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| author | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2016-04-19 17:02:54 +0200 |
|---|---|---|
| committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2016-04-22 09:25:08 +0200 |
| commit | 4025a60fcb892169266102a58beef4caad17340c (patch) | |
| tree | 004df492a31db98faa24335a663eed429ebb5d05 /cpukit/posix/src/semunlink.c | |
| parent | posix: Avoid Giant lock in sem_getvalue() (diff) | |
| download | rtems-4025a60fcb892169266102a58beef4caad17340c.tar.bz2 | |
score: Avoid Giant lock for CORE mtx/sem
Avoid Giant lock for CORE mutex and semaphore flush and delete
operations.
Update #2555.
Diffstat (limited to 'cpukit/posix/src/semunlink.c')
| -rw-r--r-- | cpukit/posix/src/semunlink.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/cpukit/posix/src/semunlink.c b/cpukit/posix/src/semunlink.c index b8406185d4..665aa7337c 100644 --- a/cpukit/posix/src/semunlink.c +++ b/cpukit/posix/src/semunlink.c @@ -21,7 +21,6 @@ #include <semaphore.h> #include <rtems/posix/semaphoreimpl.h> -#include <rtems/seterr.h> int sem_unlink( const char *name @@ -29,6 +28,7 @@ int sem_unlink( { POSIX_Semaphore_Control *the_semaphore; Objects_Get_by_name_error error; + ISR_lock_Context lock_context; _Objects_Allocator_lock(); @@ -38,9 +38,12 @@ int sem_unlink( rtems_set_errno_and_return_minus_one( _POSIX_Get_by_name_error( error ) ); } - the_semaphore->linked = false; _POSIX_Semaphore_Namespace_remove( the_semaphore ); - _POSIX_Semaphore_Delete( the_semaphore ); + + _ISR_lock_ISR_disable( &lock_context ); + _CORE_semaphore_Acquire_critical( &the_semaphore->Semaphore, &lock_context ); + the_semaphore->linked = false; + _POSIX_Semaphore_Delete( the_semaphore, &lock_context ); _Objects_Allocator_unlock(); return 0; |