xfs: add asserts for the mmap lock in xfs_{insert,collapse}_file_space

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
This commit is contained in:
Christoph Hellwig 2017-10-23 16:32:38 -07:00 • committed by Darrick J. Wong
commit 9ad1a23afb