linux-dev - Linux kernel development work

Age	Commit message (Collapse)	Author	Files	Lines
2019-02-14	lib: objagg: fix handling of object with 0 users when assembling hints	Jiri Pirko	1	-3/+5
	It is possible that there might be an originally parent object with 0 direct users that is in hints no longer considered as parent. Then the weight of this object is 0 and current code ignores him. That's why the total amount of hint objects might be lower than for the original objagg and WARN_ON is hit. Fix this be considering 0 weight valid. Fixes: 9069a3817d82 ("lib: objagg: implement optimization hints assembly and use hints for object creation") Signed-off-by: Jiri Pirko <jiri@mellanox.com> Reviewed-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-13	lib: objagg: Fix an error code in objagg_hints_get()	Dan Carpenter	1	-1/+3
	We need to set the error code on this path otherwise we return ERR_PTR(0) which would result in a NULL dereference in the caller. Fixes: 9069a3817d82 ("lib: objagg: implement optimization hints assembly and use hints for object creation") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Acked-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-08	lib: objagg: add root count to stats	Jiri Pirko	1	-0/+4
	Count number of roots and add it to stats. It is handy for the library user to have this stats available as it can act upon it without counting roots itself. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-08	lib: objagg: implement optimization hints assembly and use hints for object creation	Jiri Pirko	1	-13/+560
	Implement simple greedy algo to find more optimized root-delta tree for a given objagg instance. This "hints" can be used by a driver to: 1) check if the hints are better (driver's choice) than the original objagg tree. Driver does comparison of objagg stats and hints stats. 2) use the hints to create a new objagg instance which will construct the root-delta tree according to the passed hints. Currently, only a simple greedy algorithm is implemented. Basically it finds the roots according to the maximal possible user count including deltas. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-08	lib: objagg: fix typo in objagg_stats_put() docstring	Jiri Pirko	1	-1/+1
	Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-15	lib: introduce initial implementation of object aggregation manager	Jiri Pirko	1	-0/+501
	This lib tracks objects which could be of two types: 1) root object 2) nested object - with a "delta" which differentiates it from the associated root object The objects are tracked by a hashtable and reference-counted. User is responsible of implementing callbacks to create/destroy root entity related to each root object and callback to create/destroy nested object delta. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>