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btrfs: Replace fs_info->submit_workers with btrfs_workqueue. 

Much like the fs_info->workers, replace the fs_info->submit_workers
use the same 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 10:46:08 +08:00 committed by Josef Bacik
parent afe3d24267
commit a8c93d4ef6
5 changed files with 18 additions and 16 deletions
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2
fs/btrfs/ctree.h
View File

@ -1515,7 +1515,7 @@ struct btrfs_fs_info {
struct btrfs_workers endio_meta_write_workers;
struct btrfs_workers endio_write_workers;
struct btrfs_workers endio_freespace_worker;
struct btrfs_workers submit_workers;
struct btrfs_workqueue_struct *submit_workers;
struct btrfs_workers caching_workers;
struct btrfs_workers readahead_workers;

17
fs/btrfs/disk-io.c
View File

@ -2006,7 +2006,7 @@ static void btrfs_stop_all_workers(struct btrfs_fs_info *fs_info)
btrfs_stop_workers(&fs_info->endio_meta_write_workers);
btrfs_stop_workers(&fs_info->endio_write_workers);
btrfs_stop_workers(&fs_info->endio_freespace_worker);
btrfs_stop_workers(&fs_info->submit_workers);
btrfs_destroy_workqueue(fs_info->submit_workers);
btrfs_stop_workers(&fs_info->delayed_workers);
btrfs_stop_workers(&fs_info->caching_workers);
btrfs_stop_workers(&fs_info->readahead_workers);
@ -2486,18 +2486,19 @@ int open_ctree(struct super_block *sb,
btrfs_init_workers(&fs_info->flush_workers, "flush_delalloc",
fs_info->thread_pool_size, NULL);
btrfs_init_workers(&fs_info->submit_workers, "submit",
min_t(u64, fs_devices->num_devices,
fs_info->thread_pool_size), NULL);
btrfs_init_workers(&fs_info->caching_workers, "cache",
fs_info->thread_pool_size, NULL);
/* a higher idle thresh on the submit workers makes it much more
/*
* a higher idle thresh on the submit workers makes it much more
* likely that bios will be send down in a sane order to the
* devices
*/
fs_info->submit_workers.idle_thresh = 64;
fs_info->submit_workers =
btrfs_alloc_workqueue("submit", flags,
min_t(u64, fs_devices->num_devices,
max_active), 64);
btrfs_init_workers(&fs_info->fixup_workers, "fixup", 1,
&fs_info->generic_worker);
@ -2548,7 +2549,6 @@ int open_ctree(struct super_block *sb,
* return -ENOMEM if any of these fail.
*/
ret = btrfs_start_workers(&fs_info->generic_worker);
ret |= btrfs_start_workers(&fs_info->submit_workers);
ret |= btrfs_start_workers(&fs_info->fixup_workers);
ret |= btrfs_start_workers(&fs_info->endio_workers);
ret |= btrfs_start_workers(&fs_info->endio_meta_workers);
@ -2566,7 +2566,8 @@ int open_ctree(struct super_block *sb,
err = -ENOMEM;
goto fail_sb_buffer;
}
if (!(fs_info->workers && fs_info->delalloc_workers)) {
if (!(fs_info->workers && fs_info->delalloc_workers &&
fs_info->submit_workers)) {
err = -ENOMEM;
goto fail_sb_buffer;
}

2
fs/btrfs/super.c
View File

@ -1326,7 +1326,7 @@ static void btrfs_resize_thread_pool(struct btrfs_fs_info *fs_info,
btrfs_set_max_workers(&fs_info->generic_worker, new_pool_size);
btrfs_workqueue_set_max(fs_info->workers, new_pool_size);
btrfs_workqueue_set_max(fs_info->delalloc_workers, new_pool_size);
btrfs_set_max_workers(&fs_info->submit_workers, new_pool_size);
btrfs_workqueue_set_max(fs_info->submit_workers, new_pool_size);
btrfs_set_max_workers(&fs_info->caching_workers, new_pool_size);
btrfs_set_max_workers(&fs_info->fixup_workers, new_pool_size);
btrfs_set_max_workers(&fs_info->endio_workers, new_pool_size);

9
fs/btrfs/volumes.c
View File

@ -415,7 +415,8 @@ static noinline void run_scheduled_bios(struct btrfs_device *device)
device->running_pending = 1;
spin_unlock(&device->io_lock);
btrfs_requeue_work(&device->work);
btrfs_queue_work(fs_info->submit_workers,
&device->work);
goto done;
}
/* unplug every 64 requests just for good measure */
@ -439,7 +440,7 @@ static noinline void run_scheduled_bios(struct btrfs_device *device)
blk_finish_plug(&plug);
}
static void pending_bios_fn(struct btrfs_work *work)
static void pending_bios_fn(struct btrfs_work_struct *work)
{
struct btrfs_device *device;
@ -5379,7 +5380,7 @@ static noinline void btrfs_schedule_bio(struct btrfs_root *root,
spin_unlock(&device->io_lock);
if (should_queue)
btrfs_queue_worker(&root->fs_info->submit_workers,
btrfs_queue_work(root->fs_info->submit_workers,
&device->work);
}
@ -5668,7 +5669,7 @@ struct btrfs_device *btrfs_alloc_device(struct btrfs_fs_info *fs_info,
else
generate_random_uuid(dev->uuid);
dev->work.func = pending_bios_fn;
btrfs_init_work(&dev->work, pending_bios_fn, NULL, NULL);
return dev;
}

2
fs/btrfs/volumes.h
View File

@ -95,7 +95,7 @@ struct btrfs_device {
/* per-device scrub information */
struct scrub_ctx *scrub_device;
struct btrfs_work work;
struct btrfs_work_struct work;
struct rcu_head rcu;
struct work_struct rcu_work;