From: Leon Romanovsky <leon@kernel.org> To: Doug Ledford <dledford@redhat.com>, Jason Gunthorpe <jgg@mellanox.com> Cc: Leon Romanovsky <leonro@mellanox.com>, RDMA mailing list <linux-rdma@vger.kernel.org>, Majd Dibbiny <majd@mellanox.com>, Mark Zhang <markz@mellanox.com>, Saeed Mahameed <saeedm@mellanox.com>, linux-netdev <netdev@vger.kernel.org> Subject: [PATCH rdma-next v4 03/17] RDMA/restrack: Add an API to attach a task to a resource Date: Tue, 18 Jun 2019 20:26:11 +0300 Message-ID: <20190618172625.13432-4-leon@kernel.org> (raw) In-Reply-To: <20190618172625.13432-1-leon@kernel.org> From: Mark Zhang <markz@mellanox.com> Add rdma_restrack_attach_task() which is able to attach a task other then "current" to a resource. Signed-off-by: Mark Zhang <markz@mellanox.com> Reviewed-by: Majd Dibbiny <majd@mellanox.com> Signed-off-by: Leon Romanovsky <leonro@mellanox.com> --- drivers/infiniband/core/restrack.c | 14 ++++++++++++++ drivers/infiniband/core/restrack.h | 2 ++ 2 files changed, 16 insertions(+) diff --git a/drivers/infiniband/core/restrack.c b/drivers/infiniband/core/restrack.c index 95573f292aae..3714634ae296 100644 --- a/drivers/infiniband/core/restrack.c +++ b/drivers/infiniband/core/restrack.c @@ -194,6 +194,20 @@ void rdma_restrack_set_task(struct rdma_restrack_entry *res, } EXPORT_SYMBOL(rdma_restrack_set_task); +/** + * rdma_restrack_attach_task() - attach the task onto this resource + * @res: resource entry + * @task: the task to attach, the current task will be used if it is NULL. + */ +void rdma_restrack_attach_task(struct rdma_restrack_entry *res, + struct task_struct *task) +{ + if (res->task) + put_task_struct(res->task); + get_task_struct(task); + res->task = task; +} + static void rdma_restrack_add(struct rdma_restrack_entry *res) { struct ib_device *dev = res_to_dev(res); diff --git a/drivers/infiniband/core/restrack.h b/drivers/infiniband/core/restrack.h index 09a1fbdf578e..d084e5f89849 100644 --- a/drivers/infiniband/core/restrack.h +++ b/drivers/infiniband/core/restrack.h @@ -25,4 +25,6 @@ struct rdma_restrack_root { 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); #endif /* _RDMA_CORE_RESTRACK_H_ */ -- 2.20.1
next prev parent reply index Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top 2019-06-18 17:26 [PATCH rdma-next v4 00/17] Statistics counter support Leon Romanovsky 2019-06-18 17:26 ` [PATCH mlx5-next v4 01/17] net/mlx5: Add rts2rts_qp_counters_set_id field in hca cap Leon Romanovsky 2019-06-18 18:47 ` Saeed Mahameed 2019-06-18 17:26 ` [PATCH rdma-next v4 02/17] RDMA/restrack: Introduce statistic counter Leon Romanovsky 2019-06-18 17:26 ` Leon Romanovsky [this message] 2019-06-18 17:26 ` [PATCH rdma-next v4 04/17] RDMA/restrack: Make is_visible_in_pid_ns() as an API Leon Romanovsky 2019-06-18 17:26 ` [PATCH rdma-next v4 05/17] RDMA/counter: Add set/clear per-port auto mode support Leon Romanovsky 2019-06-18 17:26 ` [PATCH rdma-next v4 06/17] RDMA/counter: Add "auto" configuration " Leon Romanovsky 2019-06-30 0:32 ` Jason Gunthorpe 2019-06-30 0:40 ` Jason Gunthorpe 2019-07-01 8:42 ` Leon Romanovsky 2019-06-18 17:26 ` [PATCH mlx5-next v4 07/17] IB/mlx5: Support set qp counter Leon Romanovsky 2019-06-18 18:49 ` Saeed Mahameed 2019-06-18 17:26 ` [PATCH rdma-next v4 08/17] IB/mlx5: Add counter set id as a parameter for mlx5_ib_query_q_counters() Leon Romanovsky 2019-06-18 17:26 ` [PATCH rdma-next v4 09/17] IB/mlx5: Support statistic q counter configuration Leon Romanovsky 2019-06-18 17:26 ` [PATCH rdma-next v4 10/17] RDMA/nldev: Allow counter auto mode configration through RDMA netlink Leon Romanovsky 2019-06-18 17:26 ` [PATCH rdma-next v4 11/17] RDMA/netlink: Implement counter dumpit calback Leon Romanovsky 2019-06-18 17:26 ` [PATCH rdma-next v4 12/17] IB/mlx5: Add counter_alloc_stats() and counter_update_stats() support Leon Romanovsky 2019-06-18 17:26 ` [PATCH rdma-next v4 13/17] RDMA/core: Get sum value of all counters when perform a sysfs stat read Leon Romanovsky 2019-06-18 17:26 ` [PATCH rdma-next v4 14/17] RDMA/counter: Allow manual mode configuration support Leon Romanovsky 2019-06-18 17:26 ` [PATCH rdma-next v4 15/17] RDMA/nldev: Allow counter manual mode configration through RDMA netlink Leon Romanovsky 2019-06-18 17:26 ` [PATCH rdma-next v4 16/17] RDMA/nldev: Allow get counter mode " Leon Romanovsky 2019-06-18 17:26 ` [PATCH rdma-next v4 17/17] RDMA/nldev: Allow get default counter statistics " Leon Romanovsky
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