{"id":2229714,"url":"http://patchwork.ozlabs.org/api/1.1/patches/2229714/?format=json","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=json","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=json","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=json","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":{},"headers":{"Return-Path":"\n ","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=Yor6jWkc;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org\n (client-ip=2600:3c09:e001:a7::12fc:5321; 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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 \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"]}