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| author |   Jan Kara <jack@suse.cz> | 2016-05-12 18:29:20 +0200 |
|---|---|---|
| committer |   Ross Zwisler <ross.zwisler@linux.intel.com> | 2016-05-19 15:28:40 -0600 |
| commit | 4d9a2c8746671efbb0c27d3ae28c7474597a7aad (patch) | |
| tree | 34fb766e63a1e503ba48482b34325dbb7bd3aafe /tools/perf/scripts/python/stackcollapse.py | |
| parent | dax: Use radix tree entry lock to protect cow faults (diff) | |
| download | wireguard-linux-4d9a2c8746671efbb0c27d3ae28c7474597a7aad.tar.xz wireguard-linux-4d9a2c8746671efbb0c27d3ae28c7474597a7aad.zip | |
dax: Remove i_mmap_lock protection
Currently faults are protected against truncate by filesystem specific
i_mmap_sem and page lock in case of hole page. Cow faults are protected
DAX radix tree entry locking. So there's no need for i_mmap_lock in DAX
code. Remove it.
Reviewed-by: Ross Zwisler <ross.zwisler@linux.intel.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Ross Zwisler <ross.zwisler@linux.intel.com>
Diffstat (limited to 'tools/perf/scripts/python/stackcollapse.py')
0 files changed, 0 insertions, 0 deletions