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| author | Mikulas Patocka <mpatocka@redhat.com> | 2009-06-22 11:12:20 +0200 |
|---|---|---|
| committer | Alasdair G Kergon <agk@redhat.com> | 2009-06-22 11:12:20 +0200 |
| commit | f9ab94cee313746573b2d693bc2afb807ebb0998 (patch) | |
| tree | 150155f364db0f26c7217e1f92d31344aa67a3f0 /drivers/dio | |
| parent | dm: remove check that prevents mapping empty bios (diff) | |
| download | linux-f9ab94cee313746573b2d693bc2afb807ebb0998.tar.xz linux-f9ab94cee313746573b2d693bc2afb807ebb0998.zip | |
dm: introduce num_flush_requests
Introduce num_flush_requests for a target to set to say how many flush
instructions (empty barriers) it wants to receive. These are sent by
__clone_and_map_empty_barrier with map_info->flush_request going from 0
to (num_flush_requests - 1).
Old targets without flush support won't receive any flush requests.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Diffstat (limited to 'drivers/dio')
0 files changed, 0 insertions, 0 deletions