Messages in this thread Patch in this message | | | Date | Thu, 30 Dec 2004 03:52:30 +0800 | From | Coywolf Qi Hunt <> | Subject | Re: [patch] fix sparc64 cpu_idle() |
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Currently sparc and sparc64's UP cpu_idel() checks current pid. This is paranoia.
Signed-off-by: Coywolf Qi Hunt <coywolf@gmail.com>
sparc/kernel/process.c | 10 +--------- sparc64/kernel/process.c | 6 +----- 2 files changed, 2 insertions(+), 14 deletions(-)
diff -Nurp 2.6.10/arch/sparc/kernel/process.c 2.6.10-cy/arch/sparc/kernel/process.c --- 2.6.10/arch/sparc/kernel/process.c 2004-12-29 01:27:57.000000000 +0800 +++ 2.6.10-cy/arch/sparc/kernel/process.c 2004-12-30 03:41:53.000000000 +0800 @@ -81,13 +81,8 @@ void default_idle(void) /* * the idle loop on a Sparc... ;) */ -int cpu_idle(void) +void cpu_idle(void) { - int ret = -EPERM; - - if (current->pid != 0) - goto out; - /* endless idle loop with no priority at all */ for (;;) { if (ARCH_SUN4C_SUN4) { @@ -128,9 +123,6 @@ int cpu_idle(void) schedule(); check_pgt_cache(); } - ret = 0; -out: - return ret; } #else diff -Nurp 2.6.10/arch/sparc64/kernel/process.c 2.6.10-cy/arch/sparc64/kernel/process.c --- 2.6.10/arch/sparc64/kernel/process.c 2004-12-30 02:52:40.000000000 +0800 +++ 2.6.10-cy/arch/sparc64/kernel/process.c 2004-12-30 02:57:40.000000000 +0800 @@ -60,11 +60,8 @@ void default_idle(void) /* * the idle loop on a Sparc... ;) */ -int cpu_idle(void) +void cpu_idle(void) { - if (current->pid != 0) - return -EPERM; - /* endless idle loop with no priority at all */ for (;;) { /* If current->work.need_resched is zero we should really @@ -80,7 +77,6 @@ int cpu_idle(void) schedule(); check_pgt_cache(); } - return 0; } #else
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