diff options
author | Paul Jackson <pj@sgi.com> | 2006-01-08 01:01:54 -0800 |
---|---|---|
committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-01-08 20:13:43 -0800 |
commit | cf2a473c4089aa41c26f653200673f5a4cc25047 (patch) | |
tree | 0bce21f4684a382b13e93ba5b85409cf5eab1c2c /mm/rmap.c | |
parent | b4b2641843db124637fa3d2cb2101982035dcc82 (diff) |
[PATCH] cpuset: combine refresh_mems and update_mems
The important code paths through alloc_pages_current() and alloc_page_vma(),
by which most kernel page allocations go, both called
cpuset_update_current_mems_allowed(), which in turn called refresh_mems().
-Both- of these latter two routines did a tasklock, got the tasks cpuset
pointer, and checked for out of date cpuset->mems_generation.
That was a silly duplication of code and waste of CPU cycles on an important
code path.
Consolidated those two routines into a single routine, called
cpuset_update_task_memory_state(), since it updates more than just
mems_allowed.
Changed all callers of either routine to call the new consolidated routine.
Signed-off-by: Paul Jackson <pj@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'mm/rmap.c')
0 files changed, 0 insertions, 0 deletions