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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>
This commit is contained in:
Sergey Senozhatsky 2014-06-25 00:00:44 +09:00 committed by Chris Mason
parent 5588383ece
commit c39aa7056f
1 changed files with 1 additions and 1 deletions
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fs/btrfs/compression.c
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@ -821,7 +821,7 @@ static void free_workspace(int type, struct list_head *workspace)
spin_lock(workspace_lock);
if (*num_workspace < num_online_cpus()) {
list_add_tail(workspace, idle_workspace);
list_add(workspace, idle_workspace);
(*num_workspace)++;
spin_unlock(workspace_lock);
goto wake;