RDMA/qib: Remove deprecated kmap() call

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kmap() has been deprecated in favor of the kmap_local_page() call.
kmap_local_page() is thread local.

In the sdma coalesce case the page allocated is potentially free'ed in a
different context through qib_sdma_get_complete() ->
qib_user_sdma_make_progress().  The use of kmap_local_page() is
inappropriate in this call path.  However, the page is allocated using
GFP_KERNEL and will never be from highmem.

Remove the use of kmap calls and use page_address() in this case.

Signed-off-by: Ira Weiny <ira.weiny@intel.com>
Link: https://lore.kernel.org/r/20230217-kmap-qib-v1-1-e5a6fde167e0@intel.com
Acked-by: Dennis Dalessandro <dennis.dalessandro@cornelisnetworks.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>

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Ira Weiny 2023-03-07 09:15:31 -08:00 • committed by Leon Romanovsky

parent d50b3c73f1

commit 6ea0c2de31

1 changed files with 3 additions and 8 deletions

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drivers/infiniband/hw/qib/qib_user_sdma.c

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