* sysdeps/unix/sysv/linux/Versions: Export sync_file_range with

	GLIBC_2.5.
	* sysdeps/unix/sysv/linux/sparc/bits/fcntl.h: Remove
	LINUX_FADV_ASYNC_WRITE and LINUX_FADV_WRITE_WAIT.
	Declare sync_file_range and splice.
	* sysdeps/unix/sysv/linux/ia64/bits/fcntl.h: Likewise.
	* sysdeps/unix/sysv/linux/sh/bits/fcntl.h: Likewise.
	* sysdeps/unix/sysv/linux/i386/bits/fcntl.h: Likewise.
	* sysdeps/unix/sysv/linux/s390/bits/fcntl.h: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/bits/fcntl.h: Likewise.
	* sysdeps/unix/sysv/linux/alpha/bits/fcntl.h: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/bits/fcntl.h: Likewise.
	* sysdeps/unix/sysv/linux/wordsize-64/syscalls.list: Add
	sync_file_range.
	* sysdeps/unix/sysv/linux/i386/sync_file_range.S: New file.

12 files changed, 281 insertions, 25 deletions

diff --git a/ChangeLog b/ChangeLog
index 45764db64a..926603a381 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,20 @@
 2006-03-31  Ulrich Drepper  <drepper@redhat.com>
 
+	* sysdeps/unix/sysv/linux/Versions: Export sync_file_range with
+	GLIBC_2.5.
+	* sysdeps/unix/sysv/linux/sparc/bits/fcntl.h: Remove
+	LINUX_FADV_ASYNC_WRITE and LINUX_FADV_WRITE_WAIT.
+	Declare sync_file_range and splice.
+	* sysdeps/unix/sysv/linux/ia64/bits/fcntl.h: Likewise.
+	* sysdeps/unix/sysv/linux/sh/bits/fcntl.h: Likewise.
+	* sysdeps/unix/sysv/linux/i386/bits/fcntl.h: Likewise.
+	* sysdeps/unix/sysv/linux/s390/bits/fcntl.h: Likewise.
+	* sysdeps/unix/sysv/linux/x86_64/bits/fcntl.h: Likewise.
+	* sysdeps/unix/sysv/linux/alpha/bits/fcntl.h: Likewise.
+	* sysdeps/unix/sysv/linux/powerpc/bits/fcntl.h: Likewise.
+	* sysdeps/unix/sysv/linux/wordsize-64/syscalls.list: Add
+	sync_file_range.
+	* sysdeps/unix/sysv/linux/i386/sync_file_range.S: New file.
 	* sysdeps/unix/sysv/linux/syscalls.list: Add splice syscall.
 	* sysdeps/unix/sysv/linux/Versions: Export splice with GLIBC_2.5
 	version.
diff --git a/sysdeps/unix/sysv/linux/Versions b/sysdeps/unix/sysv/linux/Versions
index d7f71155dc..b2e7ee7801 100644
--- a/sysdeps/unix/sysv/linux/Versions
+++ b/sysdeps/unix/sysv/linux/Versions
@@ -124,7 +124,7 @@ libc {
     _sys_errlist; sys_errlist; _sys_nerr; sys_nerr;
   }
   GLIBC_2.5 {
-    splice;
+    splice; sync_file_range;
   }
   GLIBC_PRIVATE {
     # functions used in other libraries
diff --git a/sysdeps/unix/sysv/linux/alpha/bits/fcntl.h b/sysdeps/unix/sysv/linux/alpha/bits/fcntl.h
index 0f32cec876..f06201c25f 100644
--- a/sysdeps/unix/sysv/linux/alpha/bits/fcntl.h
+++ b/sysdeps/unix/sysv/linux/alpha/bits/fcntl.h
@@ -173,16 +173,37 @@ struct flock64
 # define POSIX_FADV_NOREUSE	5 /* Data will be accessed once.  */
 #endif
 
-/* Linux-specific operations for posix_fadvise.  */
+
 #ifdef __USE_GNU
-# define LINUX_FADV_ASYNC_WRITE	32 /* Start writeout on range.  */
-# define LINUX_FADV_WRITE_WAIT	33 /* Wait upon writeout to range.  */
+# define SYNC_FILE_RANGE_WAIT_BEFORE	1 /* Wait upon writeout of all pages
+					     in the range before performing the
+					     write.  */
+# define SYNC_FILE_RANGE_WRITE		2 /* Initiate writeout of all those
+					     dirty pages in the range which are
+					     not presently under writeback.  */
+# define SYNC_FILE_RANGE_WAIT_AFTER	4 /* Wait upon writeout of all pages in
+					     the range after performing the
+					     write.  */
 #endif
 
 __BEGIN_DECLS
 
+#ifdef __USE_GNU
+
 /* Provide kernel hint to read ahead.  */
 extern ssize_t readahead (int __fd, __off64_t __offset, size_t __count)
     __THROW;
 
+
+/* Selective file content synch'ing.  */
+extern int sync_file_range (int __fd, __off64_t __from, __off64_t __to,
+			    unsigned int __flags);
+
+
+/* Splice two files together.  */
+extern int splice (int __fdin, int __fdout, size_t __len, unsigned int __flags)
+    __THROW;
+
+#endif
+
 __END_DECLS
diff --git a/sysdeps/unix/sysv/linux/i386/bits/fcntl.h b/sysdeps/unix/sysv/linux/i386/bits/fcntl.h
index 8c9159f0fd..6311f1fbad 100644
--- a/sysdeps/unix/sysv/linux/i386/bits/fcntl.h
+++ b/sysdeps/unix/sysv/linux/i386/bits/fcntl.h
@@ -180,16 +180,37 @@ struct flock64
 # define POSIX_FADV_NOREUSE	5 /* Data will be accessed once.  */
 #endif
 
-/* Linux-specific operations for posix_fadvise.  */
+
 #ifdef __USE_GNU
-# define LINUX_FADV_ASYNC_WRITE	32 /* Start writeout on range.  */
-# define LINUX_FADV_WRITE_WAIT	33 /* Wait upon writeout to range.  */
+# define SYNC_FILE_RANGE_WAIT_BEFORE	1 /* Wait upon writeout of all pages
+					     in the range before performing the
+					     write.  */
+# define SYNC_FILE_RANGE_WRITE		2 /* Initiate writeout of all those
+					     dirty pages in the range which are
+					     not presently under writeback.  */
+# define SYNC_FILE_RANGE_WAIT_AFTER	4 /* Wait upon writeout of all pages in
+					     the range after performing the
+					     write.  */
 #endif
 
 __BEGIN_DECLS
 
+#ifdef __USE_GNU
+
 /* Provide kernel hint to read ahead.  */
 extern ssize_t readahead (int __fd, __off64_t __offset, size_t __count)
     __THROW;
 
+
+/* Selective file content synch'ing.  */
+extern int sync_file_range (int __fd, __off64_t __from, __off64_t __to,
+			    unsigned int __flags);
+
+
+/* Splice two files together.  */
+extern int splice (int __fdin, int __fdout, size_t __len, unsigned int __flags)
+    __THROW;
+
+#endif
+
 __END_DECLS
diff --git a/sysdeps/unix/sysv/linux/i386/sync_file_range.S b/sysdeps/unix/sysv/linux/i386/sync_file_range.S
new file mode 100644
index 0000000000..f39e8a00d7
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/i386/sync_file_range.S
@@ -0,0 +1,72 @@
+/* Selective file content synch'ing.
+   Copyright (C) 2006 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 <sysdep.h>
+#define _ERRNO_H        1
+#include <bits/errno.h>
+
+
+	.text
+ENTRY (sync_file_range)
+#ifdef __NR_sync_file_range
+	pushl	%ebx
+	cfi_adjust_cfa_offset (4)
+	pushl	%esi
+	cfi_adjust_cfa_offset (4)
+	pushl	%edi
+	cfi_adjust_cfa_offset (4)
+	pushl	%ebp
+	cfi_adjust_cfa_offset (4)
+
+	movl	20(%esp), %ebx
+	cfi_rel_offset (ebx, 12)
+	movl	24(%esp), %ecx
+	movl	28(%esp), %edx
+	movl	32(%esp), %esi
+	cfi_rel_offset (esi, 8)
+	movl	36(%esp), %edi
+	cfi_rel_offset (edi, 4)
+	movl	40(%esp), %ebp
+	cfi_rel_offset (ebp, 0)
+
+	movl	$SYS_ify(sync_file_range), %eax
+	ENTER_KERNEL
+
+	popl	%ebp
+	cfi_adjust_cfa_offset (-4)
+	cfi_restore (ebp)
+	popl	%edi
+	cfi_adjust_cfa_offset (-4)
+	cfi_restore (edi)
+	popl	%esi
+	cfi_adjust_cfa_offset (-4)
+	cfi_restore (esi)
+	popl	%ebx
+	cfi_adjust_cfa_offset (-4)
+	cfi_restore (ebx)
+
+	cmpl	$-4095, %eax
+	jae	SYSCALL_ERROR_LABEL
+L(pseudo_end):
+	ret
+#else
+	movl	$-ENOSYS, %eax
+	jmp	SYSCALL_ERROR_LABEL
+#endif
+PSEUDO_END (sync_file_range)
diff --git a/sysdeps/unix/sysv/linux/ia64/bits/fcntl.h b/sysdeps/unix/sysv/linux/ia64/bits/fcntl.h
index 94e534d97f..630cb10ffb 100644
--- a/sysdeps/unix/sysv/linux/ia64/bits/fcntl.h
+++ b/sysdeps/unix/sysv/linux/ia64/bits/fcntl.h
@@ -174,16 +174,37 @@ struct flock64
 # define POSIX_FADV_NOREUSE	5 /* Data will be accessed once.  */
 #endif
 
-/* Linux-specific operations for posix_fadvise.  */
+
 #ifdef __USE_GNU
-# define LINUX_FADV_ASYNC_WRITE	32 /* Start writeout on range.  */
-# define LINUX_FADV_WRITE_WAIT	33 /* Wait upon writeout to range.  */
+# define SYNC_FILE_RANGE_WAIT_BEFORE	1 /* Wait upon writeout of all pages
+					     in the range before performing the
+					     write.  */
+# define SYNC_FILE_RANGE_WRITE		2 /* Initiate writeout of all those
+					     dirty pages in the range which are
+					     not presently under writeback.  */
+# define SYNC_FILE_RANGE_WAIT_AFTER	4 /* Wait upon writeout of all pages in
+					     the range after performing the
+					     write.  */
 #endif
 
 __BEGIN_DECLS
 
+#ifdef __USE_GNU
+
 /* Provide kernel hint to read ahead.  */
 extern ssize_t readahead (int __fd, __off64_t __offset, size_t __count)
     __THROW;
 
+
+/* Selective file content synch'ing.  */
+extern int sync_file_range (int __fd, __off64_t __from, __off64_t __to,
+			    unsigned int __flags);
+
+
+/* Splice two files together.  */
+extern int splice (int __fdin, int __fdout, size_t __len, unsigned int __flags)
+    __THROW;
+
+#endif
+
 __END_DECLS
diff --git a/sysdeps/unix/sysv/linux/powerpc/bits/fcntl.h b/sysdeps/unix/sysv/linux/powerpc/bits/fcntl.h
index 4e8b61a394..7f53b1dad5 100644
--- a/sysdeps/unix/sysv/linux/powerpc/bits/fcntl.h
+++ b/sysdeps/unix/sysv/linux/powerpc/bits/fcntl.h
@@ -180,16 +180,37 @@ struct flock64
 # define POSIX_FADV_NOREUSE	5 /* Data will be accessed once.  */
 #endif
 
-/* Linux-specific operations for posix_fadvise.  */
+
 #ifdef __USE_GNU
-# define LINUX_FADV_ASYNC_WRITE	32 /* Start writeout on range.  */
-# define LINUX_FADV_WRITE_WAIT	33 /* Wait upon writeout to range.  */
+# define SYNC_FILE_RANGE_WAIT_BEFORE	1 /* Wait upon writeout of all pages
+					     in the range before performing the
+					     write.  */
+# define SYNC_FILE_RANGE_WRITE		2 /* Initiate writeout of all those
+					     dirty pages in the range which are
+					     not presently under writeback.  */
+# define SYNC_FILE_RANGE_WAIT_AFTER	4 /* Wait upon writeout of all pages in
+					     the range after performing the
+					     write.  */
 #endif
 
 __BEGIN_DECLS
 
+#ifdef __USE_GNU
+
 /* Provide kernel hint to read ahead.  */
 extern ssize_t readahead (int __fd, __off64_t __offset, size_t __count)
     __THROW;
 
+
+/* Selective file content synch'ing.  */
+extern int sync_file_range (int __fd, __off64_t __from, __off64_t __to,
+			    unsigned int __flags);
+
+
+/* Splice two files together.  */
+extern int splice (int __fdin, int __fdout, size_t __len, unsigned int __flags)
+    __THROW;
+
+#endif
+
 __END_DECLS
diff --git a/sysdeps/unix/sysv/linux/s390/bits/fcntl.h b/sysdeps/unix/sysv/linux/s390/bits/fcntl.h
index a24c36846e..e951b631cd 100644
--- a/sysdeps/unix/sysv/linux/s390/bits/fcntl.h
+++ b/sysdeps/unix/sysv/linux/s390/bits/fcntl.h
@@ -199,16 +199,37 @@ struct flock64
 # endif
 #endif
 
-/* Linux-specific operations for posix_fadvise.  */
+
 #ifdef __USE_GNU
-# define LINUX_FADV_ASYNC_WRITE	32 /* Start writeout on range.  */
-# define LINUX_FADV_WRITE_WAIT	33 /* Wait upon writeout to range.  */
+# define SYNC_FILE_RANGE_WAIT_BEFORE	1 /* Wait upon writeout of all pages
+					     in the range before performing the
+					     write.  */
+# define SYNC_FILE_RANGE_WRITE		2 /* Initiate writeout of all those
+					     dirty pages in the range which are
+					     not presently under writeback.  */
+# define SYNC_FILE_RANGE_WAIT_AFTER	4 /* Wait upon writeout of all pages in
+					     the range after performing the
+					     write.  */
 #endif
 
 __BEGIN_DECLS
 
+#ifdef __USE_GNU
+
 /* Provide kernel hint to read ahead.  */
 extern ssize_t readahead (int __fd, __off64_t __offset, size_t __count)
     __THROW;
 
+
+/* Selective file content synch'ing.  */
+extern int sync_file_range (int __fd, __off64_t __from, __off64_t __to,
+			    unsigned int __flags);
+
+
+/* Splice two files together.  */
+extern int splice (int __fdin, int __fdout, size_t __len, unsigned int __flags)
+    __THROW;
+
+#endif
+
 __END_DECLS
diff --git a/sysdeps/unix/sysv/linux/sh/bits/fcntl.h b/sysdeps/unix/sysv/linux/sh/bits/fcntl.h
index 8c9159f0fd..6311f1fbad 100644
--- a/sysdeps/unix/sysv/linux/sh/bits/fcntl.h
+++ b/sysdeps/unix/sysv/linux/sh/bits/fcntl.h
@@ -180,16 +180,37 @@ struct flock64
 # define POSIX_FADV_NOREUSE	5 /* Data will be accessed once.  */
 #endif
 
-/* Linux-specific operations for posix_fadvise.  */
+
 #ifdef __USE_GNU
-# define LINUX_FADV_ASYNC_WRITE	32 /* Start writeout on range.  */
-# define LINUX_FADV_WRITE_WAIT	33 /* Wait upon writeout to range.  */
+# define SYNC_FILE_RANGE_WAIT_BEFORE	1 /* Wait upon writeout of all pages
+					     in the range before performing the
+					     write.  */
+# define SYNC_FILE_RANGE_WRITE		2 /* Initiate writeout of all those
+					     dirty pages in the range which are
+					     not presently under writeback.  */
+# define SYNC_FILE_RANGE_WAIT_AFTER	4 /* Wait upon writeout of all pages in
+					     the range after performing the
+					     write.  */
 #endif
 
 __BEGIN_DECLS
 
+#ifdef __USE_GNU
+
 /* Provide kernel hint to read ahead.  */
 extern ssize_t readahead (int __fd, __off64_t __offset, size_t __count)
     __THROW;
 
+
+/* Selective file content synch'ing.  */
+extern int sync_file_range (int __fd, __off64_t __from, __off64_t __to,
+			    unsigned int __flags);
+
+
+/* Splice two files together.  */
+extern int splice (int __fdin, int __fdout, size_t __len, unsigned int __flags)
+    __THROW;
+
+#endif
+
 __END_DECLS
diff --git a/sysdeps/unix/sysv/linux/sparc/bits/fcntl.h b/sysdeps/unix/sysv/linux/sparc/bits/fcntl.h
index b7f46e403c..4a158e2619 100644
--- a/sysdeps/unix/sysv/linux/sparc/bits/fcntl.h
+++ b/sysdeps/unix/sysv/linux/sparc/bits/fcntl.h
@@ -199,16 +199,37 @@ struct flock64
 # define POSIX_FADV_NOREUSE	5 /* Data will be accessed once.  */
 #endif
 
-/* Linux-specific operations for posix_fadvise.  */
+
 #ifdef __USE_GNU
-# define LINUX_FADV_ASYNC_WRITE	32 /* Start writeout on range.  */
-# define LINUX_FADV_WRITE_WAIT	33 /* Wait upon writeout to range.  */
+# define SYNC_FILE_RANGE_WAIT_BEFORE	1 /* Wait upon writeout of all pages
+					     in the range before performing the
+					     write.  */
+# define SYNC_FILE_RANGE_WRITE		2 /* Initiate writeout of all those
+					     dirty pages in the range which are
+					     not presently under writeback.  */
+# define SYNC_FILE_RANGE_WAIT_AFTER	4 /* Wait upon writeout of all pages in
+					     the range after performing the
+					     write.  */
 #endif
 
 __BEGIN_DECLS
 
+#ifdef __USE_GNU
+
 /* Provide kernel hint to read ahead.  */
 extern ssize_t readahead (int __fd, __off64_t __offset, size_t __count)
     __THROW;
 
+
+/* Selective file content synch'ing.  */
+extern int sync_file_range (int __fd, __off64_t __from, __off64_t __to,
+			    unsigned int __flags);
+
+
+/* Splice two files together.  */
+extern int splice (int __fdin, int __fdout, size_t __len, unsigned int __flags)
+    __THROW;
+
+#endif
+
 __END_DECLS
diff --git a/sysdeps/unix/sysv/linux/wordsize-64/syscalls.list b/sysdeps/unix/sysv/linux/wordsize-64/syscalls.list
index 58904fc4d4..d377db9687 100644
--- a/sysdeps/unix/sysv/linux/wordsize-64/syscalls.list
+++ b/sysdeps/unix/sysv/linux/wordsize-64/syscalls.list
@@ -14,3 +14,4 @@ getrlimit	-	getrlimit	i:ip	__getrlimit	getrlimit getrlimit64
 setrlimit	-	setrlimit	i:ip	__setrlimit	setrlimit setrlimit64
 readahead	-	readahead	i:iii	__readahead	readahead
 sendfile	-	sendfile	i:iipi	sendfile	sendfile64
+sync_file_range	-	sync_file_range	i:iiii	sync_file_range
diff --git a/sysdeps/unix/sysv/linux/x86_64/bits/fcntl.h b/sysdeps/unix/sysv/linux/x86_64/bits/fcntl.h
index 712007c36c..f7e5d16e8b 100644
--- a/sysdeps/unix/sysv/linux/x86_64/bits/fcntl.h
+++ b/sysdeps/unix/sysv/linux/x86_64/bits/fcntl.h
@@ -194,16 +194,37 @@ struct flock64
 # define POSIX_FADV_NOREUSE	5 /* Data will be accessed once.  */
 #endif
 
-/* Linux-specific operations for posix_fadvise.  */
+
 #ifdef __USE_GNU
-# define LINUX_FADV_ASYNC_WRITE	32 /* Start writeout on range.  */
-# define LINUX_FADV_WRITE_WAIT	33 /* Wait upon writeout to range.  */
+# define SYNC_FILE_RANGE_WAIT_BEFORE	1 /* Wait upon writeout of all pages
+					     in the range before performing the
+					     write.  */
+# define SYNC_FILE_RANGE_WRITE		2 /* Initiate writeout of all those
+					     dirty pages in the range which are
+					     not presently under writeback.  */
+# define SYNC_FILE_RANGE_WAIT_AFTER	4 /* Wait upon writeout of all pages in
+					     the range after performing the
+					     write.  */
 #endif
 
 __BEGIN_DECLS
 
+#ifdef __USE_GNU
+
 /* Provide kernel hint to read ahead.  */
 extern ssize_t readahead (int __fd, __off64_t __offset, size_t __count)
     __THROW;
 
+
+/* Selective file content synch'ing.  */
+extern int sync_file_range (int __fd, __off64_t __from, __off64_t __to,
+			    unsigned int __flags);
+
+
+/* Splice two files together.  */
+extern int splice (int __fdin, int __fdout, size_t __len, unsigned int __flags)
+    __THROW;
+
+#endif
+
 __END_DECLS