linux-kernel - Re: [PATCH v8 11/24] erofs: introduce xattr & posixacl support

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Message-ID: <813e1b65-e6ba-631c-6506-f356738c477f@kernel.org>
Date:   Mon, 2 Sep 2019 21:51:59 +0800
From:   Chao Yu <chao@...nel.org>
To:     dsterba@...e.cz, Christoph Hellwig <hch@...radead.org>,
        Gao Xiang <gaoxiang25@...wei.com>,
        linux-fsdevel@...r.kernel.org, devel@...verdev.osuosl.org,
        Alexander Viro <viro@...iv.linux.org.uk>,
        LKML <linux-kernel@...r.kernel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Stephen Rothwell <sfr@...b.auug.org.au>,
        Theodore Ts'o <tytso@....edu>, Pavel Machek <pavel@...x.de>,
        Amir Goldstein <amir73il@...il.com>,
        "Darrick J . Wong" <darrick.wong@...cle.com>,
        Dave Chinner <david@...morbit.com>,
        Jaegeuk Kim <jaegeuk@...nel.org>, Jan Kara <jack@...e.cz>,
        Richard Weinberger <richard@....at>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        linux-erofs@...ts.ozlabs.org, Chao Yu <yuchao0@...wei.com>,
        Miao Xie <miaoxie@...wei.com>,
        Li Guifu <bluce.liguifu@...wei.com>,
        Fang Wei <fangwei1@...wei.com>
Subject: Re: [PATCH v8 11/24] erofs: introduce xattr & posixacl support

On 2019-9-2 21:06, David Sterba wrote:
> On Mon, Sep 02, 2019 at 05:57:11AM -0700, Christoph Hellwig wrote:
>>> +config EROFS_FS_XATTR
>>> +	bool "EROFS extended attributes"
>>> +	depends on EROFS_FS
>>> +	default y
>>> +	help
>>> +	  Extended attributes are name:value pairs associated with inodes by
>>> +	  the kernel or by users (see the attr(5) manual page, or visit
>>> +	  <http://acl.bestbits.at/> for details).
>>> +
>>> +	  If unsure, say N.
>>> +
>>> +config EROFS_FS_POSIX_ACL
>>> +	bool "EROFS Access Control Lists"
>>> +	depends on EROFS_FS_XATTR
>>> +	select FS_POSIX_ACL
>>> +	default y
>>
>> Is there any good reason to make these optional these days?
> 
> I objected against adding so many config options, not to say for the
> standard features. The various cache strategies or other implementation
> details have been removed but I agree that making xattr/acl configurable
> is not necessary as well.

I can see similar *_ACL option in btrfs/ext4/xfs, should we remove them as well
due to the same reason?

Thanks,

>