lkml.org 
[lkml]   [2015]   [Sep]   [7]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    Patch in this message
    /
    From
    Subject[PATCH 4/7] devcg: Added rdma resource tracker object per task
    Date
    Added RDMA device resource tracking object per task.
    Added comments to capture usage of task lock by device cgroup
    for rdma.

    Signed-off-by: Parav Pandit <pandit.parav@gmail.com>
    ---
    include/linux/sched.h | 12 +++++++++++-
    1 file changed, 11 insertions(+), 1 deletion(-)

    diff --git a/include/linux/sched.h b/include/linux/sched.h
    index ae21f15..a5f79b6 100644
    --- a/include/linux/sched.h
    +++ b/include/linux/sched.h
    @@ -1334,6 +1334,8 @@ union rcu_special {
    };
    struct rcu_node;

    +struct task_rdma_res_counter;
    +
    enum perf_event_task_context {
    perf_invalid_context = -1,
    perf_hw_context = 0,
    @@ -1637,6 +1639,14 @@ struct task_struct {
    struct css_set __rcu *cgroups;
    /* cg_list protected by css_set_lock and tsk->alloc_lock */
    struct list_head cg_list;
    +
    +#ifdef CONFIG_CGROUP_RDMA_RESOURCE
    + /* RDMA resource accounting counters, allocated only
    + * when RDMA resources are created by a task.
    + */
    + struct task_rdma_res_counter *rdma_res_counter;
    +#endif
    +
    #endif
    #ifdef CONFIG_FUTEX
    struct robust_list_head __user *robust_list;
    @@ -2676,7 +2686,7 @@ static inline int thread_group_empty(struct task_struct *p)
    * Protects ->fs, ->files, ->mm, ->group_info, ->comm, keyring
    * subscriptions and synchronises with wait4(). Also used in procfs. Also
    * pins the final release of task.io_context. Also protects ->cpuset and
    - * ->cgroup.subsys[]. And ->vfork_done.
    + * ->cgroup.subsys[]. Also projtects ->vfork_done and ->rdma_res_counter.
    *
    * Nests both inside and outside of read_lock(&tasklist_lock).
    * It must not be nested with write_lock_irq(&tasklist_lock),
    --
    1.8.3.1


    \
     
     \ /
      Last update: 2015-09-07 23:01    [W:8.258 / U:0.012 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site