Re: [PATCH] ppc: Export empty_zero_page

[Theodore Tso <tytso@mit.edu>]

Once again, this time with feeling....

						- Ted

>From c91cfaabc17f8a53807a2f31f067a732e34a1550 Mon Sep 17 00:00:00 2001
From: Theodore Ts'o <tytso@mit.edu>
Date: Wed, 12 Mar 2008 11:50:39 -0400
Subject: [PATCH] [PATCH] powerpc: Export empty_zero_page

The empty_zero_page symbol is exported by most other architectures
(s390, ia64, x86, um), and an upcoming ext4 patch needs it because
ZERO_PAGE() references empty_zero_page, and we need it to zero out an
unitialized extents in ext4 files.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
---
 arch/powerpc/kernel/ppc_ksyms.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/arch/powerpc/kernel/ppc_ksyms.c b/arch/powerpc/kernel/ppc_ksyms.c
index aa9ff35..885a723 100644
--- a/arch/powerpc/kernel/ppc_ksyms.c
+++ b/arch/powerpc/kernel/ppc_ksyms.c
@@ -58,6 +58,7 @@ extern void program_check_exception(struct pt_regs *regs);
 extern void single_step_exception(struct pt_regs *regs);
 extern int sys_sigreturn(struct pt_regs *regs);
 
+EXPORT_SYMBOL(empty_zero_page);
 EXPORT_SYMBOL(clear_pages);
 EXPORT_SYMBOL(copy_page);
 EXPORT_SYMBOL(ISA_DMA_THRESHOLD);
-- 
1.5.4.1.144.gdfee-dirty