From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 D1969224D6; Fri, 14 Nov 2025 22:45:30 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1763160330; cv=none; b=miOTjgnAOYL/ze+9eOO26XVLPnyxpnCuQcpBRtUr84eJJQWApJkzsR79DGxsW4XsQ55EIiStwBOl2c7uUW3y5f2JKE+RPSGwVYFOCi8Mv0O+l0VneosvTvHEzAUrtmG1PeML+n8Y8M4SV9IFsl9UU19uuzayS9whjQblplCuYJk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1763160330; c=relaxed/simple; bh=B5lYKr9+wiCQx3OHEreiZNRmynpqI86x2A1RYVAnPKE=; h=From:Subject:Date:Message-Id:MIME-Version:Content-Type:To:Cc; b=jqSxziPd5FV75dFPpiFKcxydy648jFfXnLD4+nQWqaVs4TDpfqkt/rq2JkP+RKCme7eK393qFuZwKsp3MRbZ90Rta/1MHfbBhbxCHzWSZoiyvVrpPVEErPk9bBvqlRxHkZkAD6Zxb+/7gNbKZUbweQXx8jgelu1P0B3c3AxZdx0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=RsAWWxkp; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="RsAWWxkp" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 07834C116D0; Fri, 14 Nov 2025 22:45:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1763160330; bh=B5lYKr9+wiCQx3OHEreiZNRmynpqI86x2A1RYVAnPKE=; h=From:Subject:Date:To:Cc:From; b=RsAWWxkpZS+klqdmXVrqqpIkfD9ci3G2sgT4bWsL4z/uEgg9BqD2SzqQFLquNbZSJ qL4NzKHytNz7mPPCNKDyA8Vf6TCnjfcDN5tfPCqTvji7yOwRy6uKgxjv7yePr/KgEH NVc4yReFdENVHdtMX1AKd+GXDBaz0rfOSwkK0DmvcrzyUYNOXqJr0yBMlZU7wSfnSy skZsfrosbaJCRn8gh+Ynnq6BG7WV05Wwr5X6pBGYnR7EP75CHf4Txj1dDJKOD58BJb hEXEIa1UoHjrUsAsFAz7KLNOUyvO2n9OCrs3Mg6QRN2UssXCrmxbI/I7ZrZg2O6vaI VtbKBAjqDG3Dg== From: Christian Brauner Subject: [PATCH 0/5] ovl: convert copyup credential override to cred guard Date: Fri, 14 Nov 2025 23:45:21 +0100 Message-Id: <20251114-work-ovl-cred-guard-copyup-v1-0-ea3fb15cf427@kernel.org> Precedence: bulk X-Mailing-List: linux-fsdevel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-B4-Tracking: v=1; b=H4sIAAGxF2kC/yXMSw6CMBAA0KuQWTsN5WOMVzEuSjtAo2mbaUAN4 e5Mcfk2b4NM7CnDvdqAafXZxyDQlwrsbMJE6J0YmrrptdYdfiK/MK5vtEwOp8WwQxvTb0lIuqX WXanubyNIkJhG/z3zx1M8mEw4sAl2LmWhKp2STpVOnZ36d7DvB11BXHieAAAA X-Change-ID: 20251114-work-ovl-cred-guard-copyup-e13e3d6e058f To: Miklos Szeredi , Amir Goldstein Cc: Linus Torvalds , linux-unionfs@vger.kernel.org, linux-fsdevel@vger.kernel.org, Christian Brauner X-Mailer: b4 0.15-dev-a6db3 X-Developer-Signature: v=1; a=openpgp-sha256; l=966; i=brauner@kernel.org; h=from:subject:message-id; bh=B5lYKr9+wiCQx3OHEreiZNRmynpqI86x2A1RYVAnPKE=; b=kA0DAAoWkcYbwGV43KIByyZiAGkXsQigadN24cDLqT0l5lAaty/RmX+DyYgqJUbQkk8X6mODX Yh1BAAWCgAdFiEEQIc0Vx6nDHizMmkokcYbwGV43KIFAmkXsQgACgkQkcYbwGV43KKGmgEA3MuR 0rsJUx/UWND1mdyh9X3//mMPNmeyZHA+E9JxFTMA/3lO641WDcnMSNaIh2TPn0dRBLyWoD8RWbo QcPos4EYG X-Developer-Key: i=brauner@kernel.org; a=openpgp; fpr=4880B8C9BD0E5106FC070F4F7B3C391EFEA93624 Hey, This is on top of the other overlayfs cleanup guard work I already sent out. This simplifies the copyup specific credential override. The current code is centered around a helper struct ovl_cu_creds and is a bit convoluted. We can simplify this by using a cred guard. This will also allow us to remove the helper struct and associated functions. Signed-off-by: Christian Brauner --- Christian Brauner (5): ovl: add copy up credential guard ovl: port ovl_copy_up_workdir() to cred guard ovl: mark *_cu_creds() as unused temporarily ovl: port ovl_copy_up_tmpfile() to cred guard ovl: remove struct ovl_cu_creds and associated functions fs/overlayfs/copy_up.c | 64 ++++++++++++++++++++++++-------------------------- 1 file changed, 31 insertions(+), 33 deletions(-) --- base-commit: bc452b620b01ca11d050b4219ee8a894e55a633b change-id: 20251114-work-ovl-cred-guard-copyup-e13e3d6e058f