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mm: highmem: export kmap_to_page for modules

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Some virtio device drivers (9p) need to translate high virtual addresses
to physical addresses, which are inserted into the virtqueue for
processing by userspace.

This patch exports the kmap_to_page symbol, so that the affected drivers
can be compiled as modules.

Cc: stable@kernel.org
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This commit is contained in:
Will Deacon 2012-10-19 14:03:31 +01:00 committed by Rusty Russell
parent dd8e8c4a2c
commit f0263d2d22
1 changed files with 1 additions and 0 deletions
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mm/highmem.c
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@ -105,6 +105,7 @@ struct page *kmap_to_page(void *vaddr)
return virt_to_page(addr);
}
EXPORT_SYMBOL(kmap_to_page);
static void flush_all_zero_pkmaps(void)
{