sh: __copy_user() optimizations for small copies.

Browse source

This implements a fast-path for small (less than 12 bytes) copies,
with the existing path treated as the slow-path and left as the default
behaviour for all other copy sizes.

Signed-off-by: Stuart Menefy <stuart.menefy@st.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

...

This commit is contained in:

Stuart Menefy 2007-09-28 12:36:35 +09:00 • committed by Paul Mundt

parent 24eb17e081

commit 023ef184ff

1 changed files with 108 additions and 61 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

175

arch/sh/mm/copy_page.S

View file