Leon Romanovsky 5d9a2b0e28 RDMA/i40w: Hold read semaphore while looking after VMA
VMA lookup is supposed to be performed while mmap_sem is held.

Fixes: f26c7c83395b ("i40iw: Add 2MB page support")
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-07-04 11:51:06 -06:00
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