[PATCH] oprofile: convert from semaphores to mutexes

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Cc: Philippe Elie <phil.el@wanadoo.fr>
Cc: John Levon <levon@movementarian.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 4 insertions, 4 deletions

diff --git a/drivers/oprofile/buffer_sync.c b/drivers/oprofile/buffer_sync.c
index b2e8e49c8659..43e521e99126 100644
--- a/drivers/oprofile/buffer_sync.c
+++ b/drivers/oprofile/buffer_sync.c
@@ -108,10 +108,10 @@ static int module_load_notify(struct notifier_block * self, unsigned long val, v
                 return 0;
 
         /* FIXME: should we process all CPU buffers ? */
-        down(&buffer_sem);
+        mutex_lock(&buffer_mutex);
         add_event_entry(ESCAPE_CODE);
         add_event_entry(MODULE_LOADED_CODE);
-        up(&buffer_sem);
+        mutex_unlock(&buffer_mutex);
 #endif
         return 0;
 }
@@ -501,7 +501,7 @@ void sync_buffer(int cpu)
         sync_buffer_state state = sb_buffer_start;
         unsigned long available;
 
-        down(&buffer_sem);
+        mutex_lock(&buffer_mutex);
  
         add_cpu_switch(cpu);
 
@@ -550,5 +550,5 @@ void sync_buffer(int cpu)
 
         mark_done(cpu);
 
-        up(&buffer_sem);
+        mutex_unlock(&buffer_mutex);
 }