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| author | Nicolin Chen <[email protected]> | 2023-07-28 06:33:25 +0000 |
|---|---|---|
| committer | Jason Gunthorpe <[email protected]> | 2023-07-28 16:31:24 +0000 |
| commit | 9227da7816dd1a42e20d41e2244cb63c205477ca (patch) | |
| tree | 00a7579b73a263b3bd7d1085df972df2e868c855 /tools/perf/scripts/python/sctop.py | |
| parent | iommufd: Allow passing in iopt_access_list_id to iopt_remove_access() (diff) | |
| download | kernel-9227da7816dd1a42e20d41e2244cb63c205477ca.tar.gz kernel-9227da7816dd1a42e20d41e2244cb63c205477ca.zip | |
iommufd: Add iommufd_access_change_ioas(_id) helpers
The complication of the mutex and refcount will be amplified after we
introduce the replace support for accesses. So, add a preparatory change
of a constitutive helper iommufd_access_change_ioas() and its wrapper
iommufd_access_change_ioas_id(). They can simply take care of existing
iommufd_access_attach() and iommufd_access_detach(), properly sequencing
the refcount puts so that they are truely at the end of the sequence after
we know the IOAS pointer is not required any more.
Link: https://lore.kernel.org/r/da0c462532193b447329c4eb975a596f47e49b70.1690523699.git.nicolinc@nvidia.com
Suggested-by: Jason Gunthorpe <[email protected]>
Reviewed-by: Kevin Tian <[email protected]>
Signed-off-by: Nicolin Chen <[email protected]>
Signed-off-by: Jason Gunthorpe <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/sctop.py')
0 files changed, 0 insertions, 0 deletions