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author | Qu Wenruo <quwenruo@cn.fujitsu.com> | 2016-02-22 14:59:54 +0800 |
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committer | David Sterba <dsterba@suse.com> | 2016-02-26 17:27:58 +0100 |
commit | 43318324d20cccccfacf2e82ac10e27eefb6cc95 (patch) | |
tree | a15dbe5de507252b055409ed00d23334c3f181f1 /btrfs-corrupt-block.c | |
parent | e2e0dae926b2174c368ee6dbed610d9f98c193a5 (diff) |
btrfs-progs: Allow open_ctree to return fs_info even chunk tree is corrupted
Current open_ctree_fs_info() won't return anything if chunk tree root is
corrupted.
This makes some function, like btrfs-find-root, unable to find any older
chunk tree root, even it is possible to use system_chunk_array in super
block.
And at least two users in mail list has reported such heavily chunk
corruption.
Although we have 'btrfs rescue chunk-recovery' but it's too time
consuming and sometimes not able to cope with a specific filesystem
corruption.
This patch adds a new open ctree flag,
OPEN_CTREE_IGNORE_CHUNK_TREE_ERROR, allowing fs_info to be returned from
open_ctree_fs_info() even there is no valid tree root in it.
Also adds a new close_ctree() variant, close_ctree_fs_info() to handle
possible fs_info without any root.
Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
[ adjusted error messages ]
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'btrfs-corrupt-block.c')
0 files changed, 0 insertions, 0 deletions