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btrfs: don't needlessly create extent-refs kernel thread
The patch32b593bfcb
("Btrfs: remove no longer used function to run delayed refs asynchronously") removed the async delayed refs but the thread has been created, without any use. Remove it to avoid resource consumption. Fixes:32b593bfcb
("Btrfs: remove no longer used function to run delayed refs asynchronously") CC: stable@vger.kernel.org # 5.2+ Reviewed-by: Josef Bacik <josef@toxicpanda.com> Signed-off-by: David Sterba <dsterba@suse.com>
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2 changed files with 0 additions and 8 deletions
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@ -734,8 +734,6 @@ struct btrfs_fs_info {
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struct btrfs_workqueue *fixup_workers;
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struct btrfs_workqueue *delayed_workers;
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/* the extent workers do delayed refs on the extent allocation tree */
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struct btrfs_workqueue *extent_workers;
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struct task_struct *transaction_kthread;
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struct task_struct *cleaner_kthread;
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u32 thread_pool_size;
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@ -2008,7 +2008,6 @@ static void btrfs_stop_all_workers(struct btrfs_fs_info *fs_info)
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btrfs_destroy_workqueue(fs_info->readahead_workers);
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btrfs_destroy_workqueue(fs_info->flush_workers);
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btrfs_destroy_workqueue(fs_info->qgroup_rescan_workers);
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btrfs_destroy_workqueue(fs_info->extent_workers);
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/*
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* Now that all other work queues are destroyed, we can safely destroy
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* the queues used for metadata I/O, since tasks from those other work
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@ -2214,10 +2213,6 @@ static int btrfs_init_workqueues(struct btrfs_fs_info *fs_info,
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max_active, 2);
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fs_info->qgroup_rescan_workers =
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btrfs_alloc_workqueue(fs_info, "qgroup-rescan", flags, 1, 0);
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fs_info->extent_workers =
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btrfs_alloc_workqueue(fs_info, "extent-refs", flags,
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min_t(u64, fs_devices->num_devices,
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max_active), 8);
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if (!(fs_info->workers && fs_info->delalloc_workers &&
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fs_info->submit_workers && fs_info->flush_workers &&
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@ -2228,7 +2223,6 @@ static int btrfs_init_workqueues(struct btrfs_fs_info *fs_info,
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fs_info->endio_freespace_worker && fs_info->rmw_workers &&
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fs_info->caching_workers && fs_info->readahead_workers &&
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fs_info->fixup_workers && fs_info->delayed_workers &&
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fs_info->extent_workers &&
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fs_info->qgroup_rescan_workers)) {
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return -ENOMEM;
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}
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