diff options
| author | David Matlack <[email protected]> | 2022-01-19 23:07:24 +0000 |
|---|---|---|
| committer | Paolo Bonzini <[email protected]> | 2022-02-10 13:50:37 -0500 |
| commit | 3255530ab191cf75caa2cfc52fe984f5c4c44c74 (patch) | |
| tree | 6a70a594c8e26961c8e0aea0bc701b3f0aa3f145 /tools/perf/scripts/python/bin/stackcollapse-record | |
| parent | 1346bbb6b4189bc355417ef4d021011ac7e8d239 (diff) | |
KVM: x86/mmu: Automatically update iter->old_spte if cmpxchg fails
Consolidate a bunch of code that was manually re-reading the spte if the
cmpxchg failed. There is no extra cost of doing this because we already
have the spte value as a result of the cmpxchg (and in fact this
eliminates re-reading the spte), and none of the call sites depend on
iter->old_spte retaining the stale spte value.
Reviewed-by: Ben Gardon <[email protected]>
Reviewed-by: Peter Xu <[email protected]>
Reviewed-by: Sean Christopherson <[email protected]>
Signed-off-by: David Matlack <[email protected]>
Message-Id: <[email protected]>
Signed-off-by: Paolo Bonzini <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/bin/stackcollapse-record')
0 files changed, 0 insertions, 0 deletions