Chuck Lever
39b09a1a12
svcrdma: Add gfp flags to svc_rdma_post_recv()
...
svc_rdma_post_recv() allocates pages for receive buffers on-demand.
It uses GFP_KERNEL so the allocator tries hard, and may sleep. But
I'm about to add a call to svc_rdma_post_recv() from a function
that may not sleep.
Since all svc_rdma_post_recv() call sites can tolerate its failure,
allow it to fail if the page allocator returns nothing. Longer term,
receive buffers, being a finite resource per-connection, should be
pre-allocated and re-used.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com >
Acked-by: Bruce Fields <bfields@fieldses.org >
Signed-off-by: Doug Ledford <dledford@redhat.com >
2016-01-19 15:30:48 -05:00
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