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-rw-r--r--src/vppinfra/mem_bulk.c20
1 files changed, 16 insertions, 4 deletions
diff --git a/src/vppinfra/mem_bulk.c b/src/vppinfra/mem_bulk.c
index 0ede1b36786..ba8b2e94909 100644
--- a/src/vppinfra/mem_bulk.c
+++ b/src/vppinfra/mem_bulk.c
@@ -44,6 +44,12 @@ typedef struct
clib_mem_bulk_chunk_hdr_t *full_chunks, *avail_chunks;
} clib_mem_bulk_t;
+static inline uword
+bulk_chunk_size (clib_mem_bulk_t *b)
+{
+ return (uword) b->elts_per_chunk * b->elt_sz + b->chunk_hdr_sz;
+}
+
__clib_export clib_mem_bulk_handle_t
clib_mem_bulk_init (u32 elt_sz, u32 align, u32 min_elts_per_chunk)
{
@@ -60,13 +66,14 @@ clib_mem_bulk_init (u32 elt_sz, u32 align, u32 min_elts_per_chunk)
if (min_elts_per_chunk == 0)
min_elts_per_chunk = CLIB_MEM_BULK_DEFAULT_MIN_ELTS_PER_CHUNK;
+ CLIB_MEM_UNPOISON (b, sizeof (clib_mem_bulk_t));
clib_memset (b, 0, sizeof (clib_mem_bulk_t));
b->mspace = heap->mspace;
b->align = align;
b->elt_sz = round_pow2 (elt_sz, align);
b->chunk_hdr_sz = round_pow2 (sizeof (clib_mem_bulk_chunk_hdr_t), align);
b->elts_per_chunk = min_elts_per_chunk;
- sz = (uword) b->elts_per_chunk * b->elt_sz + b->chunk_hdr_sz;
+ sz = bulk_chunk_size (b);
b->chunk_align = max_pow2 (sz);
b->elts_per_chunk += (b->chunk_align - sz) / b->elt_sz;
return b;
@@ -77,6 +84,7 @@ clib_mem_bulk_destroy (clib_mem_bulk_handle_t h)
{
clib_mem_bulk_t *b = h;
clib_mem_bulk_chunk_hdr_t *c, *next;
+ void *ms = b->mspace;
c = b->full_chunks;
@@ -84,7 +92,8 @@ again:
while (c)
{
next = c->next;
- mspace_free (b->mspace, c);
+ CLIB_MEM_POISON (c, bulk_chunk_size (b));
+ mspace_free (ms, c);
c = next;
}
@@ -95,7 +104,8 @@ again:
goto again;
}
- mspace_free (b->mspace, b);
+ CLIB_MEM_POISON (b, sizeof (clib_mem_bulk_t));
+ mspace_free (ms, b);
}
static inline void *
@@ -136,8 +146,9 @@ clib_mem_bulk_alloc (clib_mem_bulk_handle_t h)
if (b->avail_chunks == 0)
{
- u32 i, sz = b->chunk_hdr_sz + b->elts_per_chunk * b->elt_sz;
+ u32 i, sz = bulk_chunk_size (b);
c = mspace_memalign (b->mspace, b->chunk_align, sz);
+ CLIB_MEM_UNPOISON (c, sz);
clib_memset (c, 0, sizeof (clib_mem_bulk_chunk_hdr_t));
b->avail_chunks = c;
c->n_free = b->elts_per_chunk;
@@ -181,6 +192,7 @@ clib_mem_bulk_free (clib_mem_bulk_handle_t h, void *p)
{
/* chunk is empty - give it back */
remove_from_chunk_list (&b->avail_chunks, c);
+ CLIB_MEM_POISON (c, bulk_chunk_size (b));
mspace_free (b->mspace, c);
return;
}