From 883d4cae4a2b01a05193cf2665c77b7489a8b6a0 Mon Sep 17 00:00:00 2001 From: Mark Fasheh Date: Mon, 5 Jun 2006 16:41:00 -0400 Subject: ocfs2: allocation hints Record the most recently used allocation group on the allocation context, so that subsequent allocations can attempt to optimize for contiguousness. Local alloc especially should benefit from this as the current chain search tends to let it spew across the disk. Signed-off-by: Mark Fasheh --- fs/ocfs2/suballoc.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'fs/ocfs2/suballoc.h') diff --git a/fs/ocfs2/suballoc.h b/fs/ocfs2/suballoc.h index a76c82a7ceac..c787838d1052 100644 --- a/fs/ocfs2/suballoc.h +++ b/fs/ocfs2/suballoc.h @@ -49,6 +49,8 @@ struct ocfs2_alloc_context { u16 ac_chain; int ac_allow_chain_relink; group_search_t *ac_group_search; + + u64 ac_last_group; }; void ocfs2_free_alloc_context(struct ocfs2_alloc_context *ac); -- cgit v1.2.3