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IB/core: Add umem function to read data from user-space
authorHaggai Eran <haggaie@mellanox.com>
Thu, 11 Dec 2014 15:04:13 +0000 (17:04 +0200)
committerRoland Dreier <roland@purestorage.com>
Tue, 16 Dec 2014 02:13:35 +0000 (18:13 -0800)
commitc5d76f130b286682b64c659eaf6af701e3d79a7b
tree0431513226d065f1c46e106a78e3f51ddf723a2dtree | snapshot
parent406f9e5fa9a7a60b42e676841e39f2d752266814commit | diff
IB/core: Add umem function to read data from user-space

In some drivers there's a need to read data from a user space area
that was pinned using ib_umem when running from a different process
context.

The ib_umem_copy_from function allows reading data from the physical
pages pinned in the ib_umem struct.

Signed-off-by: Haggai Eran <haggaie@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
drivers/infiniband/core/umem.c diff | blob | history
include/rdma/ib_umem.h diff | blob | history
Domain: System / Kernel;