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IB/srp: Remove the memory registration backtracking code
authorBart Van Assche <bart.vanassche@sandisk.com>
Tue, 11 Aug 2015 00:07:46 +0000 (17:07 -0700)
committerDoug Ledford <dledford@redhat.com>
Sun, 30 Aug 2015 22:12:37 +0000 (18:12 -0400)
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>
drivers/infiniband/ulp/srp/ib_srp.c patch | blob | history
drivers/infiniband/ulp/srp/ib_srp.h patch | blob | history

diff --cc drivers/infiniband/ulp/srp/ib_srp.c
Simple merge
diff --cc drivers/infiniband/ulp/srp/ib_srp.h
Simple merge
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