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authorNicolas Lacasse <nlacasse@google.com>2021-08-27 13:09:28 -0700
committergVisor bot <gvisor-bot@google.com>2021-08-27 13:18:49 -0700
commitf7281c6cb9bbf3e5757adf52a7820499b5a7483b (patch)
tree58bcf863ec15020cadfc87fd6157ac9b057b1a9a /pkg/sentry/mm
parent0db19ea910def9848d0f53f65f993270ed579a8f (diff)
Fix lock order violations: mm.mappingMu > Task.mu.
Document this ordering in mm/mm.go. PiperOrigin-RevId: 393413203
Diffstat (limited to 'pkg/sentry/mm')
-rw-r--r--pkg/sentry/mm/mm.go1
1 files changed, 1 insertions, 0 deletions
diff --git a/pkg/sentry/mm/mm.go b/pkg/sentry/mm/mm.go
index 57969b26c..0fca59b64 100644
--- a/pkg/sentry/mm/mm.go
+++ b/pkg/sentry/mm/mm.go
@@ -28,6 +28,7 @@
// memmap.File locks
// mm.aioManager.mu
// mm.AIOContext.mu
+// kernel.TaskSet.mu
//
// Only mm.MemoryManager.Fork is permitted to lock mm.MemoryManager.activeMu in
// multiple mm.MemoryManagers, as it does so in a well-defined order (forked