2008-02-10 10:22:28

by Marcin Ślusarz

[permalink] [raw]
Subject: [PATCH resend] slab: avoid double initialization & do initialization in 1 place

- alloc_slabmgmt: initialize all slab fields in 1 place
- slab->nodeid was initialized twice: in alloc_slabmgmt
and immediately after it in cache_grow

Signed-off-by: Marcin Slusarz <[email protected]>
CC: Christoph Lameter <[email protected]>
Reviewed-by: Pekka Enberg <[email protected]>
---
mm/slab.c | 3 +--
1 files changed, 1 insertions(+), 2 deletions(-)

diff --git a/mm/slab.c b/mm/slab.c
index 40c00da..473e6c2 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -2630,6 +2630,7 @@ static struct slab *alloc_slabmgmt(struct kmem_cache *cachep, void *objp,
slabp->colouroff = colour_off;
slabp->s_mem = objp + colour_off;
slabp->nodeid = nodeid;
+ slabp->free = 0;
return slabp;
}

@@ -2683,7 +2684,6 @@ static void cache_init_objs(struct kmem_cache *cachep,
slab_bufctl(slabp)[i] = i + 1;
}
slab_bufctl(slabp)[i - 1] = BUFCTL_END;
- slabp->free = 0;
}

static void kmem_flagcheck(struct kmem_cache *cachep, gfp_t flags)
@@ -2816,7 +2816,6 @@ static int cache_grow(struct kmem_cache *cachep,
if (!slabp)
goto opps1;

- slabp->nodeid = nodeid;
slab_map_pages(cachep, slabp, objp);

cache_init_objs(cachep, slabp);
--
1.5.3.7