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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-03-26 16:04:22 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-03-26 16:04:22 -0700 |
| commit | 21cdbc1378e8aa96e1ed4a606dce1a8e7daf7fdf (patch) | |
| tree | 55b6c294b912ccdc3eede15960b0ece53a69d902 /drivers/s390/cio/airq.c | |
| parent | 86d9c070175de65890794fa227b68297da6206d8 (diff) | |
| parent | ef3500b2b2955af4fa6b0564b51c0c604e38c571 (diff) | |
Merge branch 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6
* 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6: (81 commits)
[S390] remove duplicated #includes
[S390] cpumask: use mm_cpumask() wrapper
[S390] cpumask: Use accessors code.
[S390] cpumask: prepare for iterators to only go to nr_cpu_ids/nr_cpumask_bits.
[S390] cpumask: remove cpu_coregroup_map
[S390] fix clock comparator save area usage
[S390] Add hwcap flag for the etf3 enhancement facility
[S390] Ensure that ipl panic notifier is called late.
[S390] fix dfp elf hwcap/facility bit detection
[S390] smp: perform initial cpu reset before starting a cpu
[S390] smp: fix memory leak on __cpu_up
[S390] ipl: Improve checking logic and remove switch defaults.
[S390] s390dbf: Remove needless check for NULL pointer.
[S390] s390dbf: Remove redundant initilizations.
[S390] use kzfree()
[S390] BUG to BUG_ON changes
[S390] zfcpdump: Prevent zcore from beeing built as a kernel module.
[S390] Use csum_partial in checksum.h
[S390] cleanup lowcore.h
[S390] eliminate ipl_device from lowcore
...
Diffstat (limited to 'drivers/s390/cio/airq.c')
| -rw-r--r-- | drivers/s390/cio/airq.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/s390/cio/airq.c b/drivers/s390/cio/airq.c index fe6cea15bba..65d2e769dfa 100644 --- a/drivers/s390/cio/airq.c +++ b/drivers/s390/cio/airq.c @@ -34,8 +34,8 @@ struct airq_t { void *drv_data; }; -static union indicator_t indicators[MAX_ISC]; -static struct airq_t *airqs[MAX_ISC][NR_AIRQS]; +static union indicator_t indicators[MAX_ISC+1]; +static struct airq_t *airqs[MAX_ISC+1][NR_AIRQS]; static int register_airq(struct airq_t *airq, u8 isc) { @@ -133,6 +133,8 @@ void do_adapter_IO(u8 isc) while (word) { if (word & INDICATOR_MASK) { airq = airqs[isc][i]; + /* Make sure gcc reads from airqs only once. */ + barrier(); if (likely(airq)) airq->handler(&indicators[isc].byte[i], airq->drv_data); |