diff options
| author | Nicolas Lacasse <nlacasse@google.com> | 2020-08-21 14:28:27 -0700 |
|---|---|---|
| committer | gVisor bot <gvisor-bot@google.com> | 2020-08-21 14:30:03 -0700 |
| commit | 5ec3d4ed3e3cda8944e851ef845f6d275999858a (patch) | |
| tree | e09f2887c1bfdaa1733b024276af4923120382c1 /pkg/sentry/syscalls/linux | |
| parent | c9e752b6440cfa78f7bdcd47af4c4f5fe33d57b4 (diff) | |
Make mounts ReadWrite first, then later change to ReadOnly.
This lets us create "synthetic" mountpoint directories in ReadOnly mounts
during VFS setup.
Also add context.WithMountNamespace, as some filesystems (like overlay) require
a MountNamespace on ctx to handle vfs.Filesystem Operations.
PiperOrigin-RevId: 327874971
Diffstat (limited to 'pkg/sentry/syscalls/linux')
| -rw-r--r-- | pkg/sentry/syscalls/linux/vfs2/mount.go | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/pkg/sentry/syscalls/linux/vfs2/mount.go b/pkg/sentry/syscalls/linux/vfs2/mount.go index 4bd5c7ca2..769c9b92f 100644 --- a/pkg/sentry/syscalls/linux/vfs2/mount.go +++ b/pkg/sentry/syscalls/linux/vfs2/mount.go @@ -109,8 +109,8 @@ func Mount(t *kernel.Task, args arch.SyscallArguments) (uintptr, *kernel.Syscall return 0, nil, err } defer target.Release(t) - - return 0, nil, t.Kernel().VFS().MountAt(t, creds, source, &target.pop, fsType, &opts) + _, err = t.Kernel().VFS().MountAt(t, creds, source, &target.pop, fsType, &opts) + return 0, nil, err } // Umount2 implements Linux syscall umount2(2). |