From 748876bf1c45cd10f998f8578c434156eae53b7e Mon Sep 17 00:00:00 2001
From: Ulrich Drepper <drepper@gmail.com>
Date: Fri, 1 Apr 2011 11:15:08 -0400
Subject: Really implement fallocate{,64} and sync_file_range as cancellation
 points.

---
 sysdeps/unix/sysv/linux/fallocate.c | 22 +++++++++++++++++-----
 1 file changed, 17 insertions(+), 5 deletions(-)

(limited to 'sysdeps/unix/sysv/linux/fallocate.c')

diff --git a/sysdeps/unix/sysv/linux/fallocate.c b/sysdeps/unix/sysv/linux/fallocate.c
index dc2b4e9..a7d3ff0 100644
--- a/sysdeps/unix/sysv/linux/fallocate.c
+++ b/sysdeps/unix/sysv/linux/fallocate.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2007, 2009 Free Software Foundation, Inc.
+/* Copyright (C) 2007, 2009, 2011 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
@@ -18,7 +18,7 @@
 
 #include <errno.h>
 #include <fcntl.h>
-#include <sysdep.h>
+#include <sysdep-cancel.h>
 
 
 /* Reserve storage for the data of the file associated with FD.  */
@@ -26,9 +26,21 @@ int
 fallocate (int fd, int mode, __off_t offset, __off_t len)
 {
 #ifdef __NR_fallocate
-  return INLINE_SYSCALL (fallocate, 6, fd, mode,
-			 __LONG_LONG_PAIR (offset >> 31, offset),
-			 __LONG_LONG_PAIR (len >> 31, len));
+  if (SINGLE_THREAD_P)
+    return INLINE_SYSCALL (fallocate, 6, fd, mode,
+			   __LONG_LONG_PAIR (offset >> 31, offset),
+			   __LONG_LONG_PAIR (len >> 31, len));
+
+  int result;
+  int oldtype = LIBC_CANCEL_ASYNC ();
+
+  result = INLINE_SYSCALL (fallocate, 6, fd, mode,
+			   __LONG_LONG_PAIR (offset >> 31, offset),
+			   __LONG_LONG_PAIR (len >> 31, len));
+
+  LIBC_CANCEL_RESET (oldtype);
+
+  return result;
 #else
   __set_errno (ENOSYS);
   return -1;
-- 
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