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| author | Zhang Yanfei <zhangyanfei@cn.fujitsu.com> | 2013-07-09 02:59:56 +0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-07-09 21:33:21 +0400 |
| commit | b8e748b6c32999f221ea4786557b8e7e6c4e4e7a (patch) | |
| tree | f017d59c2b8bf3ba4df1b742e643a3fe1a83a3b4 | |
| parent | 9da3f59fbdb57c9447ddb42681f6ab98faef353a (diff) | |
| download | linux-b8e748b6c32999f221ea4786557b8e7e6c4e4e7a.tar.xz | |
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 <zhangyanfei@cn.fujitsu.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Mel Gorman <mel@csn.ul.ie>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | mm/vmalloc.c | 3 |
1 files changed, 0 insertions, 3 deletions
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); |