forked from rrcarlosr/Jetpack
34 lines
1.1 KiB
Diff
34 lines
1.1 KiB
Diff
From 3a713cf4fef7e94f61cdf3c86e98d2f44aff05c2 Mon Sep 17 00:00:00 2001
|
|
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
|
Date: Mon, 11 Mar 2013 21:37:27 +0100
|
|
Subject: [PATCH 266/352] arm/highmem: Flush tlb on unmap
|
|
|
|
The tlb should be flushed on unmap and thus make the mapping entry
|
|
invalid. This is only done in the non-debug case which does not look
|
|
right.
|
|
|
|
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
|
---
|
|
arch/arm/mm/highmem.c | 2 +-
|
|
1 file changed, 1 insertion(+), 1 deletion(-)
|
|
|
|
diff --git a/arch/arm/mm/highmem.c b/arch/arm/mm/highmem.c
|
|
index d02f818..eb4b225d 100644
|
|
--- a/arch/arm/mm/highmem.c
|
|
+++ b/arch/arm/mm/highmem.c
|
|
@@ -112,10 +112,10 @@ void __kunmap_atomic(void *kvaddr)
|
|
__cpuc_flush_dcache_area((void *)vaddr, PAGE_SIZE);
|
|
#ifdef CONFIG_DEBUG_HIGHMEM
|
|
BUG_ON(vaddr != __fix_to_virt(idx));
|
|
- set_fixmap_pte(idx, __pte(0));
|
|
#else
|
|
(void) idx; /* to kill a warning */
|
|
#endif
|
|
+ set_fixmap_pte(idx, __pte(0));
|
|
kmap_atomic_idx_pop();
|
|
} else if (vaddr >= PKMAP_ADDR(0) && vaddr < PKMAP_ADDR(LAST_PKMAP)) {
|
|
/* this address was obtained through kmap_high_get() */
|
|
--
|
|
2.7.4
|
|
|