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From: "J. R. Okajima" <hooanon05g@gmail.com>
To: Stefan Berger <stefanb@linux.vnet.ibm.com>
Cc: amir73il@gmail.com, linux-integrity@vger.kernel.org,
	linux-kernel@vger.kernel.org, linux-unionfs@vger.kernel.org,
	miklos@szeredi.hu, Stefan Berger <stefanb@linux.ibm.com>,
	syzbot+a67fc5321ffb4b311c98@syzkaller.appspotmail.com,
	Alexander Viro <viro@zeniv.linux.org.uk>,
	linux-fsdevel@vger.kernel.org, Tyler Hicks <code@tyhicks.com>,
	Mimi Zohar <zohar@linux.ibm.com>,
	Christian Brauner <brauner@kernel.org>
Subject: Re: [PATCH] fs: Pass AT_GETATTR_NOSEC flag to getattr interface function
Date: Fri, 08 Dec 2023 06:10:18 +0900	[thread overview]
Message-ID: <1734.1701983418@jrotkm2> (raw)
In-Reply-To: <20231002125733.1251467-1-stefanb@linux.vnet.ibm.com>

Stefan Berger:
> When vfs_getattr_nosec() calls a filesystem's getattr interface function
> then the 'nosec' should propagate into this function so that
> vfs_getattr_nosec() can again be called from the filesystem's gettattr
> rather than vfs_getattr(). The latter would add unnecessary security
> checks that the initial vfs_getattr_nosec() call wanted to avoid.
> Therefore, introduce the getattr flag GETATTR_NOSEC and allow to pass
> with the new getattr_flags parameter to the getattr interface function.
> In overlayfs and ecryptfs use this flag to determine which one of the
> two functions to call.

You are introducing two perfectly identical functions.
ecryptfs_do_getattr() and ovl_do_getattr().
Why don't you provide one in a common place, such like
include/linux/fs_stack.h?


J. R. Okajima

      parent reply	other threads:[~2023-12-07 21:10 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-10-02 12:57 [PATCH] fs: Pass AT_GETATTR_NOSEC flag to getattr interface function Stefan Berger
2023-10-02 13:22 ` Amir Goldstein
2023-10-02 13:52   ` Stefan Berger
2023-10-03 13:38   ` Christian Brauner
2023-10-10  1:14     ` Mimi Zohar
2023-10-10  8:35 ` Christian Brauner
2023-11-06 19:44   ` Stefan Berger
2023-11-08  9:20     ` Christian Brauner
2023-12-07 21:10 ` J. R. Okajima [this message]

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