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btrfs compression: reuse recently used workspace
Add compression `workspace' in free_workspace() to `idle_workspace' list head, instead of tail. So we have better chances to reuse most recently used `workspace'. Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Reviewed-by: David Sterba <dsterba@suse.cz> Signed-off-by: Chris Mason <clm@fb.com>
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@ -821,7 +821,7 @@ static void free_workspace(int type, struct list_head *workspace)
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spin_lock(workspace_lock);
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if (*num_workspace < num_online_cpus()) {
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list_add_tail(workspace, idle_workspace);
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list_add(workspace, idle_workspace);
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(*num_workspace)++;
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spin_unlock(workspace_lock);
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goto wake;
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