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authorLeon Romanovsky <[email protected]>2018-03-21 17:12:42 +0200
committerJason Gunthorpe <[email protected]>2018-03-22 12:42:48 -0600
commit03286030ac0420c759fa25f5b976e40293bccaaf (patch)
tree58cf69276be4ed2e614a05008a65cecb8647cd56 /tools/perf/scripts/python
parente95955773d4357a0b09a43128352047afce8f35b (diff)
RDMA/restrack: Remove ambiguity in resource track clean logic
The restrack clean routine had simple, but powerful WARN_ON check to see if all resources are cleared prior to releasing device. The WARN_ON check performed very well, but lack of information which device caused to resource leak, the object type and origin made debug to be fun and challenging at the same time. The fact that all dumps were the same because restrack_clean() is called in dealloc() didn't help either. So let's fix spelling error and convert WARN_ON to be more debug friendly. The dmesg cut below gives example of how the output will look output for the case fixed in patch [1] [ 438.421372] restrack: ------------[ cut here ]------------ [ 438.423448] restrack: BUG: RESTRACK detected leak of resources on mlx5_2 [ 438.425600] restrack: Kernel PD object allocated by mlx5_ib is not freed [ 438.427753] restrack: Kernel CQ object allocated by mlx5_ib is not freed [ 438.429660] restrack: ------------[ cut here ]------------ [1] https://patchwork.kernel.org/patch/10298695/ Cc: Michal Kalderon <[email protected]> Cc: Chuck Lever <[email protected]> Reviewed-by: Mark Bloch <[email protected]> Signed-off-by: Leon Romanovsky <[email protected]> Signed-off-by: Jason Gunthorpe <[email protected]>
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