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Chuck Lever d8099feda4 xprtrdma: Reduce context switching due to Local Invalidation

Since commit ba69cd122e ("xprtrdma: Remove support for FMR memory
registration"), FRWR is the only supported memory registration mode.

We can take advantage of the asynchronous nature of FRWR's LOCAL_INV
Work Requests to get rid of the completion wait by having the
LOCAL_INV completion handler take care of DMA unmapping MRs and
waking the upper layer RPC waiter.

This eliminates two context switches when local invalidation is
necessary. As a side benefit, we will no longer need the per-xprt
deferred completion work queue.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>

2019-07-09 10:30:25 -04:00

events

xprtrdma: Reduce context switching due to Local Invalidation

2019-07-09 10:30:25 -04:00

bpf_probe.h

bpf: add writable context for raw tracepoints

2019-04-26 19:04:19 -07:00

define_trace.h

tracing: introduce TRACE_EVENT_NOP()

2019-04-08 09:22:51 -04:00

perf.h

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net