[dpdk-stable] patch 'memzone: fix size on reserving biggest memzone' has been queued to stable release 18.02.2

[luca.boccassi at gmail.com]

Hi,

FYI, your patch has been queued to stable release 18.02.2

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 05/16/18. So please
shout if anyone has objections.

Thanks.

Luca Boccassi

---
>From f540e11675052571c6b885e185e3b9ad90b7d444 Mon Sep 17 00:00:00 2001
From: Anatoly Burakov <anatoly.burakov at intel.com>
Date: Thu, 3 May 2018 17:00:47 +0100
Subject: [PATCH] memzone: fix size on reserving biggest memzone

[ upstream commit a82377cab87cea35bdd135fa8b8c4c485e2389f7 ]

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

Fixes: fafcc11985a2 ("mem: rework memzone to be allocated by malloc")

Signed-off-by: Anatoly Burakov <anatoly.burakov at intel.com>
Acked-by: Konstantin Ananyev <konstantin.ananyev at 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 1ab3ade2d..56edc492d 100644
--- a/lib/librte_eal/common/eal_common_memzone.c
+++ b/lib/librte_eal/common/eal_common_memzone.c
@@ -225,7 +225,8 @@ 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->ms->hugepage_sz;
 	mz->socket_id = elem->ms->socket_id;
 	mz->flags = 0;
-- 
2.14.2