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authorAkihiro Suda <akihiro.suda.cz@hco.ntt.co.jp>2020-09-18 02:16:25 +0900
committerAkihiro Suda <akihiro.suda.cz@hco.ntt.co.jp>2020-09-18 02:22:25 +0900
commit661786808c8a5249e05672af1f4d9cfaef39b38e (patch)
tree448e550f29119957d11060226dc8198837770973 /vendor/github.com/moby/sys/mount/sharedsubtree_linux.go
parent031ddf9c8476202c6b0c810c6c0f6a7a0040c035 (diff)
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update github.com/docker/docker and relevant deps
Signed-off-by: Akihiro Suda <akihiro.suda.cz@hco.ntt.co.jp>
Diffstat (limited to 'vendor/github.com/moby/sys/mount/sharedsubtree_linux.go')
-rw-r--r--vendor/github.com/moby/sys/mount/sharedsubtree_linux.go73
1 files changed, 73 insertions, 0 deletions
diff --git a/vendor/github.com/moby/sys/mount/sharedsubtree_linux.go b/vendor/github.com/moby/sys/mount/sharedsubtree_linux.go
new file mode 100644
index 000000000..948e6bacd
--- /dev/null
+++ b/vendor/github.com/moby/sys/mount/sharedsubtree_linux.go
@@ -0,0 +1,73 @@
+package mount
+
+import "github.com/moby/sys/mountinfo"
+
+// MakeShared ensures a mounted filesystem has the SHARED mount option enabled.
+// See the supported options in flags.go for further reference.
+func MakeShared(mountPoint string) error {
+ return ensureMountedAs(mountPoint, SHARED)
+}
+
+// MakeRShared ensures a mounted filesystem has the RSHARED mount option enabled.
+// See the supported options in flags.go for further reference.
+func MakeRShared(mountPoint string) error {
+ return ensureMountedAs(mountPoint, RSHARED)
+}
+
+// MakePrivate ensures a mounted filesystem has the PRIVATE mount option enabled.
+// See the supported options in flags.go for further reference.
+func MakePrivate(mountPoint string) error {
+ return ensureMountedAs(mountPoint, PRIVATE)
+}
+
+// MakeRPrivate ensures a mounted filesystem has the RPRIVATE mount option
+// enabled. See the supported options in flags.go for further reference.
+func MakeRPrivate(mountPoint string) error {
+ return ensureMountedAs(mountPoint, RPRIVATE)
+}
+
+// MakeSlave ensures a mounted filesystem has the SLAVE mount option enabled.
+// See the supported options in flags.go for further reference.
+func MakeSlave(mountPoint string) error {
+ return ensureMountedAs(mountPoint, SLAVE)
+}
+
+// MakeRSlave ensures a mounted filesystem has the RSLAVE mount option enabled.
+// See the supported options in flags.go for further reference.
+func MakeRSlave(mountPoint string) error {
+ return ensureMountedAs(mountPoint, RSLAVE)
+}
+
+// MakeUnbindable ensures a mounted filesystem has the UNBINDABLE mount option
+// enabled. See the supported options in flags.go for further reference.
+func MakeUnbindable(mountPoint string) error {
+ return ensureMountedAs(mountPoint, UNBINDABLE)
+}
+
+// MakeRUnbindable ensures a mounted filesystem has the RUNBINDABLE mount
+// option enabled. See the supported options in flags.go for further reference.
+func MakeRUnbindable(mountPoint string) error {
+ return ensureMountedAs(mountPoint, RUNBINDABLE)
+}
+
+// MakeMount ensures that the file or directory given is a mount point,
+// bind mounting it to itself it case it is not.
+func MakeMount(mnt string) error {
+ mounted, err := mountinfo.Mounted(mnt)
+ if err != nil {
+ return err
+ }
+ if mounted {
+ return nil
+ }
+
+ return mount(mnt, mnt, "none", uintptr(BIND), "")
+}
+
+func ensureMountedAs(mnt string, flags int) error {
+ if err := MakeMount(mnt); err != nil {
+ return err
+ }
+
+ return mount("", mnt, "none", uintptr(flags), "")
+}