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Diffstat (limited to 'fs/btrfs/async-thread.h')
| -rw-r--r-- | fs/btrfs/async-thread.h | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/fs/btrfs/async-thread.h b/fs/btrfs/async-thread.h new file mode 100644 index 000000000..3204daa51 --- /dev/null +++ b/fs/btrfs/async-thread.h @@ -0,0 +1,49 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright (C) 2007 Oracle. All rights reserved. + * Copyright (C) 2014 Fujitsu. All rights reserved. + */ + +#ifndef BTRFS_ASYNC_THREAD_H +#define BTRFS_ASYNC_THREAD_H + +#include <linux/workqueue.h> + +struct btrfs_fs_info; +struct btrfs_workqueue; +/* Internal use only */ +struct __btrfs_workqueue; +struct btrfs_work; +typedef void (*btrfs_func_t)(struct btrfs_work *arg); +typedef void (*btrfs_work_func_t)(struct work_struct *arg); + +struct btrfs_work { + btrfs_func_t func; + btrfs_func_t ordered_func; + btrfs_func_t ordered_free; + + /* Don't touch things below */ + struct work_struct normal_work; + struct list_head ordered_list; + struct __btrfs_workqueue *wq; + unsigned long flags; +}; + +struct btrfs_workqueue *btrfs_alloc_workqueue(struct btrfs_fs_info *fs_info, + const char *name, + unsigned int flags, + int limit_active, + int thresh); +void btrfs_init_work(struct btrfs_work *work, btrfs_func_t func, + btrfs_func_t ordered_func, btrfs_func_t ordered_free); +void btrfs_queue_work(struct btrfs_workqueue *wq, + struct btrfs_work *work); +void btrfs_destroy_workqueue(struct btrfs_workqueue *wq); +void btrfs_workqueue_set_max(struct btrfs_workqueue *wq, int max); +void btrfs_set_work_high_priority(struct btrfs_work *work); +struct btrfs_fs_info * __pure btrfs_work_owner(const struct btrfs_work *work); +struct btrfs_fs_info * __pure btrfs_workqueue_owner(const struct __btrfs_workqueue *wq); +bool btrfs_workqueue_normal_congested(const struct btrfs_workqueue *wq); +void btrfs_flush_workqueue(struct btrfs_workqueue *wq); + +#endif |