linux/fs/btrfs/async-thread.h
David Sterba 9888c3402c btrfs: replace GPL boilerplate by SPDX -- headers
Remove GPL boilerplate text (long, short, one-line) and keep the rest,
ie. personal, company or original source copyright statements. Add the
SPDX header.

Unify the include protection macros to match the file names.

Signed-off-by: David Sterba <dsterba@suse.com>
2018-04-12 16:29:46 +02:00

78 lines
2.6 KiB
C

/* 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;
};
#define BTRFS_WORK_HELPER_PROTO(name) \
void btrfs_##name(struct work_struct *arg)
BTRFS_WORK_HELPER_PROTO(worker_helper);
BTRFS_WORK_HELPER_PROTO(delalloc_helper);
BTRFS_WORK_HELPER_PROTO(flush_delalloc_helper);
BTRFS_WORK_HELPER_PROTO(cache_helper);
BTRFS_WORK_HELPER_PROTO(submit_helper);
BTRFS_WORK_HELPER_PROTO(fixup_helper);
BTRFS_WORK_HELPER_PROTO(endio_helper);
BTRFS_WORK_HELPER_PROTO(endio_meta_helper);
BTRFS_WORK_HELPER_PROTO(endio_meta_write_helper);
BTRFS_WORK_HELPER_PROTO(endio_raid56_helper);
BTRFS_WORK_HELPER_PROTO(endio_repair_helper);
BTRFS_WORK_HELPER_PROTO(rmw_helper);
BTRFS_WORK_HELPER_PROTO(endio_write_helper);
BTRFS_WORK_HELPER_PROTO(freespace_write_helper);
BTRFS_WORK_HELPER_PROTO(delayed_meta_helper);
BTRFS_WORK_HELPER_PROTO(readahead_helper);
BTRFS_WORK_HELPER_PROTO(qgroup_rescan_helper);
BTRFS_WORK_HELPER_PROTO(extent_refs_helper);
BTRFS_WORK_HELPER_PROTO(scrub_helper);
BTRFS_WORK_HELPER_PROTO(scrubwrc_helper);
BTRFS_WORK_HELPER_PROTO(scrubnc_helper);
BTRFS_WORK_HELPER_PROTO(scrubparity_helper);
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_work_func_t helper,
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 *btrfs_work_owner(const struct btrfs_work *work);
struct btrfs_fs_info *btrfs_workqueue_owner(const struct __btrfs_workqueue *wq);
bool btrfs_workqueue_normal_congested(const struct btrfs_workqueue *wq);
#endif