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 3D5743C1969; Mon, 6 Jul 2026 18:48:50 +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=1783363739; cv=none; b=fIbtxxKEGZQfIHtf5MsG/CdXe1Nt+uNBrrQFvfT++eCYv+AQ7U33teVTeHVs0G2DipCXEyX4hnpYo11JA9NIu/mox3apyKuFYlyXN7a6r1X4sY/gI+OhW4AMDRHt3DpUKJuAaAXuItMmOWi+BJUWxIwPbAgkhOOb8KbPGiZoSSQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783363739; c=relaxed/simple; bh=EbmH9tg3zQH2QoUK5PF3nXiqZaX54+lNf85wlX8nnjA=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version:Content-Type; b=urLYSYo5uu8TRycFWk+zwZi1HQU94ppp7YF37+pg2b1A7Gj+hcbpeOhWRUvWGLpsARR3dQO427Ga8bVORb3BsrZXSva2fApRUt5G8DX5RcIb8Lwz0Rtjo1cMxGwxD3C+l1XYVbnXl0uYu40tuhYvx27GgKMW2TGrT4+oLqrXu+Y= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=gOyxpF9G; 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="gOyxpF9G" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2F4471F00ACF; Mon, 6 Jul 2026 18:48:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1783363720; bh=hrTzZ3gW05REpkBsODmF16wG05c5GXQy0wCBYXLXwww=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=gOyxpF9GgYxs6TTGTPEqDYd3zWNG/IwW4H07fRVAulPNIFW5BEa1haN/eXh9ey1Tn UNiZUPqiBR0dnyB2h0891q4D31edCYuqFELjbmUnjdW403ZpMOPnqP6jFCl+sW+0Jj Zrm1+QAuvIPhlMfEyz/kKHbSo0wV2UmKuc3CR8EefsqastNnABMJfaFPZFTIhPBNpW Fa8LpdfNKeDW1+CPd60v1WKZG5FQGrNxR+D0OV483d284KHFoJBOSG5ceyC+bnQteJ NEnTKjmOzLJ4SovJUYQ2TESx6Hboqh62qqB3TKqhyHctb8ItHunS3EIihz3h39tOU5 ewsN95Mb2I4hQ== Received: by pali.im (Postfix) id 340D11037; Mon, 6 Jul 2026 20:48:35 +0200 (CEST) From: =?UTF-8?q?Pali=20Roh=C3=A1r?= To: Steve French , Paulo Alcantara , Ronnie Sahlberg Cc: linux-cifs@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH RESEND 07/11] cifs: Check if server supports EAs before trying to set it for WSL Date: Mon, 6 Jul 2026 20:48:15 +0200 Message-Id: <20260706184819.22124-8-pali@kernel.org> X-Mailer: git-send-email 2.39.5 In-Reply-To: <20260706184819.22124-1-pali@kernel.org> References: <20260706184819.22124-1-pali@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit WSL special files store information into EAs. When EAs are not supported on the server filesystem then fast fail in mknod_wsl() function. Signed-off-by: Pali Rohár --- fs/smb/client/reparse.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/fs/smb/client/reparse.c b/fs/smb/client/reparse.c index 99e93b56374f..e2ea59a17c9c 100644 --- a/fs/smb/client/reparse.c +++ b/fs/smb/client/reparse.c @@ -668,6 +668,13 @@ static int mknod_wsl(unsigned int xid, struct inode *inode, struct kvec reparse_iov, xattr_iov; int rc; + /* + * WSL special files store information into EAs. When EAs are not + * supported on the server filesystem then fast fail. + */ + if (!(le32_to_cpu(tcon->fsAttrInfo.Attributes) & FILE_SUPPORTS_EXTENDED_ATTRIBUTES)) + return -EOPNOTSUPP; + rc = wsl_set_reparse_buf(&buf, mode, symname, cifs_sb, &reparse_iov); if (rc) return rc; -- 2.20.1