[rtems commit] PR 2026/filesystem - Fix semaphore attributes
Sebastian Huber
sebh at rtems.org
Thu Feb 23 10:41:23 UTC 2012
Module: rtems
Branch: master
Commit: a4097fdb2f0bab0fabb69461ff58194908f91e89
Changeset: http://git.rtems.org/rtems/commit/?id=a4097fdb2f0bab0fabb69461ff58194908f91e89
Author: Sebastian Huber <sebastian.huber at embedded-brains.de>
Date: Tue Feb 21 12:56:51 2012 +0100
PR 2026/filesystem - Fix semaphore attributes
Semaphores of type RTEMS_SIMPLE_BINARY_SEMAPHORE are not suitable for a
mutex. Use RTEMS_BINARY_SEMAPHORE with RTEMS_INHERIT_PRIORITY instead.
---
cpukit/libfs/src/rfs/rtems-rfs-mutex.c | 9 ++-------
1 files changed, 2 insertions(+), 7 deletions(-)
diff --git a/cpukit/libfs/src/rfs/rtems-rfs-mutex.c b/cpukit/libfs/src/rfs/rtems-rfs-mutex.c
index 04d700a..f35350f 100644
--- a/cpukit/libfs/src/rfs/rtems-rfs-mutex.c
+++ b/cpukit/libfs/src/rfs/rtems-rfs-mutex.c
@@ -24,15 +24,10 @@
#if __rtems__
/**
* 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 \
- (RTEMS_PRIORITY | RTEMS_SIMPLE_BINARY_SEMAPHORE | \
- RTEMS_NO_INHERIT_PRIORITY | RTEMS_NO_PRIORITY_CEILING | RTEMS_LOCAL)
+ (RTEMS_PRIORITY | RTEMS_BINARY_SEMAPHORE | \
+ RTEMS_INHERIT_PRIORITY | RTEMS_NO_PRIORITY_CEILING | RTEMS_LOCAL)
#endif
int
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