Add support for name_to_handle_at and open_by_handle.

1 files changed, 49 insertions, 7 deletions

diff --git a/sysdeps/unix/sysv/linux/x86_64/bits/fcntl.h b/sysdeps/unix/sysv/linux/x86_64/bits/fcntl.h
index ac029fddae..925c813cb7 100644
--- a/sysdeps/unix/sysv/linux/x86_64/bits/fcntl.h
+++ b/sysdeps/unix/sysv/linux/x86_64/bits/fcntl.h
@@ -1,5 +1,5 @@
 /* O_*, F_*, FD_* bit values for Linux/x86-64.
-   Copyright (C) 2001,2002,2004,2006,2007,2009,2010
+   Copyright (C) 2001,2002,2004,2006,2007,2009,2010,2011
    Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
@@ -247,6 +247,19 @@ struct f_owner_ex
 					   we splice from/to).  */
 # define SPLICE_F_MORE		4	/* Expect more data.  */
 # define SPLICE_F_GIFT		8	/* Pages passed in are a gift.  */
+
+
+/* File handle structure.  */
+struct file_handle
+{
+  unsigned int handle_bytes;
+  int handle_type;
+  /* File identifier.  */
+  unsigned char f_handle[0];
+};
+
+/* Maximum handle size (for now).  */
+# define MAX_HANDLE_SZ	128
 #endif
 
 __BEGIN_DECLS
@@ -258,25 +271,40 @@ extern ssize_t readahead (int __fd, __off64_t __offset, size_t __count)
     __THROW;
 
 
-/* Selective file content synch'ing.  */
+/* Selective file content synch'ing.
+
+   This function is a possible cancellation point and therefore not
+   marked with __THROW.  */
 extern int sync_file_range (int __fd, __off64_t __offset, __off64_t __count,
 			    unsigned int __flags);
 
 
-/* Splice address range into a pipe.  */
+/* Splice address range into a pipe.
+
+   This function is a possible cancellation point and therefore not
+   marked with __THROW.  */
 extern ssize_t vmsplice (int __fdout, const struct iovec *__iov,
 			 size_t __count, unsigned int __flags);
 
-/* Splice two files together.  */
+/* Splice two files together.
+
+   This function is a possible cancellation point and therefore not
+   marked with __THROW.  */
 extern ssize_t splice (int __fdin, __off64_t *__offin, int __fdout,
 		       __off64_t *__offout, size_t __len,
 		       unsigned int __flags);
 
-/* In-kernel implementation of tee for pipe buffers.  */
+/* In-kernel implementation of tee for pipe buffers.
+
+   This function is a possible cancellation point and therefore not
+   marked with __THROW.  */
 extern ssize_t tee (int __fdin, int __fdout, size_t __len,
 		    unsigned int __flags);
 
-/* Reserve storage for the data of the file associated with FD.  */
+/* Reserve storage for the data of the file associated with FD.
+
+   This function is a possible cancellation point and therefore not
+   marked with __THROW.  */
 # ifndef __USE_FILE_OFFSET64
 extern int fallocate (int __fd, int __mode, __off_t __offset, __off_t __len);
 # else
@@ -292,6 +320,20 @@ extern int __REDIRECT (fallocate, (int __fd, int __mode, __off64_t __offset,
 extern int fallocate64 (int __fd, int __mode, __off64_t __offset,
 			__off64_t __len);
 # endif
-#endif
+
+
+/* Map file name to file handle.  */
+extern int name_to_handle_at (int __dfd, const char *__name,
+			      struct file_handle *__handle, int *__mnt_id,
+			      int __flags) __THROW;
+
+/* Open file using the file handle.
+
+   This function is a possible cancellation point and therefore not
+   marked with __THROW.  */
+extern int open_by_handle (int __mountdirfd, struct file_handle *__handle,
+			   int __flags);
+
+#endif	/* use GNU */
 
 __END_DECLS