[PATCH v2 5/5] mm, highmem: get virtual address of the page using PKMAP_ADDR()
From: Joonsoo Kim <hidden>
Date: 2012-10-31 16:59:25
Also in:
lkml
Subsystem:
memory management, memory management - core, the rest · Maintainers:
Andrew Morton, David Hildenbrand, Linus Torvalds
In flush_all_zero_pkmaps(), we have an index of the pkmap associated the page. Using this index, we can simply get virtual address of the page. So change it. Cc: Mel Gorman <redacted> Cc: Peter Zijlstra <redacted> Signed-off-by: Joonsoo Kim <redacted> Reviewed-by: Minchan Kim <minchan@kernel.org>
diff --git a/mm/highmem.c b/mm/highmem.c
index b365f7b..675ec97 100644
--- a/mm/highmem.c
+++ b/mm/highmem.c@@ -137,8 +137,7 @@ static unsigned 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); if (index == PKMAP_INVALID_INDEX)
--
1.7.9.5
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