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author | Li Zefan <lizf@cn.fujitsu.com> | 2011-12-07 11:38:24 +0800 |
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committer | Li Zefan <lizf@cn.fujitsu.com> | 2012-01-11 10:26:54 +0800 |
commit | b367e47fb3a70f5d24ebd6faf7d42436d485fb2d (patch) | |
tree | 5acc05bae14070f2dad3433a1482fe3a7bab0744 /fs/compat.c | |
parent | c7c144db531fda414e532adac56e965ce332e2a5 (diff) |
Btrfs: fix possible deadlock when opening a seed device
The correct lock order is uuid_mutex -> volume_mutex -> chunk_mutex,
but when we mount a filesystem which has backing seed devices, we have
this lock chain:
open_ctree()
lock(chunk_mutex);
read_chunk_tree();
read_one_dev();
open_seed_devices();
lock(uuid_mutex);
and then we hit a lockdep splat.
Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Diffstat (limited to 'fs/compat.c')
0 files changed, 0 insertions, 0 deletions