On 02/25/2013 06:30 AM, Wang Shilong wrote:
From: Wang Shilong <wangsl-f...@cn.fujitsu.com>
As we implement the strict hierarchy quota in the userspace,
it is sufficient to check this ruler in the userspace.remove
the special check for qgroup 0.
I haven't done any kernel coding so I'm curious, but is this a safe
change? When I code, I always have the authoritative code do a check,
e.g. in web programing, the browser can do data validation but you
always have the web server check incoming data also, so it doesn't hurt
to have it in the kernel itself.
The other thing is that it is possible for people and distributions to
upgrade the kernel without upgrading the btrfs tools, so there could be
a window when there is no check on somebody's system.
Regards,
Blair
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