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| author | Sebastian Andrzej Siewior <bigeasy@linutronix.de> | 2013-03-11 20:37:27 (GMT) |
|---|---|---|
| committer | Scott Wood <scottwood@freescale.com> | 2015-02-13 22:21:00 (GMT) |
| commit | f69dadac600e4fc454213ff0002a250ad43fe635 (patch) | |
| tree | 0e9b5168e1270242b19820457d154eb3b9eb3974 /arch/arm | |
| parent | 8e3769043a99b8a4bd4706036207e0305b42ec2f (diff) | |
| download | linux-fsl-qoriq-f69dadac600e4fc454213ff0002a250ad43fe635.tar.xz | |
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>
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/mm/highmem.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm/mm/highmem.c b/arch/arm/mm/highmem.c index 21b9e1b..3688c8b 100644 --- a/arch/arm/mm/highmem.c +++ b/arch/arm/mm/highmem.c @@ -95,10 +95,10 @@ void __kunmap_atomic(void *kvaddr) __cpuc_flush_dcache_area((void *)vaddr, PAGE_SIZE); #ifdef CONFIG_DEBUG_HIGHMEM BUG_ON(vaddr != __fix_to_virt(FIX_KMAP_BEGIN + idx)); - set_top_pte(vaddr, __pte(0)); #else (void) idx; /* to kill a warning */ #endif + set_top_pte(vaddr, __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() */ |