--- openafs.orig/acinclude.m4	15 Oct 2007 12:42:20 -0000	1.114.2.83
+++ openafs/acinclude.m4	6 Nov 2007 04:25:41 -0000
@@ -614,6 +614,7 @@
 	  	 LINUX_AOP_WRITEBACK_CONTROL
 		 LINUX_FS_STRUCT_FOP_HAS_FLOCK
 		 LINUX_FS_STRUCT_FOP_HAS_SENDFILE
+		 LINUX_FS_STRUCT_FOP_HAS_SPLICE
 		 LINUX_KERNEL_LINUX_SYSCALL_H
 		 LINUX_KERNEL_LINUX_SEQ_FILE_H
 		 LINUX_KERNEL_POSIX_LOCK_FILE_WAIT_ARG
@@ -861,6 +862,9 @@
 		 if test "x$ac_cv_linux_fs_struct_fop_has_sendfile" = "xyes" ; then
 		  AC_DEFINE(STRUCT_FILE_OPERATIONS_HAS_SENDFILE, 1, [define if your struct file_operations has sendfile])
 		 fi
+		 if test "x$ac_cv_linux_fs_struct_fop_has_splice" = "xyes" ; then
+		  AC_DEFINE(STRUCT_FILE_OPERATIONS_HAS_SPLICE, 1, [define if your struct file_operations has splice_write and splice_read])
+		 fi
 		 if test "x$ac_cv_linux_register_sysctl_table_noflag" = "xyes" ; then
 		  AC_DEFINE(REGISTER_SYSCTL_TABLE_NOFLAG, 1, [define if register_sysctl_table has no insert_at head flag])
 		 fi
--- openafs.orig/src/afs/LINUX/osi_vnodeops.c	1 Nov 2007 03:33:14 -0000	1.81.2.58
+++ openafs/src/afs/LINUX/osi_vnodeops.c	6 Nov 2007 04:25:42 -0000
@@ -643,6 +643,10 @@
 #if defined(AFS_LINUX26_ENV) && defined(STRUCT_FILE_OPERATIONS_HAS_SENDFILE)
   .sendfile =   generic_file_sendfile,
 #endif
+#if defined(AFS_LINUX26_ENV) && defined(STRUCT_FILE_OPERATIONS_HAS_SPLICE)
+  .splice_write = generic_file_splice_write,
+  .splice_read = generic_file_splice_read,
+#endif
   .release =	afs_linux_release,
   .fsync =	afs_linux_fsync,
   .lock =	afs_linux_lock,
--- openafs.orig/src/cf/linux-test4.m4	15 Oct 2007 12:42:29 -0000	1.20.2.34
+++ openafs/src/cf/linux-test4.m4	6 Nov 2007 04:25:42 -0000
@@ -894,3 +894,15 @@
       ac_cv_linux_fs_struct_fop_has_sendfile=no)])
   AC_MSG_RESULT($ac_cv_linux_fs_struct_fop_has_sendfile)])
 
+AC_DEFUN([LINUX_FS_STRUCT_FOP_HAS_SPLICE], [
+  AC_MSG_CHECKING([for splice_write and splice_read in struct file_operations])
+  AC_CACHE_VAL([ac_cv_linux_fs_struct_fop_has_splice], [
+    AC_TRY_KBUILD(
+[#include <linux/fs.h>],
+[struct file_operations _fop;
+_fop.splice_write(NULL, NULL, NULL, 0, 0);
+_fop.splice_read(NULL, NULL, NULL, 0, 0);],
+      ac_cv_linux_fs_struct_fop_has_splice=yes,
+      ac_cv_linux_fs_struct_fop_has_splice=no)])
+  AC_MSG_RESULT($ac_cv_linux_fs_struct_fop_has_splice)])
+