Hello,
the attached patch fixes a problem that prevented ioprio support from
being built on my system (an ubuntu edgy). The problem was that
_syscall2 only works in the kernel tree, but is not part of the linux
headers in /usr/include. So I had a look at how it was done in the
schedutils package instead.
Cheers,
Gabriel de Perthuis
Index: configure.in
===================================================================
RCS file: /cvs/gnome/tracker/configure.in,v
retrieving revision 1.28
diff -u -7 -r1.28 configure.in
--- configure.in 19 Oct 2006 01:30:17 -0000 1.28
+++ configure.in 20 Oct 2006 20:20:23 -0000
@@ -435,21 +435,22 @@
####################################################################
AC_MSG_CHECKING([[checking ioprio support]])
ioprio_support=no
AC_RUN_IFELSE([ AC_LANG_PROGRAM([[
#include <stdlib.h>
#include <errno.h>
-#include <linux/unistd.h>
- ]], [[
-_syscall2(int, ioprio_get, int, which, int, who);
-int main()
+#include <sys/syscall.h>
+#include <unistd.h>
+inline int ioprio_get (int which, int who)
{
- exit(ioprio_get(1,0));
+ return syscall (__NR_ioprio_get, which, who);
}
+ ]], [[
+exit(ioprio_get(1,0));
]]) ],
[ AC_DEFINE(IOPRIO_SUPPORT,[],[Define ioprio support]) ioprio_support=yes ])
AC_MSG_RESULT([$ioprio_support])
#####################################################
AM_CONFIG_HEADER(src/trackerd/config.h)
Index: src/trackerd/tracker-ioprio.c
===================================================================
RCS file: /cvs/gnome/tracker/src/trackerd/tracker-ioprio.c,v
retrieving revision 1.2
diff -u -7 -r1.2 tracker-ioprio.c
--- src/trackerd/tracker-ioprio.c 11 Oct 2006 23:30:55 -0000 1.2
+++ src/trackerd/tracker-ioprio.c 20 Oct 2006 20:20:23 -0000
@@ -18,14 +18,15 @@
* Boston, MA 02111-1307, USA.
*/
#include <stdio.h>
#include <errno.h>
#include <glib/gstdio.h>
#include <tracker-utils.h>
+#include <sys/syscall.h>
#ifdef HAVE_LINUX_UNISTD_H
#include <linux/unistd.h>
#endif
#include "tracker-ioprio.h"
#ifdef IOPRIO_SUPPORT
@@ -40,16 +41,23 @@
IOPRIO_WHO_PROCESS = 1,
IOPRIO_WHO_PGRP,
IOPRIO_WHO_USER,
};
#define IOPRIO_CLASS_SHIFT 13
-_syscall2(int, ioprio_get, int, which, int, who);
-_syscall3(int, ioprio_set, int, which, int, who, int, ioprio);
+static inline int ioprio_set (int which, int who, int ioprio)
+{
+ return syscall (__NR_ioprio_set, which, who, ioprio);
+}
+
+static inline int ioprio_get (int which, int who)
+{
+ return syscall (__NR_ioprio_get, which, who);
+}
void ioprio()
{
int ioprio = 7, ioprio_class = IOPRIO_CLASS_BE;
tracker_log ("Setting ioprio best effort.");
if (ioprio_set(IOPRIO_WHO_PROCESS,0,ioprio | ioprio_class << IOPRIO_CLASS_SHIFT) == -1) {
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