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| author | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2013-08-05 14:25:41 +0200 |
|---|---|---|
| committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2013-08-09 21:58:39 +0200 |
| commit | 85817254348c558ec99a5c0499f16839802165e5 (patch) | |
| tree | 39964aef2897b26dd81745b08cdd3e7fa6c04d63 /cpukit/score/src/userextaddset.c | |
| parent | smp: Use ISR lock in per-CPU control (diff) | |
| download | rtems-85817254348c558ec99a5c0499f16839802165e5.tar.bz2 | |
score: Add and use _Per_CPU_Acquire_all().
Add and use _Per_CPU_Release_all().
The context switch user extensions are invoked in _Thread_Dispatch().
This change is necessary to avoid the giant lock in _Thread_Dispatch().
Diffstat (limited to 'cpukit/score/src/userextaddset.c')
| -rw-r--r-- | cpukit/score/src/userextaddset.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/cpukit/score/src/userextaddset.c b/cpukit/score/src/userextaddset.c index d24dc4a8e9..270d93cf5f 100644 --- a/cpukit/score/src/userextaddset.c +++ b/cpukit/score/src/userextaddset.c @@ -20,6 +20,7 @@ #endif #include <rtems/score/userextimpl.h> +#include <rtems/score/percpu.h> void _User_extensions_Add_set( User_extensions_Control *the_extension @@ -32,11 +33,16 @@ void _User_extensions_Add_set( */ if ( the_extension->Callouts.thread_switch != NULL ) { + ISR_Level level; + the_extension->Switch.thread_switch = the_extension->Callouts.thread_switch; - _Chain_Append( + + _Per_CPU_Acquire_all( level ); + _Chain_Append_unprotected( &_User_extensions_Switches_list, &the_extension->Switch.Node ); + _Per_CPU_Release_all( level ); } } |