diff options
author | Ben Greear <greearb@candelatech.com> | 2011-07-07 14:36:37 -0400 |
---|---|---|
committer | Pekka Enberg <penberg@kernel.org> | 2011-07-07 15:17:08 -0400 |
commit | d18a90dd85f8243ed20cdadb6d8a37d595df456d (patch) | |
tree | 35830bc434bfdb18605ff493b0a1406c3dcf8ac0 /include/linux/slub_def.h | |
parent | d6543e3935cec9f66b9647c24c2e44c68f8a91fd (diff) |
slub: Add method to verify memory is not freed
This is for tracking down suspect memory usage.
Acked-by: Christoph Lameter <cl@linux.com>
Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
Diffstat (limited to 'include/linux/slub_def.h')
-rw-r--r-- | include/linux/slub_def.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/include/linux/slub_def.h b/include/linux/slub_def.h index fd4fdc72bc8c..4b35c06dfbc5 100644 --- a/include/linux/slub_def.h +++ b/include/linux/slub_def.h | |||
@@ -218,6 +218,19 @@ kmalloc_order(size_t size, gfp_t flags, unsigned int order) | |||
218 | return ret; | 218 | return ret; |
219 | } | 219 | } |
220 | 220 | ||
221 | /** | ||
222 | * Calling this on allocated memory will check that the memory | ||
223 | * is expected to be in use, and print warnings if not. | ||
224 | */ | ||
225 | #ifdef CONFIG_SLUB_DEBUG | ||
226 | extern bool verify_mem_not_deleted(const void *x); | ||
227 | #else | ||
228 | static inline bool verify_mem_not_deleted(const void *x) | ||
229 | { | ||
230 | return true; | ||
231 | } | ||
232 | #endif | ||
233 | |||
221 | #ifdef CONFIG_TRACING | 234 | #ifdef CONFIG_TRACING |
222 | extern void * | 235 | extern void * |
223 | kmem_cache_alloc_trace(struct kmem_cache *s, gfp_t gfpflags, size_t size); | 236 | kmem_cache_alloc_trace(struct kmem_cache *s, gfp_t gfpflags, size_t size); |