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| author | Sebastian Andrzej Siewior <bigeasy@linutronix.de> | 2013-03-11 20:37:27 (GMT) |
|---|---|---|
| committer | Scott Wood <scottwood@freescale.com> | 2014-05-14 18:38:44 (GMT) |
| commit | c7b07b44c2268f930bd11d537e3c9a4073a252ff (patch) | |
| tree | 2ef5452ef46e31f47c2690356f77890177dd48ea | |
| parent | b179c535a27f0bcefcbfc9f54769703999b2c880 (diff) | |
| download | linux-fsl-qoriq-c7b07b44c2268f930bd11d537e3c9a4073a252ff.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>
| -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() */ |