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PR 2026/filesystem - Fix semaphore attributes

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Semaphores of type RTEMS_SIMPLE_BINARY_SEMAPHORE are not suitable for a
mutex.  Use RTEMS_BINARY_SEMAPHORE with RTEMS_INHERIT_PRIORITY instead.
This commit is contained in:
Sebastian Huber
2012-02-21 12:56:51 +01:00
parent 3f85deb858
commit cb648b75ff
1 changed files with 2 additions and 7 deletions
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9
cpukit/libfs/src/rfs/rtems-rfs-mutex.c
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@@ -24,15 +24,10 @@
#if __rtems__ #if __rtems__
/** /**
* RTEMS_RFS Mutex Attributes * RTEMS_RFS Mutex Attributes
*
* @warning Do not configure as inherit priority. If a driver is in the driver
* initialisation table this locked semaphore will have the IDLE task
* as the holder and a blocking task will raise the priority of the
* IDLE task which can cause unsual side effects like not work.
*/ */
#define RTEMS_RFS_MUTEX_ATTRIBS \ #define RTEMS_RFS_MUTEX_ATTRIBS \
(RTEMS_PRIORITY | RTEMS_SIMPLE_BINARY_SEMAPHORE | \ (RTEMS_PRIORITY | RTEMS_BINARY_SEMAPHORE | \
RTEMS_NO_INHERIT_PRIORITY | RTEMS_NO_PRIORITY_CEILING | RTEMS_LOCAL) RTEMS_INHERIT_PRIORITY | RTEMS_NO_PRIORITY_CEILING | RTEMS_LOCAL)
#endif #endif
int int