On Fri, 30 Jan 2015 09:33:17 +0800, Qu Wenruo wrote:
Original Message
Subject: Re: [PATCH RESEND v4 2/8] btrfs: Make btrfs_parse_options() parse
mount
option in a atomic way
From: Miao Xie miao...@huawei.com
To: Qu Wenruo quwen...@cn.fujitsu.com, linux-btrfs
On Thu, 29 Jan 2015 10:24:35 +0800, Qu Wenruo wrote:
Current btrfs_parse_options() is not atomic, which can set and clear a
bit, especially for nospace_cache case.
For example, if a fs is mounted with nospace_cache,
btrfs_parse_options() will set SPACE_CACHE bit first(since
cache_generation
Original Message
Subject: Re: [PATCH RESEND v4 2/8] btrfs: Make btrfs_parse_options()
parse mount option in a atomic way
From: Miao Xie miao...@huawei.com
To: Qu Wenruo quwen...@cn.fujitsu.com, linux-btrfs@vger.kernel.org
Date: 2015年01月30日 08:31
On Thu, 29 Jan 2015 10:24:35
Original Message
Subject: Re: [PATCH RESEND v4 2/8] btrfs: Make btrfs_parse_options()
parse mount option in a atomic way
From: Miao Xie miao...@huawei.com
To: Qu Wenruo quwen...@cn.fujitsu.com, linux-btrfs@vger.kernel.org
Date: 2015年01月30日 09:29
On Fri, 30 Jan 2015 09:20:46
Original Message
Subject: Re: [PATCH RESEND v4 2/8] btrfs: Make btrfs_parse_options()
parse mount option in a atomic way
From: Miao Xie miao...@huawei.com
To: Qu Wenruo quwen...@cn.fujitsu.com, linux-btrfs@vger.kernel.org
Date: 2015年01月30日 10:06
On Fri, 30 Jan 2015 09:33:17
On Fri, 30 Jan 2015 10:51:52 +0800, Qu Wenruo wrote:
Original Message
Subject: Re: [PATCH RESEND v4 2/8] btrfs: Make btrfs_parse_options() parse
mount
option in a atomic way
From: Miao Xie miao...@huawei.com
To: Qu Wenruo quwen...@cn.fujitsu.com, linux-btrfs
Original Message
Subject: Re: [PATCH RESEND v4 2/8] btrfs: Make btrfs_parse_options()
parse mount option in a atomic way
From: Miao Xie miao...@huawei.com
To: Qu Wenruo quwen...@cn.fujitsu.com, linux-btrfs@vger.kernel.org
Date: 2015年01月30日 11:21
On Fri, 30 Jan 2015 10:51:52
Current btrfs_parse_options() is not atomic, which can set and clear a
bit, especially for nospace_cache case.
For example, if a fs is mounted with nospace_cache,
btrfs_parse_options() will set SPACE_CACHE bit first(since
cache_generation is non-zeo) and clear the SPACE_CACHE bit due to
