Commit f036c818 authored by Alexander Gordeev's avatar Alexander Gordeev Committed by Andrew Morton
Browse files

mm: mmu_gather: do not expose delayed_rmap flag 

Flag delayed_rmap of 'struct mmu_gather' is rather a private member, but
it is still accessed directly.  Instead, let the TLB gather code access
the flag.

Link: https://lkml.kernel.org/r/Y3SWCu6NRaMQ5dbD@li-4a3a4a4c-28e5-11b2-a85c-a8d192c6f089.ibm.com


Signed-off-by: default avatarAlexander Gordeev <agordeev@linux.ibm.com>
Acked-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
parent 5df397de

mm/memory.c

+1 −2
Original line number Diff line number Diff line
@@ -1465,7 +1465,6 @@ static unsigned long zap_pte_range(struct mmu_gather *tlb, 
	/* Do the actual TLB flush before dropping ptl */

	if (force_flush) {

		tlb_flush_mmu_tlbonly(tlb);

		if (tlb->delayed_rmap)

		tlb_flush_rmaps(tlb, vma);

	}

	pte_unmap_unlock(start_pte, ptl);

mm/mmu_gather.c

+3 −0
Original line number Diff line number Diff line
@@ -61,6 +61,9 @@ void tlb_flush_rmaps(struct mmu_gather *tlb, struct vm_area_struct *vma) 
{

	struct mmu_gather_batch *batch;



	if (!tlb->delayed_rmap)

		return;



	batch = tlb->active;

	for (int i = 0; i < batch->nr; i++) {

		struct encoded_page *enc = batch->encoded_pages[i];