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| author | Chris Mason <chris.mason@oracle.com> | 2010-05-11 15:09:45 -0700 |
|---|---|---|
| committer | Andy Grover <andy.grover@oracle.com> | 2010-09-08 18:15:08 -0700 |
| commit | 38a4e5e61344490f18241333d7b1b368a3a38748 (patch) | |
| tree | 60268171e32aff9938334806d0debd5c35b3dc56 /net/rds/ib_rdma.c | |
| parent | e4c52c98e04937ea87b0979a81354d0040d284f9 (diff) | |
| download | op-kernel-dev-38a4e5e61344490f18241333d7b1b368a3a38748.zip op-kernel-dev-38a4e5e61344490f18241333d7b1b368a3a38748.tar.gz | |
rds: Use RCU for the bind lookup searches
The RDS bind lookups are somewhat expensive in terms of CPU
time and locking overhead. This commit changes them into a
faster RCU based hash tree instead of the rbtrees they were using
before.
On large NUMA systems it is a significant improvement.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'net/rds/ib_rdma.c')
| -rw-r--r-- | net/rds/ib_rdma.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/net/rds/ib_rdma.c b/net/rds/ib_rdma.c index cc341cd7..4ba01b9 100644 --- a/net/rds/ib_rdma.c +++ b/net/rds/ib_rdma.c @@ -303,6 +303,8 @@ static struct rds_ib_mr *rds_ib_alloc_fmr(struct rds_ib_device *rds_ibdev) goto out_no_cigar; } + memset(ibmr, 0, sizeof(*ibmr)); + ibmr->fmr = ib_alloc_fmr(rds_ibdev->pd, (IB_ACCESS_LOCAL_WRITE | IB_ACCESS_REMOTE_READ | |
