RE: [PATCH rdma-next v3 1/7] RDMA/restrack: Add general infrastructure to track RDMA resources

["Steve Wise" <swise-7bPotxP6k4+P2YhJcF5u+vpXobYPEAuW@public.gmane.org>]

> From: Leon Romanovsky <leonro-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
> 
> The RDMA subsystem has very strict set of objects to work on it,
> but it completely lacks tracking facilities and no visibility of
> resource utilization.
> 
> The following patch adds such infrastructure to keep track of RDMA
> resources to help with debugging of user space applications. The primary
> user of this infrastructure is RDMA nldev netlink (following patches),
> but it is not limited too.
> 
> At this stage, the main three objects (PD, CQ and QP) are added,
> and more will be added later.
> 
> There are four new functions in use by RDMA/core:
>  * rdma_restrack_init(...)   - initializes restrack database
>  * rdma_restrack_clean(...)  - cleans restrack database
>  * rdma_restrack_add(...)    - adds object to be tracked
>  * rdma_restrack_del(...)    - removes object from tracking
> 
> 3 functions and one iterator visible to kernel users:
>  * rdma_restrack_count(...) - returns number of allocated objects of
> 			      specific type
>  * rdma_restrack_lock(...)  - Lock primitive to protect access to list
> 			      of resources
>  * rdma_restrack_unlock(...)- Unlock primitive to protect access to list
> 			      of resources
>  * for_each_res_safe(...)   - iterates over all relevant objects in
>    the restrack database.
> 
> Reviewed-by: Mark Bloch <markb-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
> Signed-off-by: Leon Romanovsky <leonro-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>

Reviewed-by: Steve Wise <swise-7bPotxP6k4+P2YhJcF5u+vpXobYPEAuW@public.gmane.org>


--
To unsubscribe from this list: send the line "unsubscribe linux-rdma" in
the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html