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authorgVisor bot <gvisor-bot@google.com>2020-05-13 17:56:48 +0000
committergVisor bot <gvisor-bot@google.com>2020-05-13 17:56:48 +0000
commit33e16473772cfb7134f9b202448be8c998706f2d (patch)
treef67188a62a022624e7e26a3e741a90bcae449e30 /runsc/boot
parentddecfc313b8ffa6b611e0a701ebfd3e15b5aa4a3 (diff)
parentd84607762889d999f93b89e64e09d2a4dda63bf7 (diff)
Merge release-20200422.0-297-gd846077 (automated)
Diffstat (limited to 'runsc/boot')
-rw-r--r--runsc/boot/config.go6
1 files changed, 4 insertions, 2 deletions
diff --git a/runsc/boot/config.go b/runsc/boot/config.go
index 6d6a705f8..bcec7e4db 100644
--- a/runsc/boot/config.go
+++ b/runsc/boot/config.go
@@ -241,8 +241,10 @@ type Config struct {
// ReferenceLeakMode sets reference leak check mode
ReferenceLeakMode refs.LeakMode
- // OverlayfsStaleRead causes cached FDs to reopen after a file is opened for
- // write to workaround overlayfs limitation on kernels before 4.19.
+ // OverlayfsStaleRead instructs the sandbox to assume that the root mount
+ // is on a Linux overlayfs mount, which does not necessarily preserve
+ // coherence between read-only and subsequent writable file descriptors
+ // representing the "same" file.
OverlayfsStaleRead bool
// TestOnlyAllowRunAsCurrentUserWithoutChroot should only be used in