/* * 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 #include #include /* * 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 */ ve'>summaryrefs log tree commit diff

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