staging: mt7621-mmc: Bill the caller for I/O time

When waiting on completions, use the _io variant so the caller is
charged as using I/O.

This should have no effect on the module's functionality, only improve
CPU accounting.

Signed-off-by: George Hilliard <thirtythreeforty@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
George Hilliard 2019-03-18 20:20:06 -06:00 • committed by Greg Kroah-Hartman
commit 472033f591