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| author | Miao Xie <miaox@cn.fujitsu.com> | 2010-06-07 03:38:51 +0000 |
|---|---|---|
| committer | Chris Mason <chris.mason@oracle.com> | 2010-06-11 11:46:11 -0400 |
| commit | 4a001071d3549f596c7c3736c5dda8a3a4aba9ed (patch) | |
| tree | f835cbd0779a8912aa65669bbd44ce3f756c919f /fs/btrfs/print-tree.c | |
| parent | 9aeead73782c4b8e2a91def36dbf95db28605c95 (diff) | |
| download | blackbird-op-linux-4a001071d3549f596c7c3736c5dda8a3a4aba9ed.tar.gz blackbird-op-linux-4a001071d3549f596c7c3736c5dda8a3a4aba9ed.zip | |
Btrfs: fix loop device on top of btrfs
We cannot use the loop device which has been connected to a file in the btrf
The reproduce steps is following:
# dd if=/dev/zero of=vdev0 bs=1M count=1024
# losetup /dev/loop0 vdev0
# mkfs.btrfs /dev/loop0
...
failed to zero device start -5
The reason is that the btrfs don't implement either ->write_begin or ->write
the VFS API, so we fix it by setting ->write to do_sync_write().
Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'fs/btrfs/print-tree.c')
0 files changed, 0 insertions, 0 deletions
