diff options
| author | David Vrabel <[email protected]> | 2013-09-11 17:45:44 +0000 |
|---|---|---|
| committer | Stefano Stabellini <[email protected]> | 2013-09-11 17:52:58 +0000 |
| commit | 2bad07ce28a0f61c1e776f99aa05f85e4e689e24 (patch) | |
| tree | b13abf74f1f22eaf3d71e5c399c599f72fd77c82 /tools/perf/util/trace-event-scripting.c | |
| parent | c3b7cb1fd8c1513be99fb3cfb7f39c5116d80dac (diff) | |
xen/balloon: ensure preemption is disabled when using a scratch page
In decrease_reservation(), if the kernel is preempted between updating
the mapping and updating the p2m then they may end up using different
scratch pages.
Use get_balloon_scratch_page() and put_balloon_scratch_page() which use
get_cpu_var() and put_cpu_var() to correctly disable preemption.
Signed-off-by: David Vrabel <[email protected]>
Signed-off-by: Stefano Stabellini <[email protected]>
Tested-by: Sander Eikelenboom <[email protected]>
Diffstat (limited to 'tools/perf/util/trace-event-scripting.c')
0 files changed, 0 insertions, 0 deletions