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GET /api/1.1/patches/2223129/?format=api
{ "id": 2223129, "url": "http://patchwork.ozlabs.org/api/1.1/patches/2223129/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-cifs-client/patch/20260414135918.279802-1-sprasad@microsoft.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": "<20260414135918.279802-1-sprasad@microsoft.com>", "date": "2026-04-14T13:59:12", "name": "[1/7] cifs: change_conf needs to be called for session setup", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "b911b2ac2561c44f9fee7b6a4a0d24ec382278b0", "submitter": { "id": 79368, "url": "http://patchwork.ozlabs.org/api/1.1/people/79368/?format=api", "name": "Shyam Prasad N", "email": "nspmangalore@gmail.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/linux-cifs-client/patch/20260414135918.279802-1-sprasad@microsoft.com/mbox/", "series": [ { "id": 499852, "url": "http://patchwork.ozlabs.org/api/1.1/series/499852/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-cifs-client/list/?series=499852", "date": "2026-04-14T13:59:12", "name": "[1/7] cifs: change_conf needs to be called for session setup", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/499852/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2223129/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2223129/checks/", "tags": {}, "headers": { "Return-Path": "\n <linux-cifs+bounces-10803-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 (2048-bit key;\n unprotected) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256\n header.s=20251104 header.b=M2HG51rP;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org\n (client-ip=172.105.105.114; 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This can be a problem for mchan as the immediate next call\nafter session setup could be due to an I/O that is made on the\nmount point. For single channel, this is not a problem as\nthere will be several calls after setting up session.\n\nThis change enforces calling change_conf for the last session setup\nresponse, so that echoes and oplocks are not disabled before the\nfirst request to the server. So if that first request is an open,\nit does not need to disable requesting leases.\n\nCc: <stable@vger.kernel.org>\nSigned-off-by: Shyam Prasad N <sprasad@microsoft.com>\n---\n fs/smb/client/smb2ops.c | 9 +++++++++\n 1 file changed, 9 insertions(+)", "diff": "diff --git a/fs/smb/client/smb2ops.c b/fs/smb/client/smb2ops.c\nindex 509fcea28a429..3625030d1912f 100644\n--- a/fs/smb/client/smb2ops.c\n+++ b/fs/smb/client/smb2ops.c\n@@ -111,10 +111,19 @@ smb2_add_credits(struct TCP_Server_Info *server,\n \t\t\t\t cifs_trace_rw_credits_zero_in_flight);\n \t}\n \tserver->in_flight--;\n+\n+\t/*\n+\t * Rebalance credits when an op drains in_flight. For session setup,\n+\t * do this only when the server actually granted positive credits (>2) so a\n+\t * newly established secondary channel can reserve echo/oplock credits.\n+\t */\n \tif (server->in_flight == 0 &&\n \t ((optype & CIFS_OP_MASK) != CIFS_NEG_OP) &&\n \t ((optype & CIFS_OP_MASK) != CIFS_SESS_OP))\n \t\trc = change_conf(server);\n+\telse if (server->in_flight == 0 &&\n+\t\t ((optype & CIFS_OP_MASK) == CIFS_SESS_OP) && add > 2)\n+\t\trc = change_conf(server);\n \t/*\n \t * Sometimes server returns 0 credits on oplock break ack - we need to\n \t * rebalance credits in this case.\n", "prefixes": [ "1/7" ] }