linux: drop MS_REC for readonly remount

giuseppe · giuseppe · commit 41aa764010f7 · 2020-11-06T11:36:50.000+01:00
it has no effect.

Signed-off-by: Giuseppe Scrivano &lt;gscrivan@redhat.com&gt;
diff --git a/libcontainer/rootfs_linux.go b/libcontainer/rootfs_linux.go
@@ -741,7 +741,7 @@ func prepareRoot(config *configs.Config) error {
 }
 
 func setReadonly() error {
-	flags := uintptr(unix.MS_BIND | unix.MS_REMOUNT | unix.MS_RDONLY | unix.MS_REC)
+	flags := uintptr(unix.MS_BIND | unix.MS_REMOUNT | unix.MS_RDONLY)
 
 	err := unix.Mount("", "/", "", flags, "")
 	if err == nil {

Original file line number	Diff line number	Diff line change
`@@ -741,7 +741,7 @@ func prepareRoot(config *configs.Config) error {`
`741`	`741`	`}`
`742`	`742`
`743`	`743`	`func setReadonly() error {`
`744`		`- flags := uintptr(unix.MS_BIND \| unix.MS_REMOUNT \| unix.MS_RDONLY \| unix.MS_REC)`
	`744`	`+ flags := uintptr(unix.MS_BIND \| unix.MS_REMOUNT \| unix.MS_RDONLY)`
`745`	`745`
`746`	`746`	`err := unix.Mount("", "/", "", flags, "")`
`747`	`747`	`if err == nil {`