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path: root/pkg/sentry/fs/inotify_watch.go
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Diffstat (limited to 'pkg/sentry/fs/inotify_watch.go')
-rw-r--r--pkg/sentry/fs/inotify_watch.go12
1 files changed, 7 insertions, 5 deletions
diff --git a/pkg/sentry/fs/inotify_watch.go b/pkg/sentry/fs/inotify_watch.go
index b83544c9f..d33e7e498 100644
--- a/pkg/sentry/fs/inotify_watch.go
+++ b/pkg/sentry/fs/inotify_watch.go
@@ -76,15 +76,17 @@ func isRenameEvent(eventMask uint32) bool {
// Notify queues a new event on this watch.
func (w *Watch) Notify(name string, events uint32, cookie uint32) {
- unmaskableBits := ^uint32(0) &^ linux.IN_ALL_EVENTS
- effectiveMask := unmaskableBits | atomic.LoadUint32(&w.mask)
- matchedEvents := effectiveMask & events
-
- if matchedEvents == 0 {
+ mask := atomic.LoadUint32(&w.mask)
+ if mask&events == 0 {
// We weren't watching for this event.
return
}
+ // Event mask should include bits matched from the watch plus all control
+ // event bits.
+ unmaskableBits := ^uint32(0) &^ linux.IN_ALL_EVENTS
+ effectiveMask := unmaskableBits | mask
+ matchedEvents := effectiveMask & events
w.owner.queueEvent(newEvent(w.wd, name, matchedEvents, cookie))
}