Lines Matching refs:io_region
8 The user must set up an io_region structure to describe the desired location
9 of the I/O. Each io_region indicates a block-device along with the starting
12 struct io_region {
18 Dm-io can read from one io_region or write to one or more io_regions. Writes
19 to multiple regions are specified by an array of io_region structures.
29 int dm_io_sync(unsigned int num_regions, struct io_region *where, int rw,
32 int dm_io_async(unsigned int num_regions, struct io_region *where, int rw,
40 int dm_io_sync_bvec(unsigned int num_regions, struct io_region *where,
43 int dm_io_async_bvec(unsigned int num_regions, struct io_region *where,
52 int dm_io_sync_vm(unsigned int num_regions, struct io_region *where, int rw,
54 int dm_io_async_vm(unsigned int num_regions, struct io_region *where, int rw,