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btrfs: Replace fs_info->readahead_workers workqueue with btrfs_workqueue. 

Replace the fs_info->readahead_workers with the newly created
btrfs_workqueue.

Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
Tested-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Josef Bacik <jbacik@fb.com>
This commit is contained in:
Qu Wenruo 2014-02-28 10:46:13 +08:00 committed by Josef Bacik
parent e66f0bb144
commit 736cfa15e8
4 changed files with 11 additions and 14 deletions
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2
fs/btrfs/ctree.h
View File

@ -1517,7 +1517,7 @@ struct btrfs_fs_info {
struct btrfs_workqueue_struct *endio_freespace_worker;
struct btrfs_workqueue_struct *submit_workers;
struct btrfs_workqueue_struct *caching_workers;
struct btrfs_workers readahead_workers;
struct btrfs_workqueue_struct *readahead_workers;
/*
* fixup workers take dirty pages that didn't properly go through

12
fs/btrfs/disk-io.c
View File

@ -2008,7 +2008,7 @@ static void btrfs_stop_all_workers(struct btrfs_fs_info *fs_info)
btrfs_destroy_workqueue(fs_info->submit_workers);
btrfs_stop_workers(&fs_info->delayed_workers);
btrfs_destroy_workqueue(fs_info->caching_workers);
btrfs_stop_workers(&fs_info->readahead_workers);
btrfs_destroy_workqueue(fs_info->readahead_workers);
btrfs_destroy_workqueue(fs_info->flush_workers);
btrfs_stop_workers(&fs_info->qgroup_rescan_workers);
}
@ -2522,14 +2522,11 @@ int open_ctree(struct super_block *sb,
btrfs_init_workers(&fs_info->delayed_workers, "delayed-meta",
fs_info->thread_pool_size,
&fs_info->generic_worker);
btrfs_init_workers(&fs_info->readahead_workers, "readahead",
fs_info->thread_pool_size,
&fs_info->generic_worker);
fs_info->readahead_workers =
btrfs_alloc_workqueue("readahead", flags, max_active, 2);
btrfs_init_workers(&fs_info->qgroup_rescan_workers, "qgroup-rescan", 1,
&fs_info->generic_worker);
fs_info->readahead_workers.idle_thresh = 2;
/*
* btrfs_start_workers can really only fail because of ENOMEM so just
* return -ENOMEM if any of these fail.
@ -2537,7 +2534,6 @@ int open_ctree(struct super_block *sb,
ret = btrfs_start_workers(&fs_info->generic_worker);
ret |= btrfs_start_workers(&fs_info->fixup_workers);
ret |= btrfs_start_workers(&fs_info->delayed_workers);
ret |= btrfs_start_workers(&fs_info->readahead_workers);
ret |= btrfs_start_workers(&fs_info->qgroup_rescan_workers);
if (ret) {
err = -ENOMEM;
@ -2549,7 +2545,7 @@ int open_ctree(struct super_block *sb,
fs_info->endio_meta_write_workers &&
fs_info->endio_write_workers && fs_info->endio_raid56_workers &&
fs_info->endio_freespace_worker && fs_info->rmw_workers &&
fs_info->caching_workers)) {
fs_info->caching_workers && fs_info->readahead_workers)) {
err = -ENOMEM;
goto fail_sb_buffer;
}

9
fs/btrfs/reada.c
View File

@ -91,7 +91,8 @@ struct reada_zone {
};
struct reada_machine_work {
struct btrfs_work work;
struct btrfs_work_struct
work;
struct btrfs_fs_info *fs_info;
};
@ -733,7 +734,7 @@ static int reada_start_machine_dev(struct btrfs_fs_info *fs_info,
}
static void reada_start_machine_worker(struct btrfs_work *work)
static void reada_start_machine_worker(struct btrfs_work_struct *work)
{
struct reada_machine_work *rmw;
struct btrfs_fs_info *fs_info;
@ -793,10 +794,10 @@ static void reada_start_machine(struct btrfs_fs_info *fs_info)
/* FIXME we cannot handle this properly right now */
BUG();
}
rmw->work.func = reada_start_machine_worker;
btrfs_init_work(&rmw->work, reada_start_machine_worker, NULL, NULL);
rmw->fs_info = fs_info;
btrfs_queue_worker(&fs_info->readahead_workers, &rmw->work);
btrfs_queue_work(fs_info->readahead_workers, &rmw->work);
}
#ifdef DEBUG

2
fs/btrfs/super.c
View File

@ -1336,7 +1336,7 @@ static void btrfs_resize_thread_pool(struct btrfs_fs_info *fs_info,
btrfs_workqueue_set_max(fs_info->endio_write_workers, new_pool_size);
btrfs_workqueue_set_max(fs_info->endio_freespace_worker, new_pool_size);
btrfs_set_max_workers(&fs_info->delayed_workers, new_pool_size);
btrfs_set_max_workers(&fs_info->readahead_workers, new_pool_size);
btrfs_workqueue_set_max(fs_info->readahead_workers, new_pool_size);
btrfs_set_max_workers(&fs_info->scrub_wr_completion_workers,
new_pool_size);
}