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| author |   Jeff Layton <jlayton@kernel.org> | 2022-11-14 08:33:09 -0500 |
|---|---|---|
| committer | Jeff Layton <jlayton@kernel.org> | 2022-11-30 05:06:06 -0500 |
| commit | ab1ddef98a715eddb65309ffa83267e4e84a571e (patch) | |
| tree | e46db862227d19d37ab54a223c57e16af52599fe /tools/perf/scripts/python/exported-sql-viewer.py | |
| parent | filelock: WARN_ON_ONCE when ->fl_file and filp don't match (diff) | |
| download | wireguard-linux-ab1ddef98a715eddb65309ffa83267e4e84a571e.tar.xz wireguard-linux-ab1ddef98a715eddb65309ffa83267e4e84a571e.zip | |
filelock: new helper: vfs_inode_has_locks
Ceph has a need to know whether a particular inode has any locks set on
it. It's currently tracking that by a num_locks field in its
filp->private_data, but that's problematic as it tries to decrement this
field when releasing locks and that can race with the file being torn
down.
Add a new vfs_inode_has_locks helper that just returns whether any locks
are currently held on the inode.
Reviewed-by: Xiubo Li <xiubli@redhat.com>
Reviewed-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Diffstat (limited to 'tools/perf/scripts/python/exported-sql-viewer.py')
0 files changed, 0 insertions, 0 deletions