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| author | Al Viro <viro@zeniv.linux.org.uk> | 2010-02-05 14:30:46 (GMT) |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2010-03-03 19:08:00 (GMT) |
| commit | 8089352a13b785d4e0df63d87bd2b71c76bb9aee (patch) | |
| tree | e84db2c2a5c2095091d2012c00078023b90a3490 | |
| parent | d498b25a4f877be535246c4e5b6ee5890781a477 (diff) | |
| download | linux-8089352a13b785d4e0df63d87bd2b71c76bb9aee.tar.xz | |
Mirror MS_KERNMOUNT in ->mnt_flags
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| -rw-r--r-- | fs/namespace.c | 2 | ||||
| -rw-r--r-- | fs/super.c | 3 | ||||
| -rw-r--r-- | include/linux/mount.h | 2 |
3 files changed, 6 insertions, 1 deletions
diff --git a/fs/namespace.c b/fs/namespace.c index b0b15cc..ffa3843 100644 --- a/fs/namespace.c +++ b/fs/namespace.c @@ -1701,7 +1701,7 @@ int do_add_mount(struct vfsmount *newmnt, struct path *path, { int err; - mnt_flags &= ~(MNT_SHARED | MNT_WRITE_HOLD); + mnt_flags &= ~(MNT_SHARED | MNT_WRITE_HOLD | MNT_INTERNAL); down_write(&namespace_sem); /* Something was mounted here while we slept */ @@ -937,6 +937,9 @@ vfs_kern_mount(struct file_system_type *type, int flags, const char *name, void if (!mnt) goto out; + if (flags & MS_KERNMOUNT) + mnt->mnt_flags = MNT_INTERNAL; + if (data && !(type->fs_flags & FS_BINARY_MOUNTDATA)) { secdata = alloc_secdata(); if (!secdata) diff --git a/include/linux/mount.h b/include/linux/mount.h index 1638961..ca726eb 100644 --- a/include/linux/mount.h +++ b/include/linux/mount.h @@ -45,6 +45,8 @@ struct mnt_namespace; #define MNT_PROPAGATION_MASK (MNT_SHARED | MNT_UNBINDABLE) +#define MNT_INTERNAL 0x4000 + struct vfsmount { struct list_head mnt_hash; struct vfsmount *mnt_parent; /* fs we are mounted on */ |