The patch titled
Subject: kernel/sched/fair.c: uninline __update_load_avg()
has been added to the -mm tree. Its filename is
sched-out-of-line-__update_load_avg.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/sched-out-of-line-__update_load_avg.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/sched-out-of-line-__update_load_avg.patch
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------------------------------------------------------
From: Andi Kleen <ak@xxxxxxxxxxxxxxx>
Subject: kernel/sched/fair.c: uninline __update_load_avg()
This is a very complex function, which is called in multiple places. It
is unlikely that inlining or not inlining it makes any difference for its
run time.
This saves around 13k text in my kernel
text data bss dec hex filename
9083992 5367600 11116544 25568136 1862388 vmlinux-before-load-avg
9070166 5367600 11116544 25554310 185ed86 vmlinux-load-avg
Link: http://lkml.kernel.org/r/20170315021431.13107-4-andi@xxxxxxxxxxxxxx
Signed-off-by: Andi Kleen <ak@xxxxxxxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
kernel/sched/fair.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff -puN kernel/sched/fair.c~sched-out-of-line-__update_load_avg kernel/sched/fair.c
--- a/kernel/sched/fair.c~sched-out-of-line-__update_load_avg
+++ a/kernel/sched/fair.c
@@ -2848,7 +2848,7 @@ static u32 __compute_runnable_contrib(u6
* load_avg = u_0` + y*(u_0 + u_1*y + u_2*y^2 + ... )
* = u_0 + u_1*y + u_2*y^2 + ... [re-labeling u_i --> u_{i+1}]
*/
-static __always_inline int
+static int
__update_load_avg(u64 now, int cpu, struct sched_avg *sa,
unsigned long weight, int running, struct cfs_rq *cfs_rq)
{
_
Patches currently in -mm which might be from ak@xxxxxxxxxxxxxxx are
trace-move-trace_seq_overflowed-out-of-line.patch
sched-out-of-line-__update_load_avg.patch
kref-remove-warn_on-for-null-release-functions.patch
out-of-line-dma_alloc-free_attrs.patch
megasas-remove-expensive-inline-from-megasas_return_cmd.patch
remove-expensive-warn_on-in-pagefault_disabled_dec.patch
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