Messages in this thread Patch in this message | | | Subject | [PATCH 04/14] kmemleak: Add the slob memory allocation/freeing hooks | From | Catalin Marinas <> | Date | Fri, 24 Apr 2009 17:41:20 +0100 |
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This patch adds the callbacks to kmemleak_(alloc|free) functions from the slob allocator.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Acked-by: Matt Mackall <mpm@selenic.com> Acked-by: Pekka Enberg <penberg@cs.helsinki.fi> --- mm/slob.c | 7 +++++++ 1 files changed, 7 insertions(+), 0 deletions(-)
diff --git a/mm/slob.c b/mm/slob.c index a2d4ab3..3e7acbc 100644 --- a/mm/slob.c +++ b/mm/slob.c @@ -60,6 +60,7 @@ #include <linux/kernel.h> #include <linux/slab.h> #include <linux/mm.h> +#include <linux/kmemleak.h> #include <linux/cache.h> #include <linux/init.h> #include <linux/module.h> @@ -506,6 +507,7 @@ void *__kmalloc_node(size_t size, gfp_t gfp, int node) size, PAGE_SIZE << order, gfp, node); } + kmemleak_alloc(ret, size, 1, gfp); return ret; } EXPORT_SYMBOL(__kmalloc_node); @@ -518,6 +520,7 @@ void kfree(const void *block) if (unlikely(ZERO_OR_NULL_PTR(block))) return; + kmemleak_free(block); sp = slob_page(block); if (is_slob_page(sp)) { @@ -581,12 +584,14 @@ struct kmem_cache *kmem_cache_create(const char *name, size_t size, } else if (flags & SLAB_PANIC) panic("Cannot create slab cache %s\n", name); + kmemleak_alloc(c, sizeof(struct kmem_cache), 1, GFP_KERNEL); return c; } EXPORT_SYMBOL(kmem_cache_create); void kmem_cache_destroy(struct kmem_cache *c) { + kmemleak_free(c); slob_free(c, sizeof(struct kmem_cache)); } EXPORT_SYMBOL(kmem_cache_destroy); @@ -610,6 +615,7 @@ void *kmem_cache_alloc_node(struct kmem_cache *c, gfp_t flags, int node) if (c->ctor) c->ctor(b); + kmemleak_alloc_recursive(b, c->size, 1, c->flags, flags); return b; } EXPORT_SYMBOL(kmem_cache_alloc_node); @@ -632,6 +638,7 @@ static void kmem_rcu_free(struct rcu_head *head) void kmem_cache_free(struct kmem_cache *c, void *b) { + kmemleak_free_recursive(b, c->flags); if (unlikely(c->flags & SLAB_DESTROY_BY_RCU)) { struct slob_rcu *slob_rcu; slob_rcu = b + (c->size - sizeof(struct slob_rcu));
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