diff mbox

[RFC,v2,14/15] Add coroutine annotations for qemu_co_rwlock_rdlock and qemu_co_rwlock_wrlock

Message ID 1376070245-22557-14-git-send-email-charlie@ctshepherd.com
State New
Headers show

Commit Message

Charlie Shepherd Aug. 9, 2013, 5:44 p.m. UTC 
qemu_co_rwlock_rdlock and qemu_co_rwlock_wrlock can only run in a coroutine
context, so annotate them with coroutine_fn.

Signed-off-by: Charlie Shepherd <charlie@ctshepherd.com>
---
 include/block/coroutine.h | 4 ++--
 qemu-coroutine-lock.c     | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)
diff mbox

Patch

diff --git a/include/block/coroutine.h b/include/block/coroutine.h
index 1aae6e9..5e73219 100644
--- a/include/block/coroutine.h
+++ b/include/block/coroutine.h
@@ -199,14 +199,14 @@  void qemu_co_rwlock_init(CoRwlock *lock);
  * of a parallel writer, control is transferred to the caller of the current
  * coroutine.
  */
-void qemu_co_rwlock_rdlock(CoRwlock *lock);
+void coroutine_fn qemu_co_rwlock_rdlock(CoRwlock *lock);
 
 /**
  * Write Locks the mutex. If the lock cannot be taken immediately because
  * of a parallel reader, control is transferred to the caller of the current
  * coroutine.
  */
-void qemu_co_rwlock_wrlock(CoRwlock *lock);
+void coroutine_fn qemu_co_rwlock_wrlock(CoRwlock *lock);
 
 /**
  * Unlocks the read/write lock and schedules the next coroutine that was
diff --git a/qemu-coroutine-lock.c b/qemu-coroutine-lock.c
index aeb33b9..06ee5b9 100644
--- a/qemu-coroutine-lock.c
+++ b/qemu-coroutine-lock.c
@@ -161,7 +161,7 @@  void qemu_co_rwlock_init(CoRwlock *lock)
     qemu_co_queue_init(&lock->queue);
 }
 
-void qemu_co_rwlock_rdlock(CoRwlock *lock)
+void coroutine_fn qemu_co_rwlock_rdlock(CoRwlock *lock)
 {
     while (lock->writer) {
         qemu_co_queue_wait(&lock->queue);
@@ -185,7 +185,7 @@  void qemu_co_rwlock_unlock(CoRwlock *lock)
     }
 }
 
-void qemu_co_rwlock_wrlock(CoRwlock *lock)
+void coroutine_fn qemu_co_rwlock_wrlock(CoRwlock *lock)
 {
     while (lock->writer || lock->reader) {
         qemu_co_queue_wait(&lock->queue);