mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-11 21:38:32 +08:00
c6dd6ea557
At initializing time, for threshold-able workqueue, it's max_active of kernel workqueue should be 1 and grow if it hits threshold. But due to the bad naming, there is both 'max_active' for kernel workqueue and btrfs workqueue. So wrong value is given at workqueue initialization. This patch fixes it, and to avoid further misunderstanding, change the member name of btrfs_workqueue to 'current_active' and 'limit_active'. Also corresponding comment is added for readability. Reported-by: Alex Lyakas <alex.btrfs@zadarastorage.com> Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com> Signed-off-by: Chris Mason <clm@fb.com>
84 lines
2.9 KiB
C
84 lines
2.9 KiB
C
/*
|
|
* 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_
|
|
#include <linux/workqueue.h>
|
|
|
|
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(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);
|
|
#endif
|