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dm table: replace struct io_restrictions with struct queue_limits

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Use blk_stack_limits() to stack block limits (including topology) rather
than duplicate the equivalent within Device Mapper.

Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
This commit is contained in:
Mike Snitzer
2009-06-22 10:12:32 +01:00
committed by Alasdair G Kergon
parent be6d4305db
commit 5ab97588fb
2 changed files with 45 additions and 109 deletions
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16
include/linux/device-mapper.h
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@@ -144,18 +144,6 @@ struct target_type {
struct list_head list;
};
struct io_restrictions {
unsigned long bounce_pfn;
unsigned long seg_boundary_mask;
unsigned max_hw_sectors;
unsigned max_sectors;
unsigned max_segment_size;
unsigned short logical_block_size;
unsigned short max_hw_segments;
unsigned short max_phys_segments;
unsigned char no_cluster; /* inverted so that 0 is default */
};
struct dm_target {
struct dm_table *table;
struct target_type *type;
@@ -164,7 +152,7 @@ struct dm_target {
sector_t begin;
sector_t len;
/* FIXME: turn this into a mask, and merge with io_restrictions */
/* FIXME: turn this into a mask, and merge with queue_limits */
/* Always a power of 2 */
sector_t split_io;
@@ -182,7 +170,7 @@ struct dm_target {
* These are automatically filled in by
* dm_table_get_device.
*/
struct io_restrictions limits;
struct queue_limits limits;
/* target specific data */
void *private;