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| author | David Howells | 2018-11-05 18:40:30 +0100 |
|---|---|---|
| committer | Al Viro | 2019-03-20 23:49:06 +0100 |
| commit | 2db154b3ea8e14b04fee23e3fdfd5e9d17fbc6ae (patch) | |
| tree | b7c4c1f2497b6c04b3481fdfd461c652befbca6d /include/uapi/linux/mount.h | |
| parent | vfs: syscall: Add open_tree(2) to reference or clone a mount (diff) | |
| download | kernel-qcow2-linux-2db154b3ea8e14b04fee23e3fdfd5e9d17fbc6ae.tar.gz kernel-qcow2-linux-2db154b3ea8e14b04fee23e3fdfd5e9d17fbc6ae.tar.xz kernel-qcow2-linux-2db154b3ea8e14b04fee23e3fdfd5e9d17fbc6ae.zip | |
vfs: syscall: Add move_mount(2) to move mounts around
Add a move_mount() system call that will move a mount from one place to
another and, in the next commit, allow to attach an unattached mount tree.
The new system call looks like the following:
int move_mount(int from_dfd, const char *from_path,
int to_dfd, const char *to_path,
unsigned int flags);
Signed-off-by: David Howells <dhowells@redhat.com>
cc: linux-api@vger.kernel.org
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'include/uapi/linux/mount.h')
| -rw-r--r-- | include/uapi/linux/mount.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/include/uapi/linux/mount.h b/include/uapi/linux/mount.h index fd7ae2e7eccf..3634e065836c 100644 --- a/include/uapi/linux/mount.h +++ b/include/uapi/linux/mount.h @@ -61,4 +61,15 @@ #define OPEN_TREE_CLONE 1 /* Clone the target tree and attach the clone */ #define OPEN_TREE_CLOEXEC O_CLOEXEC /* Close the file on execve() */ +/* + * move_mount() flags. + */ +#define MOVE_MOUNT_F_SYMLINKS 0x00000001 /* Follow symlinks on from path */ +#define MOVE_MOUNT_F_AUTOMOUNTS 0x00000002 /* Follow automounts on from path */ +#define MOVE_MOUNT_F_EMPTY_PATH 0x00000004 /* Empty from path permitted */ +#define MOVE_MOUNT_T_SYMLINKS 0x00000010 /* Follow symlinks on to path */ +#define MOVE_MOUNT_T_AUTOMOUNTS 0x00000020 /* Follow automounts on to path */ +#define MOVE_MOUNT_T_EMPTY_PATH 0x00000040 /* Empty to path permitted */ +#define MOVE_MOUNT__MASK 0x00000077 + #endif /* _UAPI_LINUX_MOUNT_H */ |