From 6a6c306a09b5227d51fcc1643c888e316935dfa8 Mon Sep 17 00:00:00 2001 From: Mark Zhang Date: Tue, 2 Jul 2019 13:02:33 +0300 Subject: [PATCH] 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 Reviewed-by: Majd Dibbiny Signed-off-by: Leon Romanovsky Signed-off-by: Jason Gunthorpe --- drivers/infiniband/core/nldev.c | 15 ++------------- drivers/infiniband/core/restrack.c | 13 +++++++++++++ drivers/infiniband/core/restrack.h | 1 + 3 files changed, 16 insertions(+), 13 deletions(-) diff --git a/drivers/infiniband/core/nldev.c b/drivers/infiniband/core/nldev.c index 5499f5629dc2..d9ebfb50962b 100644 --- a/drivers/infiniband/core/nldev.c +++ b/drivers/infiniband/core/nldev.c @@ -1002,17 +1002,6 @@ static const struct nldev_fill_res_entry fill_entries[RDMA_RESTRACK_MAX] = { }, }; -static bool is_visible_in_pid_ns(struct rdma_restrack_entry *res) -{ - /* - * 1. Kern resources should be visible in init name space only - * 2. Present only resources visible in the current namespace - */ - if (rdma_is_kernel_res(res)) - return task_active_pid_ns(current) == &init_pid_ns; - return task_active_pid_ns(current) == task_active_pid_ns(res->task); -} - static int res_get_common_doit(struct sk_buff *skb, struct nlmsghdr *nlh, struct netlink_ext_ack *extack, enum rdma_restrack_type res_type) @@ -1057,7 +1046,7 @@ static int res_get_common_doit(struct sk_buff *skb, struct nlmsghdr *nlh, goto err; } - if (!is_visible_in_pid_ns(res)) { + if (!rdma_is_visible_in_pid_ns(res)) { ret = -ENOENT; goto err_get; } @@ -1169,7 +1158,7 @@ static int res_get_common_dumpit(struct sk_buff *skb, * objects. */ xa_for_each(&rt->xa, id, res) { - if (!is_visible_in_pid_ns(res)) + if (!rdma_is_visible_in_pid_ns(res)) continue; if (idx < start || !rdma_restrack_get(res)) diff --git a/drivers/infiniband/core/restrack.c b/drivers/infiniband/core/restrack.c index 3714634ae296..bddff426ee0f 100644 --- a/drivers/infiniband/core/restrack.c +++ b/drivers/infiniband/core/restrack.c @@ -349,3 +349,16 @@ out: } } EXPORT_SYMBOL(rdma_restrack_del); + +bool rdma_is_visible_in_pid_ns(struct rdma_restrack_entry *res) +{ + /* + * 1. Kern resources should be visible in init + * namespace only + * 2. Present only resources visible in the current + * namespace + */ + if (rdma_is_kernel_res(res)) + return task_active_pid_ns(current) == &init_pid_ns; + return task_active_pid_ns(current) == task_active_pid_ns(res->task); +} diff --git a/drivers/infiniband/core/restrack.h b/drivers/infiniband/core/restrack.h index d084e5f89849..7bd177cc0a61 100644 --- a/drivers/infiniband/core/restrack.h +++ b/drivers/infiniband/core/restrack.h @@ -27,4 +27,5 @@ int rdma_restrack_init(struct ib_device *dev); void rdma_restrack_clean(struct ib_device *dev); void rdma_restrack_attach_task(struct rdma_restrack_entry *res, struct task_struct *task); +bool rdma_is_visible_in_pid_ns(struct rdma_restrack_entry *res); #endif /* _RDMA_CORE_RESTRACK_H_ */