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| author |   Liu Bo <bo.li.liu@oracle.com> | 2016-11-30 16:11:04 -0800 |
|---|---|---|
| committer |   David Sterba <dsterba@suse.com> | 2017-01-03 15:19:17 +0100 |
| commit | e321f8a801d7b4c40da8005257b05b9c2b51b072 (patch) | |
| tree | 11df9f784d72ca301b9bfca794fe70c9a0c43628 /tools/perf/util/scripting-engines/trace-event-python.c | |
| parent | btrfs: fix locking when we put back a delayed ref that's too new (diff) | |
| download | wireguard-linux-e321f8a801d7b4c40da8005257b05b9c2b51b072.tar.xz wireguard-linux-e321f8a801d7b4c40da8005257b05b9c2b51b072.zip | |
Btrfs: use down_read_nested to make lockdep silent
If @block_group is not @used_bg, it'll try to get @used_bg's lock without
droping @block_group 's lock and lockdep has throwed a scary deadlock warning
about it.
Fix it by using down_read_nested.
Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'tools/perf/util/scripting-engines/trace-event-python.c')
0 files changed, 0 insertions, 0 deletions