Add a lock on the bitmap of each CXLDCRegion in preparation for the next
patch which implements FMAPI Set DC Region Configuration. This command
can modify the block size, which means the region's bitmap must be updated
accordingly.
The lock becomes necessary when commands that add/release extents
(meaning they update the bitmap too) are enabled on a different CCI than
the CCI on which the FMAPI commands are enabled.
Reviewed-by: Fan Ni <fan.ni@samsung.com>
Signed-off-by: Anisa Su <anisa.su@samsung.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Message-Id: <20250714174509.1984430-7-Jonathan.Cameron@huawei.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
69798d000b