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| author | Sebastian Andrzej Siewior <bigeasy@linutronix.de> | 2013-03-11 20:37:27 (GMT) |
|---|---|---|
| committer | Scott Wood <scottwood@freescale.com> | 2014-04-10 00:19:54 (GMT) |
| commit | dad3e3263a3b3978630c1703e6dbd0c41ad07bc1 (patch) | |
| tree | 46d811072d7517eb295e98826be91579a4513a96 /arch/arm | |
| parent | 88552ea8ca29ad1f2c4a961f663f8c362df97fa7 (diff) | |
| download | linux-fsl-qoriq-dad3e3263a3b3978630c1703e6dbd0c41ad07bc1.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() */ |