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Date: Tue, 30 Jan 2024 16:29:37 -0800
From: Eric Biggers <ebiggers@kernel.org>
To: Gabriel Krisman Bertazi <krisman@suse.de>
Cc: viro@zeniv.linux.org.uk, jaegeuk@kernel.org, tytso@mit.edu,
	amir73il@gmail.com, linux-ext4@vger.kernel.org,
	linux-f2fs-devel@lists.sourceforge.net,
	linux-fsdevel@vger.kernel.org
Subject: Re: [PATCH v5 02/12] fscrypt: Factor out a helper to configure the
 lookup dentry
Message-ID: <20240131002937.GB2020@sol.localdomain>
References: <20240129204330.32346-1-krisman@suse.de>
 <20240129204330.32346-3-krisman@suse.de>
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In-Reply-To: <20240129204330.32346-3-krisman@suse.de>

On Mon, Jan 29, 2024 at 05:43:20PM -0300, Gabriel Krisman Bertazi wrote:
> Both fscrypt_prepare_lookup_dentry_partial and
> fscrypt_prepare_lookup_dentry will set DCACHE_NOKEY_NAME for dentries
> when the key is not available. 

Shouldn't this say: "Both fscrypt_prepare_lookup() and
fscrypt_prepare_lookup_partial() set DCACHE_NOKEY_NAME for dentries when the key
is not available."

> @@ -131,12 +128,13 @@ EXPORT_SYMBOL_GPL(__fscrypt_prepare_lookup);
>  int fscrypt_prepare_lookup_partial(struct inode *dir, struct dentry *dentry)
>  {
>  	int err = fscrypt_get_encryption_info(dir, true);
> +	bool is_nokey_name = false;
> +
> +	if (!err && !fscrypt_has_encryption_key(dir))
> +		is_nokey_name = true;

	bool is_nokey_name = (err == 0 && !fscrypt_has_encryption_key(dir));

> diff --git a/include/linux/fscrypt.h b/include/linux/fscrypt.h
> index 12f9e455d569..68ca8706483a 100644
> --- a/include/linux/fscrypt.h
> +++ b/include/linux/fscrypt.h
> @@ -948,6 +948,16 @@ static inline int fscrypt_prepare_rename(struct inode *old_dir,
>  	return 0;
>  }
>  
> +static inline void fscrypt_prepare_lookup_dentry(struct dentry *dentry,
> +						 bool is_nokey_name)

Maybe just fscrypt_prepare_dentry()?

- Eric