Re: [PATCH v10 1/4] unicode: Add utf8_casefold_hash

From: Eric Biggers <ebiggers@kernel.org>
To: Daniel Rosenberg <drosen@google.com>
Cc: Theodore Ts'o <tytso@mit.edu>,
	linux-ext4@vger.kernel.org, Jaegeuk Kim <jaegeuk@kernel.org>,
	Chao Yu <chao@kernel.org>,
	linux-f2fs-devel@lists.sourceforge.net,
	linux-fscrypt@vger.kernel.org,
	Alexander Viro <viro@zeniv.linux.org.uk>,
	Andreas Dilger <adilger.kernel@dilger.ca>,
	linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org,
	Gabriel Krisman Bertazi <krisman@collabora.com>,
	kernel-team@android.com
Subject: Re: [PATCH v10 1/4] unicode: Add utf8_casefold_hash
Date: Tue, 7 Jul 2020 18:36:01 -0700	[thread overview]
Message-ID: <20200708013601.GF839@sol.localdomain> (raw)
In-Reply-To: <20200707113123.3429337-2-drosen@google.com>

On Tue, Jul 07, 2020 at 04:31:20AM -0700, Daniel Rosenberg wrote:
> This adds a case insensitive hash function to allow taking the hash
> without needing to allocate a casefolded copy of the string.
> 
> The existing d_hash implementations for casefolding allocates memory
> within rcu-walk, by avoiding it we can be more efficient and avoid
> worrying about a failed allocation.
> 
> Signed-off-by: Daniel Rosenberg <drosen@google.com>

You can add:

	Reviewed-by: Eric Biggers <ebiggers@google.com>

If you have a chance please fix the grammar in the commit message though:

"The existing d_hash implementations for casefolding allocate memory
within rcu-walk.  By avoiding this we can be more efficient and avoid
worrying about a failed allocation."

- Eric