linux/kernel/nscommon.c
Christian Brauner 86cdbae5c6
mnt: simplify ns_common_init() handling
Assign the reserved MNT_NS_ANON_INO sentinel to anonymous mount
namespaces and cleanup the initial mount ns allocation. This is just a
preparatory patch and the ns->inum check in ns_common_init() will be
dropped in the next patch.

Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Christian Brauner <brauner@kernel.org>
2025-09-19 14:26:18 +02:00

21 lines
450 B
C

// SPDX-License-Identifier: GPL-2.0-only
#include <linux/ns_common.h>
int ns_common_init(struct ns_common *ns, const struct proc_ns_operations *ops,
bool alloc_inum)
{
if (alloc_inum && !ns->inum) {
int ret;
ret = proc_alloc_inum(&ns->inum);
if (ret)
return ret;
}
refcount_set(&ns->count, 1);
ns->stashed = NULL;
ns->ops = ops;
ns->ns_id = 0;
RB_CLEAR_NODE(&ns->ns_tree_node);
INIT_LIST_HEAD(&ns->ns_list_node);
return 0;
}