From ace9429bb58fd418f0c81d4c2835699bddf6bde6 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Thu, 11 Apr 2024 10:27:49 +0200 Subject: Adding upstream version 6.6.15. Signed-off-by: Daniel Baumann --- fs/jfs/jfs_lock.h | 39 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 39 insertions(+) create mode 100644 fs/jfs/jfs_lock.h (limited to 'fs/jfs/jfs_lock.h') diff --git a/fs/jfs/jfs_lock.h b/fs/jfs/jfs_lock.h new file mode 100644 index 0000000000..feb37dd9de --- /dev/null +++ b/fs/jfs/jfs_lock.h @@ -0,0 +1,39 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * Copyright (C) International Business Machines Corp., 2000-2001 + * Portions Copyright (C) Christoph Hellwig, 2001-2002 + */ +#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 */ -- cgit v1.2.3