diff options
| author | Daniel De Graaf <[email protected]> | 2011-02-09 16:11:32 -0500 |
|---|---|---|
| committer | Konrad Rzeszutek Wilk <[email protected]> | 2011-02-14 14:16:22 -0500 |
| commit | 12996fc38a2d760f3b30c9ceae26d0eeb92fe52d (patch) | |
| tree | 2f41f71bff2077360c435c134f1d22217f89958e /tools/perf/util/trace-event-scripting.c | |
| parent | b57c18694ea1641b691fa05ed8af0ce339fa430b (diff) | |
xen-gntdev: Avoid double-mapping memory
If an already-mapped area of the device was mapped into userspace a
second time, a hypercall was incorrectly made to remap the memory
again. Avoid the hypercall on later mmap calls, and fail the mmap call
if a writable mapping is attempted on a read-only range.
Signed-off-by: Daniel De Graaf <[email protected]>
Signed-off-by: Konrad Rzeszutek Wilk <[email protected]>
Diffstat (limited to 'tools/perf/util/trace-event-scripting.c')
0 files changed, 0 insertions, 0 deletions