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| author |   Aharon Landau <aharonl@nvidia.com> | 2022-07-26 10:19:08 +0300 |
|---|---|---|
| committer |   Jason Gunthorpe <jgg@nvidia.com> | 2022-07-27 14:45:48 -0300 |
| commit | 86457a92df1bebdcd8e20afa286427e4b525aa08 (patch) | |
| tree | e9ba1f9ea7fe6385d947d98e8ccd6954d8ad035e /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | RDMA/mlx5: Replace ent->lock with xa_lock (diff) | |
| download | linux-dev-86457a92df1bebdcd8e20afa286427e4b525aa08.tar.xz linux-dev-86457a92df1bebdcd8e20afa286427e4b525aa08.zip | |
RDMA/mlx5: Replace cache list with Xarray
The Xarray allows us to store the cached mkeys in memory efficient way.
Entries are reserved in the Xarray using xa_cmpxchg before calling to the
upcoming callbacks to avoid allocations in interrupt context. The
xa_cmpxchg can sleep when using GFP_KERNEL, so we call it in a loop to
ensure one reserved entry for each process trying to reserve.
Link: https://lore.kernel.org/r/20220726071911.122765-3-michaelgur@nvidia.com
Signed-off-by: Aharon Landau <aharonl@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions