filesetup: add native fallocate

[fio.git] / filesetup.c

diff --git a/filesetup.c b/filesetup.c
index f3e3865ef20a788e49a1f14f98cbdd201f0735e5..38ad9edc6e206fd919309087bf4590dd76231ea1 100644 (file)
--- a/filesetup.c
+++ b/filesetup.c
@@ -38,6 +38,25 @@ static inline void clear_error(struct thread_data *td)
        td->verror[0] = '\0';
 }
 
+static inline int native_fallocate(struct thread_data *td, struct fio_file *f)
+{
+       bool success;
+
+       success = fio_fallocate(f, 0, f->real_file_size);
+       dprint(FD_FILE, "native fallocate of file %s size %llu was "
+                       "%ssuccessful\n", f->file_name,
+                       (unsigned long long) f->real_file_size,
+                       !success ? "un": "");
+
+       if (success)
+               return 0;
+
+       if (errno == ENOSYS)
+               dprint(FD_FILE, "native fallocate is not implemented\n");
+
+       return -1;
+}
+
 static void fallocate_file(struct thread_data *td, struct fio_file *f)
 {
        int r;
@@ -45,10 +64,16 @@ static void fallocate_file(struct thread_data *td, struct fio_file *f)
        if (td->o.fill_device)
                return;
 
-#ifdef CONFIG_POSIX_FALLOCATE
        switch (td->o.fallocate_mode) {
+       case FIO_FALLOCATE_NATIVE:
+               r = native_fallocate(td, f);
+               if (r != 0)
+                       log_err("fio: native_fallocate call failed: %s\n",
+                                       strerror(errno));
+               break;
        case FIO_FALLOCATE_NONE:
                break;
+#ifdef CONFIG_POSIX_FALLOCATE
        case FIO_FALLOCATE_POSIX:
                dprint(FD_FILE, "posix_fallocate file %s size %llu\n",
                                 f->file_name,
@@ -58,6 +83,7 @@ static void fallocate_file(struct thread_data *td, struct fio_file *f)
                if (r > 0)
                        log_err("fio: posix_fallocate fails: %s\n", strerror(r));
                break;
+#endif /* CONFIG_POSIX_FALLOCATE */
 #ifdef CONFIG_LINUX_FALLOCATE
        case FIO_FALLOCATE_KEEP_SIZE:
                dprint(FD_FILE, "fallocate(FALLOC_FL_KEEP_SIZE) "
@@ -74,7 +100,7 @@ static void fallocate_file(struct thread_data *td, struct fio_file *f)
                log_err("fio: unknown fallocate mode: %d\n", td->o.fallocate_mode);
                assert(0);
        }
-#endif /* CONFIG_POSIX_FALLOCATE */
+
 }
 
 /*