From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 4CF99418361 for ; Tue, 25 Aug 2026 15:02:10 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787670132; cv=none; b=GJ7Yh7Y1pkW6cQuMhRuoeaNI/QAPazIdxKa+2QdnxRt8knAXhk+RAsNfUdnvDJJ/AtqPWtZV/eCVWDSsjNEaEx2SgxYprH+I8tCgGYRtsf6fkCZ2rY6mk4CMiKkkMeTyzsiq34qYD5n2ntcAEZRZjDAEVrLgKys0DU5DbYaqyuY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787670132; c=relaxed/simple; bh=z7WInaHYApO6mdUR/VH/uNoG3D4aQUlC55Aex0Q9x/s=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=JHQ5p9z1BGRf+2Jbh1gVljknm2N8it32J6ovX2W8jJOYXmsdJRlXvF3EQj6rtqaEWSNTRvsJLz/VyxpFiD7eVt6u0TH0WWFDM8Qhlly5Kj/5wcJCHH8UyXEVsK5DmPy3AiD7xP/pg/FyL8F03Ny2dogA7k+hnb78XoaCFsGS8ik= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=bMmVXl/y; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="bMmVXl/y" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 7E7E71F00A3D; Tue, 25 Aug 2026 15:02:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1787670130; bh=YI3sDaBBouFuwjjyCe99fTqUYOOS+O8MN4CY3++V52s=; h=From:To:Cc:Subject:Date; b=bMmVXl/y60V34/UCa42EZkI3k+oYZU65r5rHjDSlgCVBiB8ylHfM0y07N3CNTwPbh 0E+xuH71LhpIvv+t5TlrI5swSNAgafP1fKmzT/sqbuiC0EUP0XXgzpItyGtvOyJOGY vMcRXyfo4fKu8y0exQelUI2JOHp8U/q5bQSycGLqawUVpQlxvwEt2D9ux/TRt9NwQb NOeprfhV2BlwTM+RXb/bKFgk8B81b1i2xOL8dIswoYGFui1lodMF+xVlCoCIbeFjBn UCQ2GvQf5mP14sTor0CaoRi7ARtiY2NmR380U0cOFL4vA/J2aPHDVFKHYU+9iE2yA5 o+UF5eM7AykBA== From: Anna Schumaker To: linux-nfs@vger.kernel.org, trond.myklebust@hammerspace.com Cc: anna@kernel.org Subject: [PATCH v2 0/4] NFS: Add directory delegation support for CB_NOTIFY Date: Tue, 25 Aug 2026 11:02:05 -0400 Message-ID: <20260825150209.694646-1-anna@kernel.org> X-Mailer: git-send-email 2.55.0 Precedence: bulk X-Mailing-List: linux-nfs@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: Anna Schumaker These patches add support for the CB_NOTIFY callback operation from NFS servers. Editing directory order or placement in our caches isn't easy or practical the way things are structured now. Instead, I use CB_NOTIFY as an indication that the client needs to refresh its view of the directory. Changes in v2: * Fix signed / unsigned type mixups * Don't try to share lookup code between NOTIFY4_REMOVE and NOTIFY4_ADD * Add handling for the NOTIFY4_ADD 'na_have_old_entry' case Thoughts? Anna Anna Schumaker (4): NFS: Add an outline for the CB_NOTIFY operation NFS: Add support for CB_NOTIFY4_REMOVE_ENTRY NFS: Add support for CB_NOTIFY4_ADD_ENTRY NFS: Add support for CB_NOTIFY4_RENAME_ENTRY fs/nfs/callback.h | 51 ++++++++++++ fs/nfs/callback_proc.c | 147 ++++++++++++++++++++++++++++++++++ fs/nfs/callback_xdr.c | 175 ++++++++++++++++++++++++++++++++++++++++- fs/nfs/nfs4_fs.h | 2 + fs/nfs/nfs4xdr.c | 33 +++++++- include/linux/nfs4.h | 6 ++ 6 files changed, 409 insertions(+), 5 deletions(-) -- 2.55.0