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- /*
- * 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/mutex.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; \
- io_schedule(); \
- lock_cmd; \
- } \
- __set_current_state(TASK_RUNNING); \
- remove_wait_queue(&wq, &__wait); \
- } while (0)
- #endif /* _H_JFS_LOCK */
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