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| author |   Jason Gunthorpe <jgg@mellanox.com> | 2018-09-16 20:48:11 +0300 |
|---|---|---|
| committer |   Doug Ledford <dledford@redhat.com> | 2018-09-21 11:58:36 -0400 |
| commit | 56ac9dd9177ce451ac8176311915b29e8b5f0ac2 (patch) | |
| tree | 0eb46c407ac53d9192c6a73a56a6c581e39845b8 /include/rdma/ib_umem_odp.h | |
| parent | RDMA/umem: Handle a half-complete start/end sequence (diff) | |
| download | linux-dev-56ac9dd9177ce451ac8176311915b29e8b5f0ac2.tar.xz linux-dev-56ac9dd9177ce451ac8176311915b29e8b5f0ac2.zip | |
RDMA/umem: Avoid synchronize_srcu in the ODP MR destruction path
synchronize_rcu is slow enough that it should be avoided on the syscall
path when user space is destroying MRs. After all the rework we can now
trivially do this by having call_srcu kfree the per_mm.
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to '')
| -rw-r--r-- | include/rdma/ib_umem_odp.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/rdma/ib_umem_odp.h b/include/rdma/ib_umem_odp.h index ec05c82ead7a..0b1446fe2fab 100644 --- a/include/rdma/ib_umem_odp.h +++ b/include/rdma/ib_umem_odp.h @@ -99,6 +99,7 @@ struct ib_ucontext_per_mm { unsigned int odp_mrs_count; struct list_head ucontext_list; + struct rcu_head rcu; }; int ib_umem_odp_get(struct ib_umem_odp *umem_odp, int access); |