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(parent: 789c2af) | patch
mm/hmm: Only set FAULT_FLAG_ALLOW_RETRY for non-blocking
authorKuehling, Felix <Felix.Kuehling@amd.com>
Fri, 10 May 2019 19:53:24 +0000 (19:53 +0000)
committerJason Gunthorpe <jgg@mellanox.com>
Thu, 6 Jun 2019 19:31:41 +0000 (16:31 -0300)
commit9b1ae605c8e295836050fa6eaf720131db2fac73
treeb2ac18bc0976f6267bce953fc0f826dc104821d0tree | snapshot
parent789c2af88f24d1db983aae49b5c4561e6e02ff5bcommit | diff
mm/hmm: Only set FAULT_FLAG_ALLOW_RETRY for non-blocking

Don't set this flag by default in hmm_vma_do_fault. It is set
conditionally just a few lines below. Setting it unconditionally can lead
to handle_mm_fault doing a non-blocking fault, returning -EBUSY and
unlocking mmap_sem unexpectedly.

Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Jérôme Glisse <jglisse@redhat.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
mm/hmm.c diff | blob | history
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