[dpdk-dev] [PATCH] memzone: fix memzone size on reserving biggest memzone

[Anatoly Burakov]

Size of malloc heap elements include overhead, which sould not
be counted as part of memzone.

Fixes: fafcc11985a2 ("mem: rework memzone to be allocated by malloc")
Cc: sta...@dpdk.org

Signed-off-by: Anatoly Burakov <anatoly.bura...@intel.com>
---
 lib/librte_eal/common/eal_common_memzone.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/lib/librte_eal/common/eal_common_memzone.c 
b/lib/librte_eal/common/eal_common_memzone.c
index bce3321..0595b3a 100644
--- a/lib/librte_eal/common/eal_common_memzone.c
+++ b/lib/librte_eal/common/eal_common_memzone.c
@@ -213,7 +213,8 @@ memzone_reserve_aligned_thread_unsafe(const char *name, 
size_t len,
        snprintf(mz->name, sizeof(mz->name), "%s", name);
        mz->iova = rte_malloc_virt2iova(mz_addr);
        mz->addr = mz_addr;
-       mz->len = (requested_len == 0 ? elem->size : requested_len);
+       mz->len = (requested_len == 0 ?
+                       (elem->size - MALLOC_ELEM_OVERHEAD) : requested_len);
        mz->hugepage_sz = elem->msl->page_sz;
        mz->socket_id = elem->msl->socket_id;
        mz->flags = 0;
-- 
2.7.4