2003-03-07 22:09:13

by Robert Love

[permalink] [raw]
Subject: [patch] no need for kernel_flag on UP

Linus,

Attached patch is a minor cleanup (and memory reduction for gcc < 3).
We currently define and declare the BKL's kernel_flag spinlock on either
SMP or PREEMPT, which means a UP+PREEMPT machine gets it.

We only need the actual lock on SMP.

Patch is against current BK, please apply.

Robert Love


kernel/sched.c | 2 +-
1 files changed, 1 insertion(+), 1 deletion(-)


diff -urN linux-2.5.64-bk/kernel/sched.c linux/kernel/sched.c
--- linux-2.5.64-bk/kernel/sched.c 2003-03-07 17:01:34.727552472 -0500
+++ linux/kernel/sched.c 2003-03-07 17:14:54.684940464 -0500
@@ -2405,7 +2405,7 @@

#endif

-#if CONFIG_SMP || CONFIG_PREEMPT
+#if CONFIG_SMP
/*
* The 'big kernel lock'
*