diff options
| author | Zhaolei <[email protected]> | 2015-08-06 22:39:36 +0800 |
|---|---|---|
| committer | Chris Mason <[email protected]> | 2015-08-09 07:07:14 -0700 |
| commit | 166f66d0bc94a14ec4bc6ee6ab079532df4a8d9e (patch) | |
| tree | 276972a024d58650bcf98113bfd264b9ff1c3fb5 /lib/mpi/mpiutil.c | |
| parent | 9ed0dea09fc5e8cb1926c15fc986a46a2db43da6 (diff) | |
btrfs: Add WARN_ON() for double lock in btrfs_tree_lock()
When a task trying to double lock a extent buffer, there are no
lockdep warning about it because this lock may be in "blocking_lock"
state, and make us hard to debug.
This patch add a WARN_ON() for above condition, it can not report
all deadlock cases(as lock between tasks), but at least helps us
some.
Signed-off-by: Zhao Lei <[email protected]>
Signed-off-by: Chris Mason <[email protected]>
Diffstat (limited to 'lib/mpi/mpiutil.c')
0 files changed, 0 insertions, 0 deletions