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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
| commit | 5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 (patch) | |
| tree | a94efe259b9009378be6d90eb30d2b019d95c194 /fs/jfs/jfs_lock.h | |
| parent | Initial commit. (diff) | |
| download | linux-5d1646d90e1f2cceb9f0828f4b28318cd0ec7744.tar.xz linux-5d1646d90e1f2cceb9f0828f4b28318cd0ec7744.zip | |
Adding upstream version 5.10.209.upstream/5.10.209
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'fs/jfs/jfs_lock.h')
| -rw-r--r-- | fs/jfs/jfs_lock.h | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/fs/jfs/jfs_lock.h b/fs/jfs/jfs_lock.h new file mode 100644 index 000000000..feb37dd9d --- /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 <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 */ |