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From: Oleg Drokin <green@linuxhacker.ru>
To: Al Viro <viro@ZenIV.linux.org.uk>
Cc: Jeff Layton <jlayton@poochiereds.net>,
	"J. Bruce Fields" <bfields@fieldses.org>,
	linux-nfs@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] nfsd: Make creates return EEXIST correctly instead of EPERM
Date: Fri, 8 Jul 2016 22:58:38 -0400	[thread overview]
Message-ID: <BC2500DE-9763-4D97-9618-C7548D0807F7@linuxhacker.ru> (raw)
In-Reply-To: <20160709025230.GR14480@ZenIV.linux.org.uk>


On Jul 8, 2016, at 10:52 PM, Al Viro wrote:

> On Fri, Jul 08, 2016 at 11:59:50AM -0400, Oleg Drokin wrote:
> 
>> "If path names a symbolic link, mkdir() shall fail and set errno to [EEXIST]."
>> 
>> This sounds pretty straightforward to me, no?
>> Since it does not matter that we do not have write permissions here, because
>> the name already exists.
> 
> When more than one condition applies, we have every right to return any of
> them.  POSIX does *NOT* specify the order of checks.  Never had.

Out of curiosity, why does filename_create() delay EROFS then?

  reply	other threads:[~2016-07-09  2:58 UTC|newest]

Thread overview: 37+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-07-08  1:47 [PATCH] nfsd: Make creates return EEXIST correctly instead of EPERM Oleg Drokin
2016-07-08 11:02 ` Jeff Layton
2016-07-08 15:14   ` Oleg Drokin
2016-07-08 15:53     ` Jeff Layton
2016-07-08 15:59       ` Oleg Drokin
2016-07-08 16:17         ` Jeff Layton
2016-07-08 16:28           ` Oleg Drokin
2016-07-09  2:52         ` Al Viro
2016-07-09  2:58           ` Oleg Drokin [this message]
2016-07-09  3:13             ` Al Viro
2016-07-08 16:04       ` J. Bruce Fields
2016-07-08 16:16         ` Oleg Drokin
2016-07-08 20:49           ` J. Bruce Fields
2016-07-08 21:47             ` Oleg Drokin
2016-07-09  3:10               ` Al Viro
2016-07-09  3:41                 ` Oleg Drokin
2016-07-13 19:00                   ` J. Bruce Fields
2016-07-08 20:54 ` J. Bruce Fields
2016-07-08 21:53   ` Oleg Drokin
2016-07-21 20:34     ` J. Bruce Fields
2016-07-21 20:37       ` Oleg Drokin
2016-07-22  1:57         ` J. Bruce Fields
2016-07-22  6:35           ` Oleg Drokin
2016-07-22 10:55             ` J. Bruce Fields
2016-07-22 15:13               ` Oleg Drokin
2016-07-22 17:48                 ` J. Bruce Fields
2016-07-22 17:48                   ` [PATCH 1/7] nfsd: Make creates return EEXIST instead of EACCES J. Bruce Fields
2016-07-22 17:48                   ` [PATCH 2/7] nfsd: remove redundant zero-length check from create J. Bruce Fields
2016-07-22 17:48                   ` [PATCH 3/7] nfsd: remove redundant i_lookup check J. Bruce Fields
2016-07-24  0:22                     ` Al Viro
2016-07-24 12:10                       ` J. Bruce Fields
2016-07-24 14:23                         ` Al Viro
2016-07-24 20:21                           ` J. Bruce Fields
2016-07-22 17:48                   ` [PATCH 4/7] nfsd: reorganize nfsd_create J. Bruce Fields
2016-07-22 17:48                   ` [PATCH 5/7] nfsd: remove unnecessary positive-dentry check J. Bruce Fields
2016-07-22 17:48                   ` [PATCH 6/7] nfsd: clean up bad-type check in nfsd_create_locked J. Bruce Fields
2016-07-22 17:48                   ` [PATCH 7/7] nfsd: drop unnecessary MAY_EXEC check from create J. Bruce Fields

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