From 374b8f45f1d5cb17f45ba1d7c74ce8cc9e2f1407 Mon Sep 17 00:00:00 2001 From: Martin Schwidefsky Date: Thu, 17 Apr 2008 07:45:58 +0200 Subject: [PATCH] [S390] allnoconfig build error. Fix the following link error with allnoconfig: vmem.c:(.text+0x175c): undefined reference to `smp_ptlb_all' vmem.c:(.text+0x1b24): undefined reference to `smp_ptlb_all' fork.c:(.text+0x4190): undefined reference to `smp_ptlb_all' : undefined reference to `smp_ptlb_all' : undefined reference to `smp_ptlb_all' mm/built-in.o:: more undefined references to `smp_ptlb_all' follow make[1]: *** [.tmp_vmlinux1] Error 1 make: *** [sub-make] Error 2 Signed-off-by: Martin Schwidefsky Signed-off-by: Heiko Carstens --- include/asm-s390/tlbflush.h | 33 +++++++++++++++++++++------------ 1 file changed, 21 insertions(+), 12 deletions(-) diff --git a/include/asm-s390/tlbflush.h b/include/asm-s390/tlbflush.h index 35fb4f9127b..de723470c5d 100644 --- a/include/asm-s390/tlbflush.h +++ b/include/asm-s390/tlbflush.h @@ -13,6 +13,7 @@ static inline void __tlb_flush_local(void) asm volatile("ptlb" : : : "memory"); } +#ifdef CONFIG_SMP /* * Flush all tlb entries on all cpus. */ @@ -39,6 +40,25 @@ static inline void __tlb_flush_global(void) : : "d" (reg2), "d" (reg3), "d" (reg4), "m" (dummy) : "cc" ); } +static inline void __tlb_flush_full(struct mm_struct *mm) +{ + cpumask_t local_cpumask; + + preempt_disable(); + /* + * If the process only ran on the local cpu, do a local flush. + */ + local_cpumask = cpumask_of_cpu(smp_processor_id()); + if (cpus_equal(mm->cpu_vm_mask, local_cpumask)) + __tlb_flush_local(); + else + __tlb_flush_global(); + preempt_enable(); +} +#else +#define __tlb_flush_full(mm) __tlb_flush_local() +#endif + /* * Flush all tlb entries of a page table on all cpus. */ @@ -51,8 +71,6 @@ static inline void __tlb_flush_idte(unsigned long asce) static inline void __tlb_flush_mm(struct mm_struct * mm) { - cpumask_t local_cpumask; - if (unlikely(cpus_empty(mm->cpu_vm_mask))) return; /* @@ -69,16 +87,7 @@ static inline void __tlb_flush_mm(struct mm_struct * mm) mm->context.asce_bits); return; } - preempt_disable(); - /* - * If the process only ran on the local cpu, do a local flush. - */ - local_cpumask = cpumask_of_cpu(smp_processor_id()); - if (cpus_equal(mm->cpu_vm_mask, local_cpumask)) - __tlb_flush_local(); - else - __tlb_flush_global(); - preempt_enable(); + __tlb_flush_full(mm); } static inline void __tlb_flush_mm_cond(struct mm_struct * mm) -- 2.41.1