Add <sys/statvfs.h>.

Bug: 2512019
Change-Id: I6e7fd3fa281977cc4bc270481a95416b5b2dc351
diff --git a/libc/include/sys/statvfs.h b/libc/include/sys/statvfs.h
new file mode 100644
index 0000000..e910c03
--- /dev/null
+++ b/libc/include/sys/statvfs.h
@@ -0,0 +1,55 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef _SYS_STATVFS_H_
+#define _SYS_STATVFS_H_
+
+#include <stdint.h>
+#include <sys/cdefs.h>
+#include <sys/types.h>
+
+__BEGIN_DECLS
+
+struct statvfs {
+  unsigned long f_bsize;
+  unsigned long f_frsize;
+  fsblkcnt_t    f_blocks;
+  fsblkcnt_t    f_bfree;
+  fsblkcnt_t    f_bavail;
+  fsfilcnt_t    f_files;
+  fsfilcnt_t    f_ffree;
+  fsfilcnt_t    f_favail;
+  unsigned long f_fsid;
+  unsigned long f_flag;
+  unsigned long f_namemax;
+};
+
+#define ST_RDONLY      0x0001
+#define ST_NOSUID      0x0002
+#define ST_NODEV       0x0004
+#define ST_NOEXEC      0x0008
+#define ST_SYNCHRONOUS 0x0010
+#define ST_MANDLOCK    0x0040
+#define ST_NOATIME     0x0400
+#define ST_NODIRATIME  0x0800
+#define ST_RELATIME    0x1000
+
+extern int statvfs(const char* __restrict, struct statvfs* __restrict) __nonnull((1, 2));
+extern int fstatvfs(int, struct statvfs*) __nonnull((2));
+
+__END_DECLS
+
+#endif /* _SYS_STATVFS_H_ */