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authorChristoph Lameter <clameter@sgi.com>2007-07-17 04:03:21 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-07-17 10:23:01 -0700
commitef2ad80c7d255ed0449eda947c2d700635b7e0f5 (patch)
treebc44916bdb25de29c8211566a4b5a1c041fa8ab6 /mm/slub.c
parentd45f39cb06610ea456e1d689149b9becacda8b40 (diff)
downloadlinux-ef2ad80c7d255ed0449eda947c2d700635b7e0f5.tar.bz2
Slab allocators: consolidate code for krealloc in mm/util.c
The size of a kmalloc object is readily available via ksize(). ksize is provided by all allocators and thus we can implement krealloc in a generic way. Implement krealloc in mm/util.c and drop slab specific implementations of krealloc. Signed-off-by: Christoph Lameter <clameter@sgi.com> Acked-by: Pekka Enberg <penberg@cs.helsinki.fi> 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.c37
1 files changed, 0 insertions, 37 deletions
diff --git a/mm/slub.c b/mm/slub.c
index a18708821c1e..1b0a95d75dbb 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -2467,43 +2467,6 @@ int kmem_cache_shrink(struct kmem_cache *s)
}
EXPORT_SYMBOL(kmem_cache_shrink);
-/**
- * krealloc - reallocate memory. The contents will remain unchanged.
- * @p: object to reallocate memory for.
- * @new_size: how many bytes of memory are required.
- * @flags: the type of memory to allocate.
- *
- * The contents of the object pointed to are preserved up to the
- * lesser of the new and old sizes. If @p is %NULL, krealloc()
- * behaves exactly like kmalloc(). If @size is 0 and @p is not a
- * %NULL pointer, the object pointed to is freed.
- */
-void *krealloc(const void *p, size_t new_size, gfp_t flags)
-{
- void *ret;
- size_t ks;
-
- if (unlikely(!p || p == ZERO_SIZE_PTR))
- return kmalloc(new_size, flags);
-
- if (unlikely(!new_size)) {
- kfree(p);
- return ZERO_SIZE_PTR;
- }
-
- ks = ksize(p);
- if (ks >= new_size)
- return (void *)p;
-
- ret = kmalloc(new_size, flags);
- if (ret) {
- memcpy(ret, p, min(new_size, ks));
- kfree(p);
- }
- return ret;
-}
-EXPORT_SYMBOL(krealloc);
-
/********************************************************************
* Basic setup of slabs
*******************************************************************/