diff options
| author |   Michael J. Ruhl <michael.j.ruhl@intel.com> | 2017-08-28 11:23:27 -0700 |
|---|---|---|
| committer |   Doug Ledford <dledford@redhat.com> | 2017-08-28 19:12:27 -0400 |
| commit | 34ab4de77fe512ba3aeabdcdc97504bd19791511 (patch) | |
| tree | 52e9fbbbc4b35c8ef2282a8447e22beb17378a1e /drivers/infiniband/hw/hfi1/file_ops.c | |
| parent | IB/hfi1: Acquire QSFP cable information on loopback (diff) | |
| download | linux-dev-34ab4de77fe512ba3aeabdcdc97504bd19791511.tar.xz linux-dev-34ab4de77fe512ba3aeabdcdc97504bd19791511.zip | |
IB/hif1: Remove static tracing from SDMA hot path
The hfi1_cdbg() macro can be instantiated in the hot path even when it
is not in use. This shows up on perf profiles.
Rework the macros (for SDMA and MMU), to use the trace interface directly
to eliminate this performance hit.
Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Michael J. Ruhl <michael.j.ruhl@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to '')
| -rw-r--r-- | drivers/infiniband/hw/hfi1/file_ops.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/infiniband/hw/hfi1/file_ops.c b/drivers/infiniband/hw/hfi1/file_ops.c index d893582e4450..2bc89260235a 100644 --- a/drivers/infiniband/hw/hfi1/file_ops.c +++ b/drivers/infiniband/hw/hfi1/file_ops.c @@ -430,8 +430,7 @@ static ssize_t hfi1_write_iter(struct kiocb *kiocb, struct iov_iter *from) if (!iter_is_iovec(from) || !dim) return -EINVAL; - hfi1_cdbg(SDMA, "SDMA request from %u:%u (%lu)", - fd->uctxt->ctxt, fd->subctxt, dim); + trace_hfi1_sdma_request(fd->dd, fd->uctxt->ctxt, fd->subctxt, dim); if (atomic_read(&pq->n_reqs) == pq->n_max_reqs) return -ENOSPC; |