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Btrfs: fix OOPS of empty filesystem after balance
authorliubo <[email protected]>
Mon, 7 Mar 2011 02:13:14 +0000 (02:13 +0000)
committerroot <Chris Mason [email protected]>
Mon, 28 Mar 2011 09:37:53 +0000 (05:37 -0400)
commitc59021f846881a957ac5afe456d0f59d6a517b61
tree63e0552f2850b55dcc6bde31e0610e5f22046675tree | snapshot
parent9f7c43c96727a53bea45f7f2549d897f0a6117b8commit | diff
Btrfs: fix OOPS of empty filesystem after balance

btrfs will remove unused block groups after balance.
When a empty filesystem is balanced, the block group with tag "DATA" may be
dropped, and after umount and mount again, it will not find "DATA" space_info
and lead to OOPS.
So we initial the necessary space_infos(DATA, SYSTEM, METADATA) to avoid OOPS.

Reported-by: Daniel J Blueman <[email protected]>
Signed-off-by: Liu Bo <[email protected]>
Signed-off-by: Chris Mason <[email protected]>
fs/btrfs/ctree.h diff | blob | blame | history
fs/btrfs/disk-io.c diff | blob | blame | history
fs/btrfs/extent-tree.c diff | blob | blame | history
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