diff options
| author | Lidong Chen <[email protected]> | 2018-05-08 16:50:16 +0800 |
|---|---|---|
| committer | Jason Gunthorpe <[email protected]> | 2018-05-15 17:09:10 -0600 |
| commit | 8e907ed4882714fd13cfe670681fc6cb5284c780 (patch) | |
| tree | 5ce4bf10cbe8129f41020043768d3958eebb2eff /tools/perf/scripts/python/bin/export-to-postgresql-report | |
| parent | 3d69191086fc87f202c79eb8873b9c82c2bb065a (diff) | |
IB/umem: Use the correct mm during ib_umem_release
User-space may invoke ibv_reg_mr and ibv_dereg_mr in different threads.
If ibv_dereg_mr is called after the thread which invoked ibv_reg_mr has
exited, get_pid_task will return NULL and ib_umem_release will not
decrease mm->pinned_vm.
Instead of using threads to locate the mm, use the overall tgid from the
ib_ucontext struct instead. This matches the behavior of ODP and
disassociate in handling the mm of the process that called ibv_reg_mr.
Cc: <[email protected]>
Fixes: 87773dd56d54 ("IB: ib_umem_release() should decrement mm->pinned_vm from ib_umem_get")
Signed-off-by: Lidong Chen <[email protected]>
Signed-off-by: Jason Gunthorpe <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/bin/export-to-postgresql-report')
0 files changed, 0 insertions, 0 deletions