source: server/common/patches/openafs-splice.patch @ 575

acinclude.m4

@@ -614 +614 @@
                  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 +862 @@
                  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

src/afs/LINUX/osi_vnodeops.c

@@ -643 +643 @@
 #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,

src/cf/linux-test4.m4

@@ -894 +894 @@
       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)])
+