btrfs: Check qgroup level in kernel qgroup assign.

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Although we have qgroup level check in btrfs-progs, it's not enough
since other programe may still call ioctl directly not using
btrfs-progs. For example, systemd.

But it's btrfs-progs to be blame since we don't provide a
full-function(like subvolume create things) btrfs library with enough
check, and only rely on kernel ioctl.

So Add level checks in kernel too.

Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
Reviewed-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: Chris Mason <clm@fb.com>

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Qu Wenruo 2015-02-27 16:24:22 +08:00 • committed by Chris Mason

parent f5a6b1c53b

commit 8465ecec96

2 changed files with 10 additions and 0 deletions

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6

fs/btrfs/ctree.h

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4

fs/btrfs/qgroup.c

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