linux-kernel - Re: [PATCH 06/13] vfs: add whiteout support

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Message-Id: <201405241729.AEI35937.HFFQJOOFLOVMSt@I-love.SAKURA.ne.jp>
Date:	Sat, 24 May 2014 17:29:35 +0900
From:	Tetsuo Handa <penguin-kernel@...ove.SAKURA.ne.jp>
To:	miklos@...redi.hu, linux-security-module@...r.kernel.org
Cc:	viro@...IV.linux.org.uk, torvalds@...ux-foundation.org,
	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
	hch@...radead.org, akpm@...ux-foundation.org, apw@...onical.com,
	nbd@...nwrt.org, neilb@...e.de, jordipujolp@...il.com,
	ezk@....cs.sunysb.edu, dhowells@...hat.com, sedat.dilek@...il.com,
	hooanon05@...oo.co.jp, mszeredi@...e.cz
Subject: Re: [PATCH 06/13] vfs: add whiteout support

Miklos Szeredi wrote:
> +int vfs_whiteout(struct inode *dir, struct dentry *dentry)
> +{
> +	int error = may_create(dir, dentry);
> +	if (error)
> +		return error;
> +
> +	if (!dir->i_op->mknod)
> +		return -EPERM;
> +
> +	return dir->i_op->mknod(dir, dentry,
> +				S_IFCHR | WHITEOUT_MODE, WHITEOUT_DEV);
> +}
> +EXPORT_SYMBOL(vfs_whiteout);

May I verify which/how security_path_*() hooks are called for vfs_whiteout() ?
(Please include linux-security-module@...r.kernel.org when making VFS changes.
TOMOYO and AppArmor don't want to be left behind again.)
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