diff options
Diffstat (limited to 'lib/librte_eal/common/eal_common_memory.c')
| -rw-r--r-- | lib/librte_eal/common/eal_common_memory.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/lib/librte_eal/common/eal_common_memory.c b/lib/librte_eal/common/eal_common_memory.c index 6155752e..996877ef 100644 --- a/lib/librte_eal/common/eal_common_memory.c +++ b/lib/librte_eal/common/eal_common_memory.c @@ -35,7 +35,9 @@ #include <stdint.h> #include <stdlib.h> #include <stdarg.h> +#include <unistd.h> #include <inttypes.h> +#include <sys/mman.h> #include <sys/queue.h> #include <rte_memory.h> @@ -135,6 +137,16 @@ rte_eal_memdevice_init(void) return 0; } +/* Lock page in physical memory and prevent from swapping. */ +int +rte_mem_lock_page(const void *virt) +{ + unsigned long virtual = (unsigned long)virt; + int page_size = getpagesize(); + unsigned long aligned = (virtual & ~(page_size - 1)); + return mlock((void *)aligned, page_size); +} + /* init memory subsystem */ int rte_eal_memory_init(void) |