Btrfs: get write access when setting the default subvolume

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When wen want to set the default subvolume, we must get write access, or
we will change the R/O file system.

Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>

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Miao Xie 2012-11-26 08:43:07 +00:00 • committed by Chris Mason

parent 8cd2807f79

commit 3c04ce0105

1 changed files with 28 additions and 12 deletions

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fs/btrfs/ioctl.c

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