IB/srp: Remove the memory registration backtracking code

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Mapping a discontiguous sg-list requires multiple memory regions
and hence can exhaust the memory region pool. The SRP initiator
already handles this by temporarily reducing the queue depth. This
means that it is safe to remove the memory registration backtracking
code. This patch has been tested with direct I/O sizes up to 256 MB.

Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>

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Bart Van Assche 2015-08-10 17:07:46 -07:00 • committed by Doug Ledford

parent f731ed6293

commit 0e0d3a4800

2 changed files with 13 additions and 55 deletions

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62

drivers/infiniband/ulp/srp/ib_srp.c

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6

drivers/infiniband/ulp/srp/ib_srp.h

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