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authorChristoph Lameter <clameter@sgi.com>2007-05-06 14:49:41 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-05-07 12:12:54 -0700
commitb49af68ff9fc5d6e0d96704a1843968b91cc73c6 (patch)
treeeb5e6d9425a9069cdfc45b09a1d0f61f1419d2c2 /mm/slub.c
parent6d7779538f765963ced45a3fa4bed7ba8d2c277d (diff)
Add virt_to_head_page and consolidate code in slab and slub
Signed-off-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/slub.c')
-rw-r--r--mm/slub.c10
1 files changed, 4 insertions, 6 deletions
diff --git a/mm/slub.c b/mm/slub.c
index 8fa1c6e937f5..347c11e80d8e 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -1323,9 +1323,7 @@ void kmem_cache_free(struct kmem_cache *s, void *x)
{
struct page * page;
- page = virt_to_page(x);
-
- page = compound_head(page);
+ page = virt_to_head_page(x);
if (unlikely(PageError(page) && (s->flags & SLAB_STORE_USER)))
set_tracking(s, x, TRACK_FREE);
@@ -1336,7 +1334,7 @@ EXPORT_SYMBOL(kmem_cache_free);
/* Figure out on which slab object the object resides */
static struct page *get_object_page(const void *x)
{
- struct page *page = compound_head(virt_to_page(x));
+ struct page *page = virt_to_head_page(x);
if (!PageSlab(page))
return NULL;
@@ -2076,7 +2074,7 @@ void kfree(const void *x)
if (!x)
return;
- page = compound_head(virt_to_page(x));
+ page = virt_to_head_page(x);
s = page->slab;
@@ -2112,7 +2110,7 @@ void *krealloc(const void *p, size_t new_size, gfp_t flags)
return NULL;
}
- page = compound_head(virt_to_page(p));
+ page = virt_to_head_page(p);
new_cache = get_slab(new_size, flags);