From: Dongsheng Yang <yangds.fnst@cn.fujitsu.com>
To: <dedekind1@gmail.com>, <richard@nod.at>, <linux-mtd@lists.infradead.org>
Subject: Re: [PATCH v3] ubifs: make ubifs_[get|set]xattr atomic
Date: Wed, 12 Aug 2015 10:37:30 +0800 [thread overview]
Message-ID: <55CAB16A.7070307@cn.fujitsu.com> (raw)
In-Reply-To: <1439297201.31419.25.camel@gmail.com>
On 08/11/2015 08:46 PM, Artem Bityutskiy wrote:
> On Tue, 2015-08-11 at 11:32 +0800, Dongsheng Yang wrote:
>> So, I think fields in host are all protected by host->ui_mutex and
>> fields in xattr inodes are all protected by individual ui_mutex.
>>
>> Am I missing something?
>
> OK, on a second look, your patch is probably fine.
>
>> BTW, I found I have to add ui_mutex in create_xattr() even if you
>> agree with it. :)
>
> I am not sure about this. I thought xattrs are not visible to anyone
> while they are being created, so you do not need any locking there,
> since you do not have anyone to race with you.
Makes sense.
Yang
>
> Artem/
>
>
>
next prev parent reply other threads:[~2015-08-12 2:43 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-07-30 5:37 [PATCH] ubifs: make ubifs_[get|set]xattr atomic Dongsheng Yang
2015-07-30 8:05 ` Richard Weinberger
2015-07-31 0:04 ` Dongsheng Yang
2015-07-31 1:12 ` [PATCH v2] " Dongsheng Yang
2015-08-03 20:27 ` Richard Weinberger
2015-08-07 5:40 ` Dongsheng Yang
2015-08-07 6:07 ` [PATCH v3] " Dongsheng Yang
2015-08-10 8:05 ` Artem Bityutskiy
2015-08-11 3:32 ` Dongsheng Yang
2015-08-11 12:46 ` Artem Bityutskiy
2015-08-12 2:37 ` Dongsheng Yang [this message]
2015-08-11 12:57 ` Artem Bityutskiy
2015-08-12 2:37 ` Dongsheng Yang
2015-08-08 20:34 ` [PATCH v2] " Richard Weinberger
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