Here is the 2.6.22-rc1 version of David's patch: add fallocate() on ia64

From: David Chinner <redacted>
Subject: [PATCH] ia64 fallocate syscall
Cc: "Amit K. Arora" <redacted>, 
        akpm@linux-foundation.org, linux-ext4@vger.kernel.org,
        suparna@in.ibm.com, cmm@us.ibm.com

ia64 fallocate syscall support.

Signed-Off-By: Dave Chinner <redacted>

---
 arch/ia64/kernel/entry.S  |    1 +
 include/asm-ia64/unistd.h |    3 ++-
 2 files changed, 3 insertions(+), 1 deletion(-)

Index: linux-2.6.22-rc1/arch/ia64/kernel/entry.S
===================================================================

--- linux-2.6.22-rc1.orig/arch/ia64/kernel/entry.S	2007-05-12 18:45:56.000000000 -0700
+++ linux-2.6.22-rc1/arch/ia64/kernel/entry.S	2007-05-15 15:36:48.000000000 -0700

@@ -1585,5 +1585,6 @@
 	data8 sys_getcpu
 	data8 sys_epoll_pwait			// 1305
 	data8 sys_utimensat
+	data8 sys_fallocate

 	.org sys_call_table + 8*NR_syscalls	// guard against failures to increase NR_syscalls

Index: linux-2.6.22-rc1/include/asm-ia64/unistd.h
===================================================================

--- linux-2.6.22-rc1.orig/include/asm-ia64/unistd.h	2007-05-12 18:45:56.000000000 -0700
+++ linux-2.6.22-rc1/include/asm-ia64/unistd.h	2007-05-15 15:37:51.000000000 -0700

@@ -296,6 +296,7 @@
 #define __NR_getcpu			1304
 #define __NR_epoll_pwait		1305
 #define __NR_utimensat			1306
+#define __NR_fallocate			1307

 #ifdef __KERNEL__