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x86/mm/cpa: Use flush_tlb_all() 

Instead of open-coding it..

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Dave Hansen <dave.hansen@intel.com>
Cc: Bin Yang <bin.yang@intel.com>
Cc: Mark Gross <mark.gross@intel.com>
Link: https://lkml.kernel.org/r/20180919085947.831102058@infradead.org
This commit is contained in:
Peter Zijlstra 2018-09-19 10:50:17 +02:00 committed by Thomas Gleixner
parent 585948f4f6
commit c6185b1f21
1 changed files with 1 additions and 11 deletions
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12
arch/x86/mm/pageattr.c
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@ -285,16 +285,6 @@ static void cpa_flush_all(unsigned long cache)
on_each_cpu(__cpa_flush_all, (void *) cache, 1);
}
static void __cpa_flush_range(void *arg)
{
/*
* We could optimize that further and do individual per page
* tlb invalidates for a low number of pages. Caveat: we must
* flush the high aliases on 64bit as well.
*/
__flush_tlb_all();
}
static void cpa_flush_range(unsigned long start, int numpages, int cache)
{
unsigned int i, level;
@ -303,7 +293,7 @@ static void cpa_flush_range(unsigned long start, int numpages, int cache)
BUG_ON(irqs_disabled() && !early_boot_irqs_disabled);
WARN_ON(PAGE_ALIGN(start) != start);
on_each_cpu(__cpa_flush_range, NULL, 1);
flush_tlb_all();
if (!cache)
return;