diff options
| author | Dave Airlie <airlied@redhat.com> | 2009-03-28 20:22:18 -0400 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2009-03-28 20:22:18 -0400 |
| commit | 90f959bcb386da2c71613dcefc6a285e054a539e (patch) | |
| tree | ee3e9dd4111d4aad12e579cb0c2c159114dff263 /drivers/s390/cio/airq.c | |
| parent | 41f13fe81dd1b08723ab9f3fc3c7f29cfa81f1a5 (diff) | |
| parent | 07d43ba98621f08e252a48c96b258b4d572b0257 (diff) | |
drm: merge Linux master into HEAD
Conflicts:
drivers/gpu/drm/drm_info.c
drivers/gpu/drm/drm_proc.c
drivers/gpu/drm/i915/i915_gem_debugfs.c
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); |