[PATCH v3 2/9] x86/mm/tlb: Remove reason as argument for flush_tlb_func_local()

[Nadav Amit]

To use flush_tlb_func_local() as an argument to
__smp_call_function_many() we need it to have a single (void *)
parameter. Eliminate the second parameter and deduce the reason for the
flush.

Cc: Peter Zijlstra <pet...@infradead.org>
Cc: Dave Hansen <dave.han...@linux.intel.com>
Cc: Rik van Riel <r...@surriel.com>
Cc: Thomas Gleixner <t...@linutronix.de>
Cc: Andy Lutomirski <l...@kernel.org>
Cc: Josh Poimboeuf <jpoim...@redhat.com>
Signed-off-by: Nadav Amit <na...@vmware.com>
---
 arch/x86/mm/tlb.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/arch/x86/mm/tlb.c b/arch/x86/mm/tlb.c
index 4de9704c4aaf..233f3d8308db 100644
--- a/arch/x86/mm/tlb.c
+++ b/arch/x86/mm/tlb.c
@@ -635,9 +635,12 @@ static void flush_tlb_func_common(const struct 
flush_tlb_info *f,
        this_cpu_write(cpu_tlbstate.ctxs[loaded_mm_asid].tlb_gen, mm_tlb_gen);
 }
 
-static void flush_tlb_func_local(const void *info, enum tlb_flush_reason 
reason)
+static void flush_tlb_func_local(void *info)
 {
        const struct flush_tlb_info *f = info;
+       enum tlb_flush_reason reason;
+
+       reason = (f->mm == NULL) ? TLB_LOCAL_SHOOTDOWN : TLB_LOCAL_MM_SHOOTDOWN;
 
        flush_tlb_func_common(f, true, reason);
 }
@@ -790,7 +793,7 @@ void flush_tlb_mm_range(struct mm_struct *mm, unsigned long 
start,
        if (mm == this_cpu_read(cpu_tlbstate.loaded_mm)) {
                lockdep_assert_irqs_enabled();
                local_irq_disable();
-               flush_tlb_func_local(info, TLB_LOCAL_MM_SHOOTDOWN);
+               flush_tlb_func_local(info);
                local_irq_enable();
        }
 
@@ -862,7 +865,7 @@ void arch_tlbbatch_flush(struct arch_tlbflush_unmap_batch 
*batch)
        if (cpumask_test_cpu(cpu, &batch->cpumask)) {
                lockdep_assert_irqs_enabled();
                local_irq_disable();
-               flush_tlb_func_local(&full_flush_tlb_info, TLB_LOCAL_SHOOTDOWN);
+               flush_tlb_func_local(&full_flush_tlb_info);
                local_irq_enable();
        }
 
-- 
2.20.1