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btrfs: Replace fs_info->qgroup_rescan_worker workqueue with btrfs_workqueue.

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Replace the fs_info->qgroup_rescan_worker 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 10:46:16 +08:00 • committed by Josef Bacik
parent 5b3bc44e2e
commit fc97fab0ea
3 changed files with 16 additions and 15 deletions
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4
fs/btrfs/ctree.h
View file

@ -1648,9 +1648,9 @@ struct btrfs_fs_info {
/* qgroup rescan items */ /* qgroup rescan items */
struct mutex qgroup_rescan_lock; /* protects the progress item */ struct mutex qgroup_rescan_lock; /* protects the progress item */
struct btrfs_key qgroup_rescan_progress; struct btrfs_key qgroup_rescan_progress;
struct btrfs_workers qgroup_rescan_workers; struct btrfs_workqueue_struct *qgroup_rescan_workers;
struct completion qgroup_rescan_completion; struct completion qgroup_rescan_completion;
struct btrfs_work qgroup_rescan_work; struct btrfs_work_struct qgroup_rescan_work;
/* filesystem state */ /* filesystem state */
unsigned long fs_state; unsigned long fs_state;

10
fs/btrfs/disk-io.c
View file

@ -2010,7 +2010,7 @@ static void btrfs_stop_all_workers(struct btrfs_fs_info *fs_info)
btrfs_destroy_workqueue(fs_info->caching_workers); btrfs_destroy_workqueue(fs_info->caching_workers);
btrfs_destroy_workqueue(fs_info->readahead_workers); btrfs_destroy_workqueue(fs_info->readahead_workers);
btrfs_destroy_workqueue(fs_info->flush_workers); btrfs_destroy_workqueue(fs_info->flush_workers);
btrfs_stop_workers(&fs_info->qgroup_rescan_workers); btrfs_destroy_workqueue(fs_info->qgroup_rescan_workers);
} }
static void free_root_extent_buffers(struct btrfs_root *root) static void free_root_extent_buffers(struct btrfs_root *root)
@ -2523,15 +2523,14 @@ int open_ctree(struct super_block *sb,
btrfs_alloc_workqueue("delayed-meta", flags, max_active, 0); btrfs_alloc_workqueue("delayed-meta", flags, max_active, 0);
fs_info->readahead_workers = fs_info->readahead_workers =
btrfs_alloc_workqueue("readahead", flags, max_active, 2); btrfs_alloc_workqueue("readahead", flags, max_active, 2);
btrfs_init_workers(&fs_info->qgroup_rescan_workers, "qgroup-rescan", 1, fs_info->qgroup_rescan_workers =
&fs_info->generic_worker); btrfs_alloc_workqueue("qgroup-rescan", flags, 1, 0);
/* /*
* btrfs_start_workers can really only fail because of ENOMEM so just * btrfs_start_workers can really only fail because of ENOMEM so just
* return -ENOMEM if any of these fail. * return -ENOMEM if any of these fail.
*/ */
ret = btrfs_start_workers(&fs_info->generic_worker); ret = btrfs_start_workers(&fs_info->generic_worker);
ret |= btrfs_start_workers(&fs_info->qgroup_rescan_workers);
if (ret) { if (ret) {
err = -ENOMEM; err = -ENOMEM;
goto fail_sb_buffer; goto fail_sb_buffer;
@ -2543,7 +2542,8 @@ int open_ctree(struct super_block *sb,
fs_info->endio_write_workers && fs_info->endio_raid56_workers && fs_info->endio_write_workers && fs_info->endio_raid56_workers &&
fs_info->endio_freespace_worker && fs_info->rmw_workers && fs_info->endio_freespace_worker && fs_info->rmw_workers &&
fs_info->caching_workers && fs_info->readahead_workers && fs_info->caching_workers && fs_info->readahead_workers &&
fs_info->fixup_workers && fs_info->delayed_workers)) { fs_info->fixup_workers && fs_info->delayed_workers &&
fs_info->qgroup_rescan_workers)) {
err = -ENOMEM; err = -ENOMEM;
goto fail_sb_buffer; goto fail_sb_buffer;
} }

17
fs/btrfs/qgroup.c
View file

@ -1509,8 +1509,8 @@ int btrfs_run_qgroups(struct btrfs_trans_handle *trans,
ret = qgroup_rescan_init(fs_info, 0, 1); ret = qgroup_rescan_init(fs_info, 0, 1);
if (!ret) { if (!ret) {
qgroup_rescan_zero_tracking(fs_info); qgroup_rescan_zero_tracking(fs_info);
btrfs_queue_worker(&fs_info->qgroup_rescan_workers, btrfs_queue_work(fs_info->qgroup_rescan_workers,
&fs_info->qgroup_rescan_work); &fs_info->qgroup_rescan_work);
} }
ret = 0; ret = 0;
} }
@ -1984,7 +1984,7 @@ out:
return ret; return ret;
} }
static void btrfs_qgroup_rescan_worker(struct btrfs_work *work) static void btrfs_qgroup_rescan_worker(struct btrfs_work_struct *work)
{ {
struct btrfs_fs_info *fs_info = container_of(work, struct btrfs_fs_info, struct btrfs_fs_info *fs_info = container_of(work, struct btrfs_fs_info,
qgroup_rescan_work); qgroup_rescan_work);
@ -2095,7 +2095,8 @@ qgroup_rescan_init(struct btrfs_fs_info *fs_info, u64 progress_objectid,
memset(&fs_info->qgroup_rescan_work, 0, memset(&fs_info->qgroup_rescan_work, 0,
sizeof(fs_info->qgroup_rescan_work)); sizeof(fs_info->qgroup_rescan_work));
fs_info->qgroup_rescan_work.func = btrfs_qgroup_rescan_worker; btrfs_init_work(&fs_info->qgroup_rescan_work,
btrfs_qgroup_rescan_worker, NULL, NULL);
if (ret) { if (ret) {
err: err:
@ -2158,8 +2159,8 @@ btrfs_qgroup_rescan(struct btrfs_fs_info *fs_info)
qgroup_rescan_zero_tracking(fs_info); qgroup_rescan_zero_tracking(fs_info);
btrfs_queue_worker(&fs_info->qgroup_rescan_workers, btrfs_queue_work(fs_info->qgroup_rescan_workers,
&fs_info->qgroup_rescan_work); &fs_info->qgroup_rescan_work);
return 0; return 0;
} }
@ -2190,6 +2191,6 @@ void
btrfs_qgroup_rescan_resume(struct btrfs_fs_info *fs_info) btrfs_qgroup_rescan_resume(struct btrfs_fs_info *fs_info)
{ {
if (fs_info->qgroup_flags & BTRFS_QGROUP_STATUS_FLAG_RESCAN) if (fs_info->qgroup_flags & BTRFS_QGROUP_STATUS_FLAG_RESCAN)
btrfs_queue_worker(&fs_info->qgroup_rescan_workers, btrfs_queue_work(fs_info->qgroup_rescan_workers,
&fs_info->qgroup_rescan_work); &fs_info->qgroup_rescan_work);
} }