Commit c39aa705 authored Jun 25, 2014 by Sergey Senozhatsky Committed by Chris Mason Jun 28, 2014

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>

parent 5588383e

fs/btrfs/compression.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -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;