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| author | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2016-08-04 10:20:29 +0200 |
|---|---|---|
| committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2016-08-04 10:20:29 +0200 |
| commit | ee0e41355d1faa5f74085effc4f57c3a7fc1f884 (patch) | |
| tree | c845395523e084218ca6715977648b807d30605d /cpukit/rtems/src/ratemontimeout.c | |
| parent | score: Fix _Thread_queue_Path_release() (diff) | |
| download | rtems-ee0e41355d1faa5f74085effc4f57c3a7fc1f884.tar.bz2 | |
score: Fix a release/cancel job race condition
Split up the potential thread priority change in the scheduler
release/cancel job operation. Protect the rate monotonic period state
with a dedicated SMP lock. This avoids a race condition during
_Rate_monotonic_Timeout() while _Rate_monotonic_Cancel() is called on
another processor.
Diffstat (limited to 'cpukit/rtems/src/ratemontimeout.c')
| -rw-r--r-- | cpukit/rtems/src/ratemontimeout.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/cpukit/rtems/src/ratemontimeout.c b/cpukit/rtems/src/ratemontimeout.c index bd38153b82..e514a314b3 100644 --- a/cpukit/rtems/src/ratemontimeout.c +++ b/cpukit/rtems/src/ratemontimeout.c @@ -31,7 +31,7 @@ void _Rate_monotonic_Timeout( Watchdog_Control *the_watchdog ) owner = the_period->owner; _ISR_lock_ISR_disable( &lock_context ); - _Rate_monotonic_Acquire_critical( owner, &lock_context ); + _Rate_monotonic_Acquire_critical( the_period, &lock_context ); wait_flags = _Thread_Wait_flags_get( owner ); if ( @@ -63,6 +63,6 @@ void _Rate_monotonic_Timeout( Watchdog_Control *the_watchdog ) } } else { the_period->state = RATE_MONOTONIC_EXPIRED; - _Rate_monotonic_Release( owner, &lock_context ); + _Rate_monotonic_Release( the_period, &lock_context ); } } |