Commit f6fcba70 authored Feb 20, 2009 by Tejun Heo Committed by Linus Torvalds Feb 20, 2009

vmalloc: call flush_cache_vunmap() from unmap_kernel_range()



Impact: proper vcache flush on unmap_kernel_range()

flush_cache_vunmap() should be called before pages are unmapped.  Add
a call to it in unmap_kernel_range().

Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Nick Piggin <npiggin@suse.de>
Acked-by: David S. Miller <davem@davemloft.net>
Cc: <stable@kernel.org>		[2.6.28.x]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

parent 3fd076dd

mm/vmalloc.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -1012,6 +1012,8 @@ void __init vmalloc_init(void)
		void unmap_kernel_range(unsigned long addr, unsigned long size)
		{
		unsigned long end = addr + size;

		flush_cache_vunmap(addr, end);
		vunmap_page_range(addr, end);
		flush_tlb_kernel_range(addr, end);
		}

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