diff options
| author | Tejun Heo <tj@kernel.org> | 2010-04-05 11:37:28 +0900 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2010-04-05 11:37:28 +0900 |
| commit | 336f5899d287f06d8329e208fc14ce50f7ec9698 (patch) | |
| tree | 9b762d450d5eb248a6ff8317badb7e223d93ed58 /arch/microblaze/kernel/process.c | |
| parent | a4ab2773205e8b94c18625455f85e3b6bb9d7ad6 (diff) | |
| parent | db217dece3003df0841bacf9556b5c06aa097dae (diff) | |
Merge branch 'master' into export-slabh
Diffstat (limited to 'arch/microblaze/kernel/process.c')
| -rw-r--r-- | arch/microblaze/kernel/process.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/arch/microblaze/kernel/process.c b/arch/microblaze/kernel/process.c index 812f1bf06c9..09bed44dfcd 100644 --- a/arch/microblaze/kernel/process.c +++ b/arch/microblaze/kernel/process.c @@ -15,6 +15,7 @@ #include <linux/bitops.h> #include <asm/system.h> #include <asm/pgalloc.h> +#include <asm/uaccess.h> /* for USER_DS macros */ #include <asm/cacheflush.h> void show_regs(struct pt_regs *regs) @@ -74,7 +75,10 @@ __setup("hlt", hlt_setup); void default_idle(void) { - if (!hlt_counter) { + if (likely(hlt_counter)) { + while (!need_resched()) + cpu_relax(); + } else { clear_thread_flag(TIF_POLLING_NRFLAG); smp_mb__after_clear_bit(); local_irq_disable(); @@ -82,9 +86,7 @@ void default_idle(void) cpu_sleep(); local_irq_enable(); set_thread_flag(TIF_POLLING_NRFLAG); - } else - while (!need_resched()) - cpu_relax(); + } } void cpu_idle(void) |