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GET /api/1.1/patches/2230325/?format=api
{ "id": 2230325, "url": "http://patchwork.ozlabs.org/api/1.1/patches/2230325/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-ext4/patch/177747215045.4109882.5372076002580949348.stgit@frogsfrogsfrogs/", "project": { "id": 8, "url": "http://patchwork.ozlabs.org/api/1.1/projects/8/?format=api", "name": "Linux ext4 filesystem development", "link_name": "linux-ext4", "list_id": "linux-ext4.vger.kernel.org", "list_email": "linux-ext4@vger.kernel.org", "web_url": null, "scm_url": null, "webscm_url": null }, "msgid": "<177747215045.4109882.5372076002580949348.stgit@frogsfrogsfrogs>", "date": "2026-04-29T14:57:50", "name": "[1/3] fuse4fs: configure iomap when running as a service", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "b79d3a5f0bca937b7f7b44e70f624c32ac3d8006", "submitter": { "id": 77032, "url": "http://patchwork.ozlabs.org/api/1.1/people/77032/?format=api", "name": "Darrick J. Wong", "email": "djwong@kernel.org" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/linux-ext4/patch/177747215045.4109882.5372076002580949348.stgit@frogsfrogsfrogs/mbox/", "series": [ { "id": 502089, "url": "http://patchwork.ozlabs.org/api/1.1/series/502089/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-ext4/list/?series=502089", "date": "2026-04-29T14:58:06", "name": "[1/3] fuse4fs: configure iomap when running as a service", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/502089/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2230325/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2230325/checks/", "tags": {}, "headers": { "Return-Path": "\n <SRS0=rdlJ=C4=vger.kernel.org=linux-ext4+bounces-16209-patchwork-incoming=ozlabs.org@ozlabs.org>", "X-Original-To": [ "incoming@patchwork.ozlabs.org", "linux-ext4@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 unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256\n header.s=k20201202 header.b=BiUlI2jO;\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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a=rsa-sha256; d=subspace.kernel.org;\n\ts=arc-20240116; t=1777474671; c=relaxed/simple;\n\tbh=+1qcRrkwPkKYIhYfSSdw6RXfN4OfMOmlIcoWZLsn9cc=;\n\th=Date:Subject:From:To:Cc:Message-ID:In-Reply-To:References:\n\t MIME-Version:Content-Type;\n b=dqgfaNhKS3351wniOzcTJoWxu2XyQ2/79ZjMxr1ZmUa2c6fjFQUI7De65R89ZU2XFjIuXp6iHhblrPErIGr26FIgP2qKaChEFcbJBUJuQLfZ6T3xaZjD33gs/7jiyggB2sduAnCY+9Bo7uR08M3ZsO3OWyF4VD1ZbHEc669YdhU=" ], "ARC-Authentication-Results": [ "i=2; gandalf.ozlabs.org;\n dmarc=pass (p=quarantine dis=none) header.from=kernel.org;\n dkim=pass (2048-bit key;\n unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256\n header.s=k20201202 header.b=BiUlI2jO; dkim-atps=neutral;\n spf=pass (client-ip=2600:3c0a:e001:db::12fc:5321; helo=sea.lore.kernel.org;\n envelope-from=linux-ext4+bounces-16209-patchwork-incoming=ozlabs.org@vger.kernel.org;\n receiver=ozlabs.org) smtp.mailfrom=vger.kernel.org", "i=1; smtp.subspace.kernel.org;\n dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org\n header.b=BiUlI2jO; arc=none smtp.client-ip=10.30.226.201" ], "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org;\n\ts=k20201202; t=1777474671;\n\tbh=+1qcRrkwPkKYIhYfSSdw6RXfN4OfMOmlIcoWZLsn9cc=;\n\th=Date:Subject:From:To:Cc:In-Reply-To:References:From;\n\tb=BiUlI2jOAcIng1GDMvjmueoAWOLRyUi0on22X5CfMmeGZ12bfdL/Ye9vmLrl7wxaw\n\t 5qdsPLk8RCKcg+tRT3H5WIJV4U26LxLDxpsWlj08auJhGTGZ1l4ya196RUoA3Yoxvd\n\t JH93WIvc0vDJVDu+/YLuxFP93NMkcX6IoTr/aGMdckMwzD3wMf20RA6EkbfKprYyzI\n\t SrwrYsjHGs3O0DL3yT5330Bk0/xLU1WwpRx5b98dyjs8Ug2XEZYGf2Rbid57iGQqSL\n\t ew8otYYzHY18VPwut5qWGXWfy8UHfleo4hdhZ+zQG67p8gukkZI8GCkp4dqfjhAS7I\n\t x+KfXpxUrtqDA==", "Date": "Wed, 29 Apr 2026 07:57:50 -0700", "Subject": "[PATCH 1/3] fuse4fs: configure iomap when running as a service", "From": "\"Darrick J. Wong\" <djwong@kernel.org>", "To": "tytso@mit.edu", "Cc": "bernd@bsbernd.com, miklos@szeredi.hu, linux-ext4@vger.kernel.org,\n neal@gompa.dev, linux-fsdevel@vger.kernel.org, fuse-devel@lists.linux.dev,\n joannelkoong@gmail.com", "Message-ID": "<177747215045.4109882.5372076002580949348.stgit@frogsfrogsfrogs>", "In-Reply-To": "<177747215017.4109882.630706253054166885.stgit@frogsfrogsfrogs>", "References": "<177747215017.4109882.630706253054166885.stgit@frogsfrogsfrogs>", "Precedence": "bulk", "X-Mailing-List": "linux-ext4@vger.kernel.org", "List-Id": "<linux-ext4.vger.kernel.org>", "List-Subscribe": "<mailto:linux-ext4+subscribe@vger.kernel.org>", "List-Unsubscribe": "<mailto:linux-ext4+unsubscribe@vger.kernel.org>", "MIME-Version": "1.0", "Content-Type": "text/plain; charset=\"utf-8\"", "Content-Transfer-Encoding": "7bit", "X-Spam-Status": "No, score=-1.2 required=5.0 tests=ARC_SIGNED,ARC_VALID,\n\tDKIMWL_WL_HIGH,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DMARC_PASS,\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": "From: Darrick J. Wong <djwong@kernel.org>\n\nWe have to ask the mount helper to enable iomap for us on the fuse\nconnection, so do that before mounting.\n\nSigned-off-by: \"Darrick J. Wong\" <djwong@kernel.org>\n---\n fuse4fs/fuse4fs.c | 45 +++++++++++++++++++++++++++++++++++++++++++++\n 1 file changed, 45 insertions(+)", "diff": "diff --git a/fuse4fs/fuse4fs.c b/fuse4fs/fuse4fs.c\nindex 46f81e2066b044..d7de2e94a7e536 100644\n--- a/fuse4fs/fuse4fs.c\n+++ b/fuse4fs/fuse4fs.c\n@@ -334,8 +334,14 @@ static inline bool fuse4fs_is_service(const struct fuse4fs *ff)\n {\n \treturn fuse_service_accepted(ff->service);\n }\n+\n+static int fuse4fs_service_discover_iomap(struct fuse4fs *ff)\n+{\n+\treturn fuse_service_discover_iomap(ff->service);\n+}\n #else\n # define fuse4fs_is_service(...)\t\t(false)\n+# define fuse4fs_service_discover_iomap(...)\t(0)\n #endif\n \n #define FUSE4FS_CHECK_HANDLE(req, fh) \\\n@@ -935,6 +941,11 @@ static inline void fuse4fs_discover_iomap(struct fuse4fs *ff)\n \tif (ff->iomap_want == FT_DISABLE)\n \t\treturn;\n \n+\tif (fuse4fs_is_service(ff)) {\n+\t\tff->iomap_cap = fuse4fs_service_discover_iomap(ff);\n+\t\treturn;\n+\t}\n+\n \tff->iomap_cap = fuse_lowlevel_discover_iomap(-1);\n }\n \n@@ -1579,6 +1590,30 @@ static errcode_t fuse4fs_service_openfs(struct fuse4fs *ff, char *options,\n # define fuse4fs_service_openfs(...)\t\t(EOPNOTSUPP)\n #endif\n \n+#if defined(HAVE_FUSE4FS_SERVICE) && defined(HAVE_FUSE_IOMAP)\n+static int fuse4fs_service_configure_iomap(struct fuse4fs *ff)\n+{\n+\tint error = 0;\n+\tint ret;\n+\n+\tret = fuse_service_configure_iomap(ff->service,\n+\t\t\t\t\t ff->iomap_want == FT_ENABLE,\n+\t\t\t\t\t &error);\n+\tif (ret)\n+\t\treturn -1;\n+\n+\tif (error) {\n+\t\terr_printf(ff, \"%s: %s.\\n\", _(\"enabling iomap\"),\n+\t\t\t strerror(error));\n+\t\treturn -1;\n+\t}\n+\n+\treturn 0;\n+}\n+#else\n+# define fuse4fs_service_configure_iomap(...)\t(EOPNOTSUPP)\n+#endif\n+\n static errcode_t fuse4fs_acquire_lockfile(struct fuse4fs *ff)\n {\n \tchar *resolved;\n@@ -8373,6 +8408,16 @@ int main(int argc, char *argv[])\n \t\t\tret = 2;\n \t\t\tgoto out;\n \t\t}\n+\n+#ifdef HAVE_FUSE_IOMAP\n+\t\tif (fctx.iomap_want != FT_DISABLE) {\n+\t\t\tret = fuse4fs_service_configure_iomap(&fctx);\n+\t\t\tif (ret) {\n+\t\t\t\tret = 2;\n+\t\t\t\tgoto out;\n+\t\t\t}\n+\t\t}\n+#endif\n \t}\n \n \ttry_adjust_oom_score(&fctx);\n", "prefixes": [ "1/3" ] }