[PATCH] Support for mmap of hugetlb files as memory backing

[fio.git] / init.c

diff --git a/init.c b/init.c
index 0c888b8fcdca83a0bdc7691d2eb38202393ebcbb..edaec144f3aaaa5895339df4f2a703bdff7d9c48 100644 (file)
--- a/init.c
+++ b/init.c
@@ -833,6 +833,29 @@ static int str_mem_cb(void *data, const char *mem)
        if (!strncmp(mem, "malloc", 6)) {
                td->mem_type = MEM_MALLOC;
                return 0;
+       } else if (!strncmp(mem, "mmaphuge", 8)) {
+#ifdef FIO_HAVE_HUGETLB
+               char *hugefile;
+
+               /*
+                * mmaphuge must be appended with the actual file
+                */
+               hugefile = strstr(mem, ":");
+               if (!hugefile) {
+                       log_err("fio: mmaphuge:/path/to/file\n");
+                       return 1;
+               }
+
+               hugefile++;
+               strip_blank_front(&hugefile);
+               strip_blank_end(hugefile);
+               td->hugefile = strdup(hugefile);
+               td->mem_type = MEM_MMAPHUGE;
+               return 0;
+#else
+               log_err("fio: mmaphuge not available\n");
+               return 1;
+#endif
        } else if (!strncmp(mem, "mmap", 4)) {
                td->mem_type = MEM_MMAP;
                return 0;
@@ -849,7 +872,7 @@ static int str_mem_cb(void *data, const char *mem)
                return 0;
        }
 
-       log_err("fio: mem type: malloc, shm, mmap, shmhuge\n");
+       log_err("fio: mem type: malloc, shm, shmhuge, mmap, mmaphuge\n");
        return 1;
 }