upload tizen1.0 sourceHEADmaster2.0alpha

1 files changed, 59 insertions, 0 deletions

diff --git a/fs/xfs/linux-2.6/sv.h b/fs/xfs/linux-2.6/sv.h
new file mode 100644
index 00000000..4dfc7c37
--- /dev/null
+++ b/fs/xfs/linux-2.6/sv.h
@@ -0,0 +1,59 @@
+/*
+ * Copyright (c) 2000-2002,2005 Silicon Graphics, Inc.
+ * All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write the Free Software Foundation,
+ * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+#ifndef __XFS_SUPPORT_SV_H__
+#define __XFS_SUPPORT_SV_H__
+
+#include <linux/wait.h>
+#include <linux/sched.h>
+#include <linux/spinlock.h>
+
+/*
+ * Synchronisation variables.
+ *
+ * (Parameters "pri", "svf" and "rts" are not implemented)
+ */
+
+typedef struct sv_s {
+	wait_queue_head_t waiters;
+} sv_t;
+
+static inline void _sv_wait(sv_t *sv, spinlock_t *lock)
+{
+	DECLARE_WAITQUEUE(wait, current);
+
+	add_wait_queue_exclusive(&sv->waiters, &wait);
+	__set_current_state(TASK_UNINTERRUPTIBLE);
+	spin_unlock(lock);
+
+	schedule();
+
+	remove_wait_queue(&sv->waiters, &wait);
+}
+
+#define sv_init(sv,flag,name) \
+	init_waitqueue_head(&(sv)->waiters)
+#define sv_destroy(sv) \
+	/*NOTHING*/
+#define sv_wait(sv, pri, lock, s) \
+	_sv_wait(sv, lock)
+#define sv_signal(sv) \
+	wake_up(&(sv)->waiters)
+#define sv_broadcast(sv) \
+	wake_up_all(&(sv)->waiters)
+
+#endif /* __XFS_SUPPORT_SV_H__ */