forked from luck/tmp_suning_uos_patched
RDMA/restrack: Make is_visible_in_pid_ns() as an API
Remove is_visible_in_pid_ns() from nldev.c and make it as a restrack API, so that it can be taken advantage by other parts like counter. Signed-off-by: Mark Zhang <markz@mellanox.com> Reviewed-by: Majd Dibbiny <majd@mellanox.com> Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
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699a9c540a
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6a6c306a09
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@ -1002,17 +1002,6 @@ static const struct nldev_fill_res_entry fill_entries[RDMA_RESTRACK_MAX] = {
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},
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};
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static bool is_visible_in_pid_ns(struct rdma_restrack_entry *res)
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{
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/*
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* 1. Kern resources should be visible in init name space only
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* 2. Present only resources visible in the current namespace
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*/
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if (rdma_is_kernel_res(res))
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return task_active_pid_ns(current) == &init_pid_ns;
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return task_active_pid_ns(current) == task_active_pid_ns(res->task);
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}
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static int res_get_common_doit(struct sk_buff *skb, struct nlmsghdr *nlh,
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struct netlink_ext_ack *extack,
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enum rdma_restrack_type res_type)
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@ -1057,7 +1046,7 @@ static int res_get_common_doit(struct sk_buff *skb, struct nlmsghdr *nlh,
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goto err;
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}
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if (!is_visible_in_pid_ns(res)) {
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if (!rdma_is_visible_in_pid_ns(res)) {
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ret = -ENOENT;
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goto err_get;
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}
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@ -1169,7 +1158,7 @@ static int res_get_common_dumpit(struct sk_buff *skb,
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* objects.
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*/
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xa_for_each(&rt->xa, id, res) {
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if (!is_visible_in_pid_ns(res))
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if (!rdma_is_visible_in_pid_ns(res))
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continue;
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if (idx < start || !rdma_restrack_get(res))
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@ -349,3 +349,16 @@ void rdma_restrack_del(struct rdma_restrack_entry *res)
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}
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}
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EXPORT_SYMBOL(rdma_restrack_del);
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bool rdma_is_visible_in_pid_ns(struct rdma_restrack_entry *res)
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{
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/*
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* 1. Kern resources should be visible in init
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* namespace only
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* 2. Present only resources visible in the current
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* namespace
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*/
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if (rdma_is_kernel_res(res))
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return task_active_pid_ns(current) == &init_pid_ns;
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return task_active_pid_ns(current) == task_active_pid_ns(res->task);
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}
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@ -27,4 +27,5 @@ int rdma_restrack_init(struct ib_device *dev);
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void rdma_restrack_clean(struct ib_device *dev);
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void rdma_restrack_attach_task(struct rdma_restrack_entry *res,
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struct task_struct *task);
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bool rdma_is_visible_in_pid_ns(struct rdma_restrack_entry *res);
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#endif /* _RDMA_CORE_RESTRACK_H_ */
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