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| author | Ilya Dryomov <[email protected]> | 2019-06-05 17:25:11 +0000 |
|---|---|---|
| committer | Ilya Dryomov <[email protected]> | 2019-07-08 12:01:45 +0000 |
| commit | 22e8bd51bb0469d1a524130a057f894ff632376a (patch) | |
| tree | 1cf2eaf3fac621e7154f58a7915e94db5851744e /tools/perf/scripts/python/syscall-counts-by-pid.py | |
| parent | rbd: call rbd_dev_mapping_set() from rbd_dev_image_probe() (diff) | |
| download | kernel-22e8bd51bb0469d1a524130a057f894ff632376a.tar.gz kernel-22e8bd51bb0469d1a524130a057f894ff632376a.zip | |
rbd: support for object-map and fast-diff
Speed up reads, discards and zeroouts through RBD_OBJ_FLAG_MAY_EXIST
and RBD_OBJ_FLAG_NOOP_FOR_NONEXISTENT based on object map.
Invalid object maps are not trusted, but still updated. Note that we
never iterate, resize or invalidate object maps. If object-map feature
is enabled but object map fails to load, we just fail the requester
(either "rbd map" or I/O, by way of post-acquire action).
Signed-off-by: Ilya Dryomov <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/syscall-counts-by-pid.py')
0 files changed, 0 insertions, 0 deletions