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(parent: f731ed6) | patch
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)
commit0e0d3a480090d03f29e58dfd717960776f3416d9
tree344d97538f6d08342efbed7bd2f324a1d5ea3dd8tree | snapshot (tar.gz zip)
parentf731ed62934ace0d3f5aa9ec557349171711be05commit | diff
IB/srp: Remove the memory registration backtracking code

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 diff | blob | blame | history
drivers/infiniband/ulp/srp/ib_srp.h diff | blob | blame | history