diff options
| author | Roger Pau Monné <[email protected]> | 2015-11-03 16:34:09 +0000 |
|---|---|---|
| committer | Konrad Rzeszutek Wilk <[email protected]> | 2015-12-18 10:00:32 -0500 |
| commit | 1f13d75ccb806260079e0679d55d9253e370ec8a (patch) | |
| tree | a791cbe758b8c1c4feaf3a88603c7f96f7a4b7ba /tools/perf/scripts/python/Perf-Trace-Util/lib/Perf | |
| parent | 68a33bfd8403e4e22847165d149823a2e0e67c9c (diff) | |
xen-blkback: only read request operation from shared ring once
A compiler may load a switch statement value multiple times, which could
be bad when the value is in memory shared with the frontend.
When converting a non-native request to a native one, ensure that
src->operation is only loaded once by using READ_ONCE().
This is part of XSA155.
CC: [email protected]
Signed-off-by: Roger Pau Monné <[email protected]>
Signed-off-by: David Vrabel <[email protected]>
Signed-off-by: Konrad Rzeszutek Wilk <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/Perf-Trace-Util/lib/Perf')
0 files changed, 0 insertions, 0 deletions