RDMa/uverbs: Copy ex_hdr outside of SRCU read lock

The SRCU read lock protects the IB device pointer
and doesn't need to be called before copying user
provided header.

Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Leon Romanovsky 2018-02-21 18:12:40 +02:00 • committed by Doug Ledford
commit e21719fbbd