From 2db154b3ea8e14b04fee23e3fdfd5e9d17fbc6ae Mon Sep 17 00:00:00 2001 From: David Howells Date: Mon, 5 Nov 2018 17:40:30 +0000 Subject: 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 cc: linux-api@vger.kernel.org Signed-off-by: Al Viro --- security/security.c | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'security') diff --git a/security/security.c b/security/security.c index 23cbb1a295a3..5b3d23e427b3 100644 --- a/security/security.c +++ b/security/security.c @@ -866,6 +866,11 @@ int security_add_mnt_opt(const char *option, const char *val, int len, } EXPORT_SYMBOL(security_add_mnt_opt); +int security_move_mount(const struct path *from_path, const struct path *to_path) +{ + return call_int_hook(move_mount, 0, from_path, to_path); +} + int security_inode_alloc(struct inode *inode) { int rc = lsm_inode_alloc(inode); -- cgit