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authorBhasker Hariharan <bhaskerh@google.com>2021-03-24 12:08:24 -0700
committergVisor bot <gvisor-bot@google.com>2021-03-24 12:11:44 -0700
commite7ca2a51a89a8ff2c9f5adfdfa5b51be1b3faeb3 (patch)
tree1abf748d2755526978f560abb67f29b6f83496c7 /pkg/sentry/kernel/signalfd
parent72ff6a1cac6ab35132b4f79b1149590e103e5291 (diff)
Add POLLRDNORM/POLLWRNORM support.
On Linux these are meant to be equivalent to POLLIN/POLLOUT. Rather than hack these on in sys_poll etc it felt cleaner to just cleanup the call sites to notify for both events. This is what linux does as well. Fixes #5544 PiperOrigin-RevId: 364859977
Diffstat (limited to 'pkg/sentry/kernel/signalfd')
-rw-r--r--pkg/sentry/kernel/signalfd/signalfd.go4
1 files changed, 2 insertions, 2 deletions
diff --git a/pkg/sentry/kernel/signalfd/signalfd.go b/pkg/sentry/kernel/signalfd/signalfd.go
index 884966120..f58ec4194 100644
--- a/pkg/sentry/kernel/signalfd/signalfd.go
+++ b/pkg/sentry/kernel/signalfd/signalfd.go
@@ -122,8 +122,8 @@ func (s *SignalOperations) Read(ctx context.Context, _ *fs.File, dst usermem.IOS
// Readiness implements waiter.Waitable.Readiness.
func (s *SignalOperations) Readiness(mask waiter.EventMask) waiter.EventMask {
- if mask&waiter.EventIn != 0 && s.target.PendingSignals()&s.Mask() != 0 {
- return waiter.EventIn // Pending signals.
+ if mask&waiter.ReadableEvents != 0 && s.target.PendingSignals()&s.Mask() != 0 {
+ return waiter.ReadableEvents // Pending signals.
}
return 0
}