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-rwxr-xr-xtools/kvm/kvm_stat/kvm_stat8
1 files changed, 8 insertions, 0 deletions
diff --git a/tools/kvm/kvm_stat/kvm_stat b/tools/kvm/kvm_stat/kvm_stat
index e10b90a8917a..b9e8d0def1ab 100755
--- a/tools/kvm/kvm_stat/kvm_stat
+++ b/tools/kvm/kvm_stat/kvm_stat
@@ -766,6 +766,13 @@ class DebugfsProvider(Provider):
self.do_read = True
self.reset()
+ def _verify_paths(self):
+ """Remove invalid paths"""
+ for path in self.paths:
+ if not os.path.exists(os.path.join(PATH_DEBUGFS_KVM, path)):
+ self.paths.remove(path)
+ continue
+
def read(self, reset=0, by_guest=0):
"""Returns a dict with format:'file name / field -> current value'.
@@ -780,6 +787,7 @@ class DebugfsProvider(Provider):
# If no debugfs filtering support is available, then don't read.
if not self.do_read:
return results
+ self._verify_paths()
paths = self.paths
if self._pid == 0: