[PATCH] eal: change alloc_sz calculation which may cause unnecessarily allocation

[Fidaullah Noonari]

In try_expand_heap() alloc_sz is calculated which may result in 
unnecessary allocation of whole huge page, this may cause allocation
limit from system or eal

In response to this mail:
<CAEYuUWCnRZNwxiOHEeTHw0Gy9aFJRLZtvAG9g=smuuvuemc...@mail.gmail.com>

Signed-off-by: Fidaullah Noonari <fidaullah.noon...@emumba.com>
---
 lib/eal/common/malloc_heap.c | 2 +-
 lib/eal/common/malloc_mp.c   | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/eal/common/malloc_heap.c b/lib/eal/common/malloc_heap.c
index 27a52266ad..e348e385e4 100644
--- a/lib/eal/common/malloc_heap.c
+++ b/lib/eal/common/malloc_heap.c
@@ -402,7 +402,7 @@ try_expand_heap_primary(struct malloc_heap *heap, uint64_t 
pg_sz,
        int n_segs;
        bool callback_triggered = false;
 
-       alloc_sz = RTE_ALIGN_CEIL(align + elt_size +
+       alloc_sz = RTE_ALIGN_CEIL(RTE_ALIGN_CEIL(align, elt_size) +
                        MALLOC_ELEM_OVERHEAD, pg_sz);
        n_segs = alloc_sz / pg_sz;
 
diff --git a/lib/eal/common/malloc_mp.c b/lib/eal/common/malloc_mp.c
index 2b8eb51067..1b79ed5e21 100644
--- a/lib/eal/common/malloc_mp.c
+++ b/lib/eal/common/malloc_mp.c
@@ -249,7 +249,7 @@ handle_alloc_request(const struct malloc_mp_req *m,
                return -1;
        }
 
-       alloc_sz = RTE_ALIGN_CEIL(ar->align + ar->elt_size +
+       alloc_sz = RTE_ALIGN_CEIL(RTE_ALIGN_CEIL(ar->align, ar->elt_size) +
                        MALLOC_ELEM_OVERHEAD, ar->page_sz);
        n_segs = alloc_sz / ar->page_sz;
 
-- 
2.25.1