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GET /api/1.1/patches/2229714/?format=api
HTTP 200 OK
Allow: GET, PUT, PATCH, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "id": 2229714,
    "url": "http://patchwork.ozlabs.org/api/1.1/patches/2229714/?format=api",
    "web_url": "http://patchwork.ozlabs.org/project/linux-cifs-client/patch/20260428160804.281745-14-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": "<20260428160804.281745-14-sprasad@microsoft.com>",
    "date": "2026-04-28T16:07:59",
    "name": "[v3,14/19] cifs: option to set unlimited number of cached dirs",
    "commit_ref": null,
    "pull_url": null,
    "state": "new",
    "archived": false,
    "hash": "021301991d8a9da154e4716779cc497ee017d143",
    "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/20260428160804.281745-14-sprasad@microsoft.com/mbox/",
    "series": [
        {
            "id": 501896,
            "url": "http://patchwork.ozlabs.org/api/1.1/series/501896/?format=api",
            "web_url": "http://patchwork.ozlabs.org/project/linux-cifs-client/list/?series=501896",
            "date": "2026-04-28T16:07:57",
            "name": "[v3,01/19] cifs: change_conf needs to be called for session setup",
            "version": 3,
            "mbox": "http://patchwork.ozlabs.org/series/501896/mbox/"
        }
    ],
    "comments": "http://patchwork.ozlabs.org/api/patches/2229714/comments/",
    "check": "pending",
    "checks": "http://patchwork.ozlabs.org/api/patches/2229714/checks/",
    "tags": {},
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        "From": "nspmangalore@gmail.com",
        "X-Google-Original-From": "sprasad@microsoft.com",
        "To": "linux-cifs@vger.kernel.org,\n\tsmfrench@gmail.com,\n\tpc@manguebit.org,\n\tbharathsm@microsoft.com,\n\tdhowells@redhat.com,\n\thenrique.carvalho@suse.com,\n\tematsumiya@suse.de",
        "Cc": "Shyam Prasad N <sprasad@microsoft.com>",
        "Subject": "[PATCH v3 14/19] cifs: option to set unlimited number of cached dirs",
        "Date": "Tue, 28 Apr 2026 21:37:59 +0530",
        "Message-ID": "<20260428160804.281745-14-sprasad@microsoft.com>",
        "X-Mailer": "git-send-email 2.43.0",
        "In-Reply-To": "<20260428160804.281745-1-sprasad@microsoft.com>",
        "References": "<20260428160804.281745-1-sprasad@microsoft.com>",
        "Precedence": "bulk",
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        "MIME-Version": "1.0",
        "Content-Transfer-Encoding": "8bit"
    },
    "content": "From: Shyam Prasad N <sprasad@microsoft.com>\n\nToday we can control the number of cached dirs on the system using\nthe mount option max_cached_dirs. The default value is 16.\n\nThis change allows setting this option to a special value of 0,\nwhich means unlimited number of cached dirs. Shrinker can still\nevict the cached dirs.\n\nSigned-off-by: Shyam Prasad N <sprasad@microsoft.com>\n---\n fs/smb/client/cached_dir.c |  2 +-\n fs/smb/client/fs_context.c | 10 +++++-----\n 2 files changed, 6 insertions(+), 6 deletions(-)",
    "diff": "diff --git a/fs/smb/client/cached_dir.c b/fs/smb/client/cached_dir.c\nindex 7cfbe50db66f5..863b8d666ea95 100644\n--- a/fs/smb/client/cached_dir.c\n+++ b/fs/smb/client/cached_dir.c\n@@ -1256,7 +1256,7 @@ static struct cached_fid *find_or_create_cached_dir(struct cached_fids *cfids,\n \tif (lookup_only) {\n \t\treturn NULL;\n \t}\n-\tif (cfids->num_entries >= max_cached_dirs) {\n+\tif (max_cached_dirs && cfids->num_entries >= max_cached_dirs) {\n \t\treturn NULL;\n \t}\n \tcfid = init_cached_dir(path);\ndiff --git a/fs/smb/client/fs_context.c b/fs/smb/client/fs_context.c\nindex a46764c247107..3eff94df70d45 100644\n--- a/fs/smb/client/fs_context.c\n+++ b/fs/smb/client/fs_context.c\n@@ -1493,12 +1493,12 @@ static int smb3_fs_context_parse_param(struct fs_context *fc,\n \t\tctx->max_channels = result.uint_32;\n \t\tbreak;\n \tcase Opt_max_cached_dirs:\n-\t\tif (result.uint_32 < 1) {\n-\t\t\tcifs_errorf(fc, \"%s: Invalid max_cached_dirs, needs to be 1 or more\\n\",\n-\t\t\t\t    __func__);\n-\t\t\tgoto cifs_parse_mount_err;\n+\t\tif (result.uint_32 > 0) {\n+\t\t\tctx->max_cached_dirs = result.uint_32;\n+\t\t} else {\n+\t\t\t/* 0 means unlimited */\n+\t\t\tctx->max_cached_dirs = 0;\n \t\t}\n-\t\tctx->max_cached_dirs = result.uint_32;\n \t\tbreak;\n \tcase Opt_handletimeout:\n \t\tctx->handle_timeout = result.uint_32;\n",
    "prefixes": [
        "v3",
        "14/19"
    ]
}