From: Will Deacon <will.deacon@arm.com>
To: linux-kernel@vger.kernel.org
Cc: Marc.Zyngier@arm.com, Will Deacon <will.deacon@arm.com>,
virtualization@lists.linux-foundation.org, ericvh@gmail.com,
levinsasha928@gmail.com, akpm@linux-foundation.org
Subject: [PATCH v2 1/3] mm: highmem: export kmap_to_page for modules
Date: Fri, 19 Oct 2012 14:03:31 +0100 [thread overview]
Message-ID: <1350651813-8694-1-git-send-email-will.deacon@arm.com> (raw)
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.
Signed-off-by: Will Deacon <will.deacon@arm.com>
---
mm/highmem.c | 1 +
1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/mm/highmem.c b/mm/highmem.c
index d517cd1..2a07f97 100644
--- a/mm/highmem.c
+++ b/mm/highmem.c
@@ -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)
{
--
1.7.4.1
next reply other threads:[~2012-10-19 13:03 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-10-19 13:03 Will Deacon [this message]
2012-10-19 13:03 ` [PATCH v2 2/3] virtio: 9p: correctly pass physical address to userspace for high pages Will Deacon
2012-10-22 22:05 ` Andrew Morton
2012-10-19 13:03 ` [PATCH v2 3/3] virtio: force vring descriptors to be allocated from lowmem Will Deacon
2012-10-22 22:08 ` [PATCH v2 1/3] mm: highmem: export kmap_to_page for modules Andrew Morton
2012-10-22 23:55 ` Rusty Russell
2012-10-23 10:33 ` Will Deacon
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