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authorRussell King <rmk@dyn-67.arm.linux.org.uk>2008-10-31 15:08:35 +0000
committerRussell King <rmk+kernel@arm.linux.org.uk>2008-11-27 23:53:47 +0000
commit063b0a4207e43acbeff3d4b09f43e750e0212b48 (patch)
treeeb2a2c1faa732c763102040478830111fc13f2a5 /arch/arm/mm/proc-syms.c
parentd73e60b7144a86baf0fdfcc9537a70bb4f72e11c (diff)
downloadop-kernel-dev-063b0a4207e43acbeff3d4b09f43e750e0212b48.zip
op-kernel-dev-063b0a4207e43acbeff3d4b09f43e750e0212b48.tar.gz
[ARM] copypage: provide our own copy_user_highpage()
We used to override the copy_user_page() function. However, this is not only inefficient, it also causes additional complexity for highmem support, since we convert from a struct page to a kernel direct mapped address and back to a struct page again. Moreover, with highmem support, we end up pointlessly setting up kmap entries for pages which we're going to remap. So, push the kmapping down into the copypage implementation files where it's required. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/mm/proc-syms.c')
-rw-r--r--arch/arm/mm/proc-syms.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm/mm/proc-syms.c b/arch/arm/mm/proc-syms.c
index 2b5ba39..b9743e6 100644
--- a/arch/arm/mm/proc-syms.c
+++ b/arch/arm/mm/proc-syms.c
@@ -34,7 +34,7 @@ EXPORT_SYMBOL(cpu_cache);
#ifdef CONFIG_MMU
#ifndef MULTI_USER
EXPORT_SYMBOL(__cpu_clear_user_page);
-EXPORT_SYMBOL(__cpu_copy_user_page);
+EXPORT_SYMBOL(__cpu_copy_user_highpage);
#else
EXPORT_SYMBOL(cpu_user);
#endif
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