diff options
| author | Steve French <sfrench@us.ibm.com> | 2007-07-19 04:38:57 +0400 |
|---|---|---|
| committer | Steve French <sfrench@us.ibm.com> | 2007-07-19 04:38:57 +0400 |
| commit | 1ff8392c32a2645d2665ca779ecb91bb29361c13 (patch) | |
| tree | 860b95e9a499ade4060848740fc6ce1fbb4e4e8d /include/linux/hardirq.h | |
| parent | 70b315b0dd3879cb3ab8aadffb14f10b2d19b9c3 (diff) | |
| parent | 5bae7ac9feba925fd0099057f6b23d7be80b7b41 (diff) | |
| download | linux-1ff8392c32a2645d2665ca779ecb91bb29361c13.tar.xz | |
Merge branch 'master' of /pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts:
fs/cifs/export.c
Diffstat (limited to 'include/linux/hardirq.h')
| -rw-r--r-- | include/linux/hardirq.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/include/linux/hardirq.h b/include/linux/hardirq.h index 7803014f3a11..8d302298a161 100644 --- a/include/linux/hardirq.h +++ b/include/linux/hardirq.h @@ -79,6 +79,19 @@ #endif #ifdef CONFIG_PREEMPT +# define PREEMPT_CHECK_OFFSET 1 +#else +# define PREEMPT_CHECK_OFFSET 0 +#endif + +/* + * Check whether we were atomic before we did preempt_disable(): + * (used by the scheduler) + */ +#define in_atomic_preempt_off() \ + ((preempt_count() & ~PREEMPT_ACTIVE) != PREEMPT_CHECK_OFFSET) + +#ifdef CONFIG_PREEMPT # define preemptible() (preempt_count() == 0 && !irqs_disabled()) # define IRQ_EXIT_OFFSET (HARDIRQ_OFFSET-1) #else |