tree b2ac18bc0976f6267bce953fc0f826dc104821d0
parent 789c2af88f24d1db983aae49b5c4561e6e02ff5b
author Kuehling, Felix <Felix.Kuehling@amd.com> 1557518004 +0000
committer Jason Gunthorpe <jgg@mellanox.com> 1559849501 -0300

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>