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Diffstat (limited to 'fs/btrfs/async-thread.h')
| -rw-r--r-- | fs/btrfs/async-thread.h | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/fs/btrfs/async-thread.h b/fs/btrfs/async-thread.h new file mode 100644 index 00000000000..9c6b66d15fb --- /dev/null +++ b/fs/btrfs/async-thread.h @@ -0,0 +1,54 @@ +/* + * Copyright (C) 2007 Oracle. All rights reserved. + * Copyright (C) 2014 Fujitsu. All rights reserved. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public + * License v2 as published by the Free Software Foundation. + * + * 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 021110-1307, USA. + */ + +#ifndef __BTRFS_ASYNC_THREAD_ +#define __BTRFS_ASYNC_THREAD_ + +struct btrfs_workqueue; +/* Internal use only */ +struct __btrfs_workqueue; +struct btrfs_work; +typedef void (*btrfs_func_t)(struct btrfs_work *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(const char *name, + int flags, + int max_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); +#endif |