From: Zhang Yanfei Date: Thu, 27 Jun 2013 23:52:26 +0000 (+1000) Subject: mm/vmalloc.c: remove alloc_map from vmap_block X-Git-Tag: next-20130628~3^2~380 X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=acaab48e63fb54b150b4b6660410b471cfff3e56;p=karo-tx-linux.git mm/vmalloc.c: remove alloc_map from vmap_block As we have removed the dead code in the vb_alloc, it seems there is no place to use the alloc_map. So there is no reason to maintain the alloc_map in vmap_block. Signed-off-by: Zhang Yanfei Cc: Johannes Weiner Cc: Mel Gorman Signed-off-by: Andrew Morton --- diff --git a/mm/vmalloc.c b/mm/vmalloc.c index 99d045a0a0eb..7ac2a1f8358a 100644 --- a/mm/vmalloc.c +++ b/mm/vmalloc.c @@ -754,7 +754,6 @@ struct vmap_block { struct vmap_area *va; struct vmap_block_queue *vbq; unsigned long free, dirty; - DECLARE_BITMAP(alloc_map, VMAP_BBMAP_BITS); DECLARE_BITMAP(dirty_map, VMAP_BBMAP_BITS); struct list_head free_list; struct rcu_head rcu_head; @@ -820,7 +819,6 @@ static struct vmap_block *new_vmap_block(gfp_t gfp_mask) vb->va = va; vb->free = VMAP_BBMAP_BITS; vb->dirty = 0; - bitmap_zero(vb->alloc_map, VMAP_BBMAP_BITS); bitmap_zero(vb->dirty_map, VMAP_BBMAP_BITS); INIT_LIST_HEAD(&vb->free_list); @@ -873,7 +871,6 @@ static void purge_fragmented_blocks(int cpu) if (vb->free + vb->dirty == VMAP_BBMAP_BITS && vb->dirty != VMAP_BBMAP_BITS) { vb->free = 0; /* prevent further allocs after releasing lock */ vb->dirty = VMAP_BBMAP_BITS; /* prevent purging it again */ - bitmap_fill(vb->alloc_map, VMAP_BBMAP_BITS); bitmap_fill(vb->dirty_map, VMAP_BBMAP_BITS); spin_lock(&vbq->lock); list_del_rcu(&vb->free_list);