The patch titled
Subject: mm, highmem: get virtual address of the page using PKMAP_ADDR()
has been added to the -mm tree. Its filename is
mm-highmem-get-virtual-address-of-the-page-using-pkmap_addr.patch
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------------------------------------------------------
From: Joonsoo Kim <js1304@xxxxxxxxx>
Subject: mm, highmem: get virtual address of the page using PKMAP_ADDR()
In flush_all_zero_pkmaps(), we have an index of the pkmap associated with
the page. Using this index, we can simply get virtual address of the
page. So change it.
Signed-off-by: Joonsoo Kim <js1304@xxxxxxxxx>
Cc: Mel Gorman <mel@xxxxxxxxx>
Reviewed-by: Minchan Kim <minchan@xxxxxxxxxx>
Cc: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/highmem.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff -puN mm/highmem.c~mm-highmem-get-virtual-address-of-the-page-using-pkmap_addr mm/highmem.c
--- a/mm/highmem.c~mm-highmem-get-virtual-address-of-the-page-using-pkmap_addr
+++ a/mm/highmem.c
@@ -138,8 +138,7 @@ static int flush_all_zero_pkmaps(void)
* So no dangers, even with speculative execution.
*/
page = pte_page(pkmap_page_table[i]);
- pte_clear(&init_mm, (unsigned long)page_address(page),
- &pkmap_page_table[i]);
+ pte_clear(&init_mm, PKMAP_ADDR(i), &pkmap_page_table[i]);
set_page_address(page, NULL);
index = i;
_
Patches currently in -mm which might be from js1304@xxxxxxxxx are
linux-next.patch
mm-highmem-use-pkmap_nr-to-calculate-an-index-of-pkmap.patch
mm-highmem-remove-useless-pool_lock.patch
mm-highmem-remove-page_address_pool-list.patch
mm-highmem-makes-flush_all_zero_pkmaps-return-index-of-last-flushed-entry.patch
mm-highmem-get-virtual-address-of-the-page-using-pkmap_addr.patch
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