Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 51 insertions, 0 deletions

diff --git a/fs/jfs/jfs_lock.h b/fs/jfs/jfs_lock.h
new file mode 100644
index 000000000000..10ad1d086685
--- /dev/null
+++ b/fs/jfs/jfs_lock.h
@@ -0,0 +1,51 @@
+/*
+ *   Copyright (c) International Business Machines Corp., 2000-2001
+ *   Portions Copyright (c) Christoph Hellwig, 2001-2002
+ *
+ *   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; either version 2 of the License, or 
+ *   (at your option) any later version.
+ * 
+ *   This program is distributed in the hope that it will 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 to the Free Software 
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+#ifndef _H_JFS_LOCK
+#define _H_JFS_LOCK
+
+#include <linux/spinlock.h>
+#include <linux/sched.h>
+
+/*
+ *      jfs_lock.h
+ */
+
+/*
+ * Conditional sleep where condition is protected by spinlock
+ *
+ * lock_cmd and unlock_cmd take and release the spinlock
+ */
+#define __SLEEP_COND(wq, cond, lock_cmd, unlock_cmd)    \
+do {                                                    \
+        DECLARE_WAITQUEUE(__wait, current);             \
+                                                        \
+        add_wait_queue(&wq, &__wait);                   \
+        for (;;) {                                      \
+                set_current_state(TASK_UNINTERRUPTIBLE);\
+                if (cond)                               \
+                        break;                          \
+                unlock_cmd;                             \
+                schedule();                             \
+                lock_cmd;                               \
+        }                                               \
+        current->state = TASK_RUNNING;                  \
+        remove_wait_queue(&wq, &__wait);                \
+} while (0)
+
+#endif                          /* _H_JFS_LOCK */