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GET /api/patches/2224986/?format=api
{ "id": 2224986, "url": "http://patchwork.ozlabs.org/api/patches/2224986/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-ext4/patch/20260420061630.62077-1-changfengnan@bytedance.com/", "project": { "id": 8, "url": "http://patchwork.ozlabs.org/api/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, "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20260420061630.62077-1-changfengnan@bytedance.com>", "list_archive_url": null, "date": "2026-04-20T06:16:30", "name": "[v2] iomap: avoid memset iomap when iter is done", "commit_ref": null, "pull_url": null, "state": "not-applicable", "archived": false, "hash": "2bf8903bbd57fd113d6143953ddcfa4972e621c9", "submitter": { "id": 80323, "url": "http://patchwork.ozlabs.org/api/people/80323/?format=api", "name": "Fengnan Chang", "email": "fengnanchang@gmail.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/linux-ext4/patch/20260420061630.62077-1-changfengnan@bytedance.com/mbox/", "series": [ { "id": 500558, "url": "http://patchwork.ozlabs.org/api/series/500558/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-ext4/list/?series=500558", "date": "2026-04-20T06:16:30", "name": "[v2] iomap: avoid memset iomap when iter is done", "version": 2, "mbox": "http://patchwork.ozlabs.org/series/500558/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2224986/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2224986/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "\n <SRS0=p0tD=CT=vger.kernel.org=linux-ext4+bounces-15909-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=gmail.com header.i=@gmail.com header.a=rsa-sha256\n header.s=20251104 header.b=LnZ4j5QA;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=ozlabs.org\n (client-ip=150.107.74.76; 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Therefore, split the cleanup logic: always release the\nfolio_batch, but skip the memset() when ret <= 0.\n\nSigned-off-by: Fengnan Chang <changfengnan@bytedance.com>\n---\n fs/iomap/iter.c | 12 ++++++------\n 1 file changed, 6 insertions(+), 6 deletions(-)", "diff": "diff --git a/fs/iomap/iter.c b/fs/iomap/iter.c\nindex c04796f6e57f..e4a29829591a 100644\n--- a/fs/iomap/iter.c\n+++ b/fs/iomap/iter.c\n@@ -6,17 +6,13 @@\n #include <linux/iomap.h>\n #include \"trace.h\"\n \n-static inline void iomap_iter_reset_iomap(struct iomap_iter *iter)\n+static inline void iomap_iter_clean_fbatch(struct iomap_iter *iter)\n {\n \tif (iter->iomap.flags & IOMAP_F_FOLIO_BATCH) {\n \t\tfolio_batch_release(iter->fbatch);\n \t\tfolio_batch_reinit(iter->fbatch);\n \t\titer->iomap.flags &= ~IOMAP_F_FOLIO_BATCH;\n \t}\n-\n-\titer->status = 0;\n-\tmemset(&iter->iomap, 0, sizeof(iter->iomap));\n-\tmemset(&iter->srcmap, 0, sizeof(iter->srcmap));\n }\n \n /* Advance the current iterator position and decrement the remaining length */\n@@ -102,10 +98,14 @@ int iomap_iter(struct iomap_iter *iter, const struct iomap_ops *ops)\n \t\tret = 0;\n \telse\n \t\tret = 1;\n-\tiomap_iter_reset_iomap(iter);\n+\tiomap_iter_clean_fbatch(iter);\n+\titer->status = 0;\n \tif (ret <= 0)\n \t\treturn ret;\n \n+\tmemset(&iter->iomap, 0, sizeof(iter->iomap));\n+\tmemset(&iter->srcmap, 0, sizeof(iter->srcmap));\n+\n begin:\n \tret = ops->iomap_begin(iter->inode, iter->pos, iter->len, iter->flags,\n \t\t\t &iter->iomap, &iter->srcmap);\n", "prefixes": [ "v2" ] }