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author | Akihiro Suda <akihiro.suda.cz@hco.ntt.co.jp> | 2020-09-18 02:16:25 +0900 |
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committer | Akihiro Suda <akihiro.suda.cz@hco.ntt.co.jp> | 2020-09-18 02:22:25 +0900 |
commit | 661786808c8a5249e05672af1f4d9cfaef39b38e (patch) | |
tree | 448e550f29119957d11060226dc8198837770973 /vendor/github.com/moby/sys/mount/sharedsubtree_linux.go | |
parent | 031ddf9c8476202c6b0c810c6c0f6a7a0040c035 (diff) | |
download | podman-661786808c8a5249e05672af1f4d9cfaef39b38e.tar.gz podman-661786808c8a5249e05672af1f4d9cfaef39b38e.tar.bz2 podman-661786808c8a5249e05672af1f4d9cfaef39b38e.zip |
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.go | 73 |
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), "") +} |