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authorJan Kara <jack@suse.cz>2016-05-12 18:29:16 +0200
committerRoss Zwisler <ross.zwisler@linux.intel.com>2016-05-19 15:14:55 -0600
commite804315dd0f574b56155c5a2406ab5e0318104f7 (patch)
tree4f32114d6642bf2f4a1863ac58d684e6c7ce5cda /mm/filemap.c
parent348e967ab07c96a9e7a6a194812254a8df2045c0 (diff)
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dax: Define DAX lock bit for radix tree exceptional entry
We will use lowest available bit in the radix tree exceptional entry for locking of the entry. Define it. Also clean up definitions of DAX entry type bits in DAX exceptional entries to use defined constants instead of hardcoding numbers and cleanup checking of these bits to not rely on how other bits in the entry are set. 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>
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