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GET /api/1.1/patches/2228977/?format=api
{ "id": 2228977, "url": "http://patchwork.ozlabs.org/api/1.1/patches/2228977/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-cifs-client/patch/20260427152953.180038-4-dhowells@redhat.com/", "project": { "id": 12, "url": "http://patchwork.ozlabs.org/api/1.1/projects/12/?format=api", "name": "Linux CIFS Client", "link_name": "linux-cifs-client", "list_id": "linux-cifs.vger.kernel.org", "list_email": "linux-cifs@vger.kernel.org", "web_url": "", "scm_url": "", "webscm_url": "" }, "msgid": "<20260427152953.180038-4-dhowells@redhat.com>", "date": "2026-04-27T15:29:30", "name": "[v4,03/22] netfs: Fix missing locking around retry adding new subreqs", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "816b8cc28df3f31636f25023a7703e3f424fce10", "submitter": { "id": 59, "url": "http://patchwork.ozlabs.org/api/1.1/people/59/?format=api", "name": "David Howells", "email": "dhowells@redhat.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/linux-cifs-client/patch/20260427152953.180038-4-dhowells@redhat.com/mbox/", "series": [ { "id": 501677, "url": "http://patchwork.ozlabs.org/api/1.1/series/501677/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-cifs-client/list/?series=501677", "date": "2026-04-27T15:29:27", "name": "netfs: Miscellaneous fixes", "version": 4, "mbox": "http://patchwork.ozlabs.org/series/501677/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2228977/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2228977/checks/", "tags": {}, "headers": { "Return-Path": "\n <linux-cifs+bounces-11146-incoming=patchwork.ozlabs.org@vger.kernel.org>", "X-Original-To": [ "incoming@patchwork.ozlabs.org", "linux-cifs@vger.kernel.org" ], "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (1024-bit key;\n unprotected) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256\n header.s=mimecast20190719 header.b=AaTzxlzD;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org\n (client-ip=172.234.253.10; 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a=rsa-sha256; c=relaxed/relaxed; d=redhat.com;\n\ts=mimecast20190719; t=1777303822;\n\th=from:from:reply-to:subject:subject:date:date:message-id:message-id:\n\t to:to:cc:cc:mime-version:mime-version:\n\t content-transfer-encoding:content-transfer-encoding:\n\t in-reply-to:in-reply-to:references:references;\n\tbh=REMGICrXXI7qiSN2rIwTeEeIpWS2D3QtA/yikvDYdpo=;\n\tb=AaTzxlzDPkvHT95gMbQFUIuiGGL5qFd40dC1EWJyK4823Ram/azUysmSFbGfTkwIHINfC3\n\tHQ1UWpZma4QOlXgJbA+WUvFVglMtKqxCCerOTacVJpncJ+qsXhysQtEhYDnvibDGNPfj8v\n\tK7AC2vFeCPK8eHRsR25rEto6vqa9esE=", "X-MC-Unique": "o_86Fju7MJyIRarjiHxZSQ-1", "X-Mimecast-MFC-AGG-ID": "o_86Fju7MJyIRarjiHxZSQ_1777303816", "From": "David Howells <dhowells@redhat.com>", "To": "Christian Brauner <christian@brauner.io>", "Cc": "David Howells <dhowells@redhat.com>,\n\tPaulo Alcantara <pc@manguebit.org>,\n\tnetfs@lists.linux.dev,\n\tlinux-afs@lists.infradead.org,\n\tlinux-cifs@vger.kernel.org,\n\tceph-devel@vger.kernel.org,\n\tlinux-fsdevel@vger.kernel.org,\n\tlinux-kernel@vger.kernel.org", "Subject": "[PATCH v4 03/22] netfs: Fix missing locking around retry adding new\n subreqs", "Date": "Mon, 27 Apr 2026 16:29:30 +0100", "Message-ID": "<20260427152953.180038-4-dhowells@redhat.com>", "In-Reply-To": "<20260427152953.180038-1-dhowells@redhat.com>", "References": "<20260427152953.180038-1-dhowells@redhat.com>", "Precedence": "bulk", "X-Mailing-List": "linux-cifs@vger.kernel.org", "List-Id": "<linux-cifs.vger.kernel.org>", "List-Subscribe": "<mailto:linux-cifs+subscribe@vger.kernel.org>", "List-Unsubscribe": "<mailto:linux-cifs+unsubscribe@vger.kernel.org>", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "X-Scanned-By": "MIMEDefang 3.0 on 10.30.177.12" }, "content": "Fix netfs_retry_read_subrequests() and netfs_retry_write_stream() to take\nthe appropriate lock when adding extra subrequests into\nstream->subrequests.\n\nFixes: e2d46f2ec332 (\"netfs: Change the read result collector to only use one work item\")\nFixes: 288ace2f57c9 (\"netfs: New writeback implementation\")\nCloses: https://sashiko.dev/#/patchset/20260425125426.3855807-1-dhowells%40redhat.com\nSigned-off-by: David Howells <dhowells@redhat.com>\ncc: Paulo Alcantara <pc@manguebit.org>\ncc: netfs@lists.linux.dev\ncc: linux-fsdevel@vger.kernel.org\n---\n fs/netfs/read_retry.c | 2 ++\n fs/netfs/write_retry.c | 2 ++\n 2 files changed, 4 insertions(+)", "diff": "diff --git a/fs/netfs/read_retry.c b/fs/netfs/read_retry.c\nindex cca9ac43c077..b34561e257f0 100644\n--- a/fs/netfs/read_retry.c\n+++ b/fs/netfs/read_retry.c\n@@ -203,7 +203,9 @@ static void netfs_retry_read_subrequests(struct netfs_io_request *rreq)\n \t\t\t\t\t refcount_read(&subreq->ref),\n \t\t\t\t\t netfs_sreq_trace_new);\n \n+\t\t\tspin_lock(&rreq->lock);\n \t\t\tlist_add(&subreq->rreq_link, &to->rreq_link);\n+\t\t\tspin_unlock(&rreq->lock);\n \t\t\tto = list_next_entry(to, rreq_link);\n \t\t\ttrace_netfs_sreq(subreq, netfs_sreq_trace_retry);\n \ndiff --git a/fs/netfs/write_retry.c b/fs/netfs/write_retry.c\nindex 29489a23a220..db0f23708b2d 100644\n--- a/fs/netfs/write_retry.c\n+++ b/fs/netfs/write_retry.c\n@@ -153,7 +153,9 @@ static void netfs_retry_write_stream(struct netfs_io_request *wreq,\n \t\t\t\t\t netfs_sreq_trace_new);\n \t\t\ttrace_netfs_sreq(subreq, netfs_sreq_trace_split);\n \n+\t\t\tspin_lock(&wreq->lock);\n \t\t\tlist_add(&subreq->rreq_link, &to->rreq_link);\n+\t\t\tspin_unlock(&wreq->lock);\n \t\t\tto = list_next_entry(to, rreq_link);\n \t\t\ttrace_netfs_sreq(subreq, netfs_sreq_trace_retry);\n \n", "prefixes": [ "v4", "03/22" ] }