tree 34fb766e63a1e503ba48482b34325dbb7bd3aafe
parent bc2466e4257369d0ebee2b6265070d323343fa72
author Jan Kara <jack@suse.cz> 1463070560 +0200
committer Ross Zwisler <ross.zwisler@linux.intel.com> 1463693320 -0600

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>