zte's code,first commit
Change-Id: I9a04da59e459a9bc0d67f101f700d9d7dc8d681b
diff --git a/ap/build/uClibc/libc/sysdeps/linux/mips/readahead.c b/ap/build/uClibc/libc/sysdeps/linux/mips/readahead.c
new file mode 100644
index 0000000..9157c27
--- /dev/null
+++ b/ap/build/uClibc/libc/sysdeps/linux/mips/readahead.c
@@ -0,0 +1,41 @@
+/* Provide kernel hint to read ahead.
+ Copyright (C) 2002, 2003, 2004 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <errno.h>
+#include <fcntl.h>
+#include <sys/types.h>
+#include <sys/syscall.h>
+
+#ifdef __UCLIBC_HAS_LFS__
+#include <_lfs_64.h>
+# ifdef __NR_readahead
+
+ssize_t readahead(int fd, off64_t offset, size_t count)
+{
+# if _MIPS_SIM == _ABIO32
+ return INLINE_SYSCALL (readahead, 5, fd, 0,
+ __LONG_LONG_PAIR ((off_t) (offset >> 32), (off_t) offset),
+ count);
+# else /* N32 || N64 */
+ return INLINE_SYSCALL (readahead, 3, fd, offset, count);
+# endif
+}
+
+# endif
+#endif