\nindex 07e06db32731..2e46b6b83b0a 100644\n--- a/lib/raid/xor/xor-core.c\n+++ b/lib/raid/xor/xor-core.c\n@@ -65,6 +65,8 @@ void xor_gen(void *dest, void **srcs, unsigned int src_cnt, unsigned int bytes)\n {\n \tunsigned int src_off = 0;\n \n+\tWARN_ON_ONCE(in_interrupt());\n+\tWARN_ON_ONCE(bytes == 0);\n \tWARN_ON_ONCE(bytes & 511);\n \n \twhile (src_cnt > 0) {\n", "prefixes": [ "23/28" ] }