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| author | Jens Axboe <jens.axboe@oracle.com> | 2010-04-13 20:03:21 +0200 |
|---|---|---|
| committer | Jens Axboe <jens.axboe@oracle.com> | 2010-04-13 20:03:21 +0200 |
| commit | 4facdaec1ce186e731e6baa04f074804849e9a49 (patch) | |
| tree | e521fba8386bf23533cfe21ea5200e615960ec07 /arch/microblaze/kernel/process.c | |
| parent | a11cdaa7af56423a921a8bdad8f5a5f4ddca918a (diff) | |
| parent | 0d0fb0f9c5fddef4a10242fe3337f00f528a3099 (diff) | |
| download | linux-4facdaec1ce186e731e6baa04f074804849e9a49.tar.gz linux-4facdaec1ce186e731e6baa04f074804849e9a49.tar.bz2 linux-4facdaec1ce186e731e6baa04f074804849e9a49.zip | |
Merge branch 'master' into for-2.6.35
Conflicts:
block/blk-cgroup.c
block/cfq-iosched.c
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
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 812f1bf06c9e..09bed44dfcd3 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) |