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| author | Liu Bo <liubo2009@cn.fujitsu.com> | 2012-05-11 18:11:26 +0800 |
|---|---|---|
| committer | Josef Bacik <josef@redhat.com> | 2012-05-30 10:23:35 -0400 |
| commit | 9ba1f6e44ed7a1fa52d3f292508bf921b5054172 (patch) | |
| tree | 2c20508be673a9ebce14d27efa6ee05a04695787 /fs/splice.c | |
| parent | d1ac6e41d5437385957fd708e285defd0b1a430c (diff) | |
| download | blackbird-op-linux-9ba1f6e44ed7a1fa52d3f292508bf921b5054172.tar.gz blackbird-op-linux-9ba1f6e44ed7a1fa52d3f292508bf921b5054172.zip | |
Btrfs: do not do balance in readonly mode
In normal cases, we would not be allowed to do balance in RO mode.
However, when we're using a seeding device and adding another device to sprout,
things will change:
$ mkfs.btrfs /dev/sdb7
$ btrfstune -S 1 /dev/sdb7
$ mount /dev/sdb7 /mnt/btrfs -o ro
$ btrfs fi bal /mnt/btrfs -----------------------> fail.
$ btrfs dev add /dev/sdb8 /mnt/btrfs
$ btrfs fi bal /mnt/btrfs -----------------------> works!
It should not be designed as an exception, and we'd better add another check for
mnt flags.
Signed-off-by: Liu Bo <liubo2009@cn.fujitsu.com>
Reviewed-by: Josef Bacik <josef@redhat.com>
Diffstat (limited to 'fs/splice.c')
0 files changed, 0 insertions, 0 deletions
