diff options
| author | Eric Farman <[email protected]> | 2019-06-18 22:23:48 +0200 |
|---|---|---|
| committer | Cornelia Huck <[email protected]> | 2019-06-21 14:12:19 +0200 |
| commit | 1d897e478da3db91593d86227854802102e2fcd3 (patch) | |
| tree | fca71d80651b7f6a957737e09b1ed6649d248d18 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | 01aa26c672c0eb771de4aaa2a8ccf6055778887b (diff) | |
vfio-ccw: Move guest_cp storage into common struct
Rather than allocating/freeing a piece of memory every time
we try to figure out how long a CCW chain is, let's use a piece
of memory allocated for each device.
The io_mutex added with commit 4f76617378ee9 ("vfio-ccw: protect
the I/O region") is held for the duration of the VFIO_CCW_EVENT_IO_REQ
event that accesses/uses this space, so there should be no race
concerns with another CPU attempting an (unexpected) SSCH for the
same device.
Suggested-by: Cornelia Huck <[email protected]>
Signed-off-by: Eric Farman <[email protected]>
Message-Id: <[email protected]>
Reviewed-by: Cornelia Huck <[email protected]>
Reviewed-by: Farhan Ali <[email protected]>
Signed-off-by: Cornelia Huck <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions