linux-ext4 - Re: [RFC PATCH 2/5] fscrypt: use ENOTDIR when setting encryption policy on nondirectory

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Date:   Tue, 27 Dec 2016 21:28:41 -0500
From:   Theodore Ts'o <tytso@....edu>
To:     Eric Biggers <ebiggers@...gle.com>
Cc:     linux-fsdevel@...r.kernel.org, linux-ext4@...r.kernel.org,
        linux-f2fs-devel@...ts.sourceforge.net,
        Jaegeuk Kim <jaegeuk@...nel.org>,
        Richard Weinberger <richard@....at>,
        David Gstir <david@...ma-star.at>
Subject: Re: [RFC PATCH 2/5] fscrypt: use ENOTDIR when setting encryption
 policy on nondirectory

On Mon, Dec 05, 2016 at 11:12:45AM -0800, Eric Biggers wrote:
> As part of an effort to clean up fscrypt-related error codes, make
> FS_IOC_SET_ENCRYPTION_POLICY fail with ENOTDIR when the file descriptor
> does not refer to a directory.  This is more descriptive than EINVAL,
> which was ambiguous with some of the other error cases.
> 
> I am not aware of any users who might be relying on the previous error
> code of EINVAL, which was never documented anywhere, and in some buggy
> kernels did not exist at all as the S_ISDIR() check was missing.
> 
> This failure case will be exercised by an xfstest.
> 
> Signed-off-by: Eric Biggers <ebiggers@...gle.com>

Applied to the fscrypt branch, thanks.

				- Ted
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