From: Stephen Hemminger <shemminger@osdl.org>
To: Simon Derr <Simon.Derr@bull.net>
Cc: linux-kernel@vger.kernel.org
Subject: (3/4) [PATCH] cpuset - build without CPUSET configured
Date: Tue, 21 Oct 2003 16:20:32 -0700 [thread overview]
Message-ID: <20031021162032.723c247b.shemminger@osdl.org> (raw)
In-Reply-To: <Pine.A41.4.53.0310131503500.173334@isabelle.frec.bull.fr>
The existing patch would not build a kernel unless CPUSET was enabled.
The following is a simple way to make those system calls conditional.
diff -Nru a/include/linux/cpuset.h b/include/linux/cpuset.h
--- a/include/linux/cpuset.h Tue Oct 21 16:09:32 2003
+++ b/include/linux/cpuset.h Tue Oct 21 16:09:32 2003
@@ -24,6 +24,13 @@
int cpuset_realtologic_cpuid(struct cpuset * cs, int cpuid);
+extern asmlinkage long sys_cpuset_create(cpuset_t *cpusetp, int flags);
+extern asmlinkage long sys_cpuset_destroy(cpuset_t cpuset);
+extern asmlinkage long sys_cpuset_attach(cpuset_t cpuset, pid_t pid);
+extern asmlinkage long sys_cpuset_alloc(cpuset_t cpuset, int len,
+ unsigned long *user_mask_ptr);
+extern asmlinkage long sys_cpuset_getfreecpus(int flags, int len,
+ unsigned long *user_mask_ptr);
#endif /* __KERNEL__ */
#endif /* _LINUX_CPUSET_H */
diff -Nru a/kernel/sys.c b/kernel/sys.c
--- a/kernel/sys.c Tue Oct 21 16:09:32 2003
+++ b/kernel/sys.c Tue Oct 21 16:09:32 2003
@@ -17,6 +17,7 @@
#include <linux/init.h>
#include <linux/highuid.h>
#include <linux/fs.h>
+#include <linux/cpuset.h>
#include <linux/workqueue.h>
#include <linux/device.h>
#include <linux/times.h>
@@ -253,6 +254,12 @@
cond_syscall(sys_epoll_wait)
cond_syscall(sys_pciconfig_read)
cond_syscall(sys_pciconfig_write)
+cond_syscall(sys_cpuset_create);
+cond_syscall(sys_cpuset_destroy);
+cond_syscall(sys_cpuset_alloc);
+cond_syscall(sys_cpuset_attach);
+cond_syscall(sys_cpuset_getfreecpus);
+
static int set_one_prio(struct task_struct *p, int niceval, int error)
{
next prev parent reply other threads:[~2003-10-21 23:22 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-10-13 13:07 [RFC] cpuset proposal Simon Derr
2003-10-21 23:20 ` (1/4) [PATCH] cpuset -- 2.6.0-test8 Stephen Hemminger
2003-10-22 0:08 ` William Lee Irwin III
2003-10-22 14:34 ` Simon Derr
2003-10-22 14:57 ` William Lee Irwin III
2003-10-21 23:20 ` (2/4) [PATCH] cpuset - Kconfig Stephen Hemminger
2003-10-21 23:20 ` Stephen Hemminger [this message]
2003-10-21 23:20 ` (4/4) [PATCH] cpuset -- seqfile change Stephen Hemminger
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