FEX-Emu/linux
1
0
Fork 0
mirror of https://github.com/FEX-Emu/linux.git synced 2025-01-19 08:11:52 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

[S390] Fix compile on !CONFIG_SMP.

Browse Source 
Commit fae8b22d3e3e3a3d317a7746493997af02a3f35c
"[S390] Add per-cpu idle time / idle count sysfs attributes" causes
a link error on !CONFIG_SMP.
Fix this by adding some #ifdef's. Real fix would be to cleanup the
code since we don't register a cpu on !CONFIG_SMP. But that would
be quite a big patch. For the time being this is good enough.

arch/s390/kernel/built-in.o: In function `do_monitor_call':
(.text+0x50d4): undefined reference to `per_cpu__s390_idle'
arch/s390/kernel/built-in.o: In function `cpu_idle':
(.text+0x518c): undefined reference to `per_cpu__s390_idle'
make: *** [.tmp_vmlinux1] Error 1

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Heiko Carstens 2007-11-05 11:10:10 +01:00 committed by Martin Schwidefsky
parent 931bb68ba6
commit 0d2be08893
1 changed files with 6 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
arch/s390/kernel/process.c
View File

@ -92,6 +92,7 @@ EXPORT_SYMBOL(unregister_idle_notifier);
void do_monitor_call(struct pt_regs *regs, long interruption_code)
{
#ifdef CONFIG_SMP
struct s390_idle_data *idle;
idle = &__get_cpu_var(s390_idle);
@ -99,7 +100,7 @@ void do_monitor_call(struct pt_regs *regs, long interruption_code)
idle->idle_time += get_clock() - idle->idle_enter;
idle->in_idle = 0;
spin_unlock(&idle->lock);
#endif
/* disable monitor call class 0 */
__ctl_clear_bit(8, 15);
@ -114,7 +115,9 @@ extern void s390_handle_mcck(void);
static void default_idle(void)
{
int cpu, rc;
#ifdef CONFIG_SMP
struct s390_idle_data *idle;
#endif
/* CPU is going idle. */
cpu = smp_processor_id();
@ -151,13 +154,14 @@ static void default_idle(void)
s390_handle_mcck();
return;
}
#ifdef CONFIG_SMP
idle = &__get_cpu_var(s390_idle);
spin_lock(&idle->lock);
idle->idle_count++;
idle->in_idle = 1;
idle->idle_enter = get_clock();
spin_unlock(&idle->lock);
#endif
trace_hardirqs_on();
/* Wait for external, I/O or machine check interrupt. */
__load_psw_mask(psw_kernel_bits | PSW_MASK_WAIT |