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* [PATCH v3 0/2] Fix NFS/RDMA operation with Ryzen IOMMU
@ 2020-02-12 16:12 Chuck Lever
  2020-02-12 16:12 ` [PATCH v3 1/2] xprtrdma: Fix DMA scatter-gather list mapping imbalance Chuck Lever
  2020-02-12 16:12 ` [PATCH v3 2/2] xprtrdma: Enhance MR-related trace points Chuck Lever
  0 siblings, 2 replies; 10+ messages in thread
From: Chuck Lever @ 2020-02-12 16:12 UTC (permalink / raw)
  To: anna.schumaker; +Cc: linux-nfs, linux-rdma

Hi Anna-

Here's a fix for the bug reported yesterday morning, plus an
observability enhancement to help diagnose future similar bugs. The
fix needs to go into 5.6-rc and 5.5-stable as soon as you can. The
observability change can go in wherever you see fit. Thanks!


Changes since v2:
- Fix now passes the usual gamut of static checks
- Improve MR trace points even further
- Split out the trace point change; it does not need to be
  backported

Changes since v1:
- Ensure the correct nents value is passed to ib_map_mr_sg
- Record the mr_nents value in the MR trace points

---

Chuck Lever (2):
      xprtrdma: Fix DMA scatter-gather list mapping imbalance
      xprtrdma: Enhance MR-related trace points


 include/trace/events/rpcrdma.h |   56 +++++++++++++++++++++-------------------
 net/sunrpc/xprtrdma/frwr_ops.c |   15 ++++++-----
 2 files changed, 38 insertions(+), 33 deletions(-)

--
Chuck Lever


^ permalink raw reply	[flat|nested] 10+ messages in thread

end of thread, other threads:[~2020-02-13 14:56 UTC | newest]

Thread overview: 10+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2020-02-12 16:12 [PATCH v3 0/2] Fix NFS/RDMA operation with Ryzen IOMMU Chuck Lever
2020-02-12 16:12 ` [PATCH v3 1/2] xprtrdma: Fix DMA scatter-gather list mapping imbalance Chuck Lever
2020-02-12 18:26   ` Jason Gunthorpe
2020-02-12 18:38     ` Chuck Lever
2020-02-12 19:05       ` Jason Gunthorpe
2020-02-12 19:09         ` Chuck Lever
2020-02-12 19:30           ` Jason Gunthorpe
2020-02-13 14:33             ` Chuck Lever
2020-02-13 14:56               ` Jason Gunthorpe
2020-02-12 16:12 ` [PATCH v3 2/2] xprtrdma: Enhance MR-related trace points Chuck Lever

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