linux-ext4 - Re: [PATCH v2 1/3] libfs: Add generic function for setting dentry

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Date:   Tue, 17 Nov 2020 12:33:31 -0500
From:   "Theodore Y. Ts'o" <tytso@....edu>
To:     Daniel Rosenberg <drosen@...gle.com>
Cc:     Jaegeuk Kim <jaegeuk@...nel.org>,
        Eric Biggers <ebiggers@...nel.org>,
        Andreas Dilger <adilger.kernel@...ger.ca>,
        Chao Yu <chao@...nel.org>,
        Alexander Viro <viro@...iv.linux.org.uk>,
        Richard Weinberger <richard@....at>,
        linux-fscrypt@...r.kernel.org, linux-ext4@...r.kernel.org,
        linux-f2fs-devel@...ts.sourceforge.net,
        linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org,
        linux-mtd@...ts.infradead.org,
        Gabriel Krisman Bertazi <krisman@...labora.com>,
        kernel-team@...roid.com
Subject: Re: [PATCH v2 1/3] libfs: Add generic function for setting dentry_ops

On Tue, Nov 17, 2020 at 04:03:13AM +0000, Daniel Rosenberg wrote:
> This adds a function to set dentry operations at lookup time that will
> work for both encrypted filenames and casefolded filenames.
> 
> A filesystem that supports both features simultaneously can use this
> function during lookup preparations to set up its dentry operations once
> fscrypt no longer does that itself.
> 
> Currently the casefolding dentry operation are always set if the
> filesystem defines an encoding because the features is toggleable on
> empty directories. Since we don't know what set of functions we'll
> eventually need, and cannot change them later, we add just add them.
> 
> Signed-off-by: Daniel Rosenberg <drosen@...gle.com>

Reviewed-by: Theodore Ts'o <tytso@....edu>

						- Ted