From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from e3i421.smtp2go.com (e3i421.smtp2go.com [158.120.85.165]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id EC3C62F8E9E for ; Wed, 20 May 2026 19:09:03 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=158.120.85.165 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779304145; cv=none; b=KX1ejZ0pp8MEbo4TYrC/qxb87QcGfV7zFKP/Ildpg0cGDaoNV7KjZefwSykWa5aMadtGsxttLK7E6wxiU4bMBh5Of1R3vIa5ZWbx8eqFl+JhK8BRDGpE+jssEKtzHatyoKPWb2FfJTV6kfJdsNEPw2zIJdh1PTLxjAaV6ufE3GI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779304145; c=relaxed/simple; bh=vodvvcswZRlbDFXfFUiY4r5AdgWfA3xto6hrwuObiOo=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=CMO0NSv3jK05L6jDFx6YC61nUXFPO72sTpata2rUzjVVh+YH7WL59piAa7ffJiGadc7rKJOY9o7++M64B5y17zSWSX+cF0HPqtfrLnqBxKm5a/35FHMlihTMaKY/FblpeW+J36mTL0k55xFUn6TjfK1ExQulRtfO8yUldrFyADE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=triplefau.lt; spf=pass smtp.mailfrom=em510616.triplefau.lt; dkim=pass (2048-bit key) header.d=triplefau.lt header.i=@triplefau.lt header.b=E9vQrnFj; arc=none smtp.client-ip=158.120.85.165 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=triplefau.lt Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=em510616.triplefau.lt Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=triplefau.lt header.i=@triplefau.lt header.b="E9vQrnFj" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=triplefau.lt; i=@triplefau.lt; q=dns/txt; s=s510616; t=1779303837; h=from : subject : to : message-id : date; bh=uCNwpibAseSDNQ68UeAV3DI4drw37VIBam9jpljEa7M=; b=E9vQrnFjYq9krtzwqkrsC5hJdLErVIKwUKp2dqxr2ATSm0FPvUI+2avaxs3P9zLInj/55 OSNjdbBrTBNcLKdasvmiD9Zut+bim0TTuaQ8ZTzCbACUd4gnAyElU0XQ3snsygMJU4O19o2 XvhsFOJ6jnoZIMl7JRiSEyAdgynXmvsBBsg9wMHU97bIzD4ZWo7IGcqRJJVzI/Bp/Odjjj9 KNNWMzBokPDOaHkaoFJDfTnwtlxHRy4dKJAXpaX0p/S3NuYSSYfsvdoIqKZqiH2C5WcHv6i XvzeORmfLU55+ZIZQCehD2WufVN0j4qSlRs2+MAJjuDp24YErcorVK3krJEA== Received: from [10.12.239.196] (helo=localhost) by smtpcorp.com with esmtpsa (TLS1.3:ECDHE_SECP256R1__RSA_PSS_RSAE_SHA256__AES_256_GCM:256) (Exim 4.99.2) (envelope-from ) id 1wPmCw-AIkwcC8nAYK-KwqD; Wed, 20 May 2026 19:03:55 +0000 From: Remi Pommarel To: v9fs@lists.linux.dev Cc: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, Eric Van Hensbergen , Latchesar Ionkov , Dominique Martinet , Christian Schoenebeck , Remi Pommarel Subject: [PATCH v6 3/4] 9p: Set default negative dentry retention time for cache=loose Date: Wed, 20 May 2026 20:41:39 +0200 Message-ID: X-Mailer: git-send-email 2.52.0 In-Reply-To: References: Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Report-Abuse: Please forward a copy of this message, including all headers, to Feedback-ID: 510616m:510616apGKSTK:510616sfrOXB0SBC X-smtpcorp-track: 3rMSdeuBUhIz.yM7mZgCyZCRv.3ghuaQXIcl1 For cache=loose mounts, set the default negative dentry cache retention time to 24 hours. Signed-off-by: Remi Pommarel --- fs/9p/v9fs.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/fs/9p/v9fs.c b/fs/9p/v9fs.c index 3e758b66fefa..274c5157135d 100644 --- a/fs/9p/v9fs.c +++ b/fs/9p/v9fs.c @@ -24,6 +24,9 @@ #include "v9fs_vfs.h" #include "cache.h" +/* cache=loose default negative dentry retention time is 24hours */ +#define CACHE_LOOSE_NDENTRY_TIMEOUT_DEFAULT (24 * 60 * 60 * 1000) + static DEFINE_SPINLOCK(v9fs_sessionlist_lock); static LIST_HEAD(v9fs_sessionlist); struct kmem_cache *v9fs_inode_cache; @@ -441,6 +444,13 @@ static void v9fs_apply_options(struct v9fs_session_info *v9ses, v9ses->uid = ctx->session_opts.uid; v9ses->session_lock_timeout = ctx->session_opts.session_lock_timeout; v9ses->ndentry_timeout_ms = ctx->session_opts.ndentry_timeout_ms; + + /* If negative dentry timeout has not been overridden set default for + * cache=loose + */ + if (!(v9ses->flags & V9FS_NDENTRY_TIMEOUT_SET) && + (v9ses->cache & CACHE_LOOSE)) + v9ses->ndentry_timeout_ms = CACHE_LOOSE_NDENTRY_TIMEOUT_DEFAULT; } /** -- 2.52.0