mem: make --no-huge use mmap instead of malloc

[dpdk.git] / lib / librte_eal / linuxapp / eal / eal_memory.c

diff --git a/lib/librte_eal/linuxapp/eal/eal_memory.c b/lib/librte_eal/linuxapp/eal/eal_memory.c
index d9cfb09..ae43f9e 100644 (file)
--- a/lib/librte_eal/linuxapp/eal/eal_memory.c
+++ b/lib/librte_eal/linuxapp/eal/eal_memory.c
@@ -1031,7 +1031,13 @@ rte_eal_hugepage_init(void)
 
        /* hugetlbfs can be disabled */
        if (internal_config.no_hugetlbfs) {
-               addr = malloc(internal_config.memory);
+               addr = mmap(NULL, internal_config.memory, PROT_READ | PROT_WRITE,
+                               MAP_PRIVATE | MAP_ANONYMOUS, 0, 0);
+               if (addr == MAP_FAILED) {
+                       RTE_LOG(ERR, EAL, "%s: mmap() failed: %s\n", __func__,
+                                       strerror(errno));
+                       return -1;
+               }
                mcfg->memseg[0].phys_addr = (phys_addr_t)(uintptr_t)addr;
                mcfg->memseg[0].addr = addr;
                mcfg->memseg[0].len = internal_config.memory;