From: "Aneesh Kumar K.V" Subject: [PATCH] ext4: Export needed symbol for ZERO_PAGE usage in modules. Date: Tue, 11 Mar 2008 11:16:32 +0530 Message-ID: <1205214392-8236-1-git-send-email-aneesh.kumar@linux.vnet.ibm.com> Cc: linux-ext4@vger.kernel.org, "Aneesh Kumar K.V" To: cmm@us.ibm.com, tytso@mit.edu Return-path: Received: from e28smtp05.in.ibm.com ([59.145.155.5]:44986 "EHLO e28esmtp05.in.ibm.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1756442AbYCKFqd (ORCPT ); Tue, 11 Mar 2008 01:46:33 -0400 Received: from d28relay02.in.ibm.com (d28relay02.in.ibm.com [9.184.220.59]) by e28esmtp05.in.ibm.com (8.13.1/8.13.1) with ESMTP id m2B5kVl6029991 for ; Tue, 11 Mar 2008 11:16:31 +0530 Received: from d28av02.in.ibm.com (d28av02.in.ibm.com [9.184.220.64]) by d28relay02.in.ibm.com (8.13.8/8.13.8/NCO v8.7) with ESMTP id m2B5kVoW1106082 for ; Tue, 11 Mar 2008 11:16:31 +0530 Received: from d28av02.in.ibm.com (loopback [127.0.0.1]) by d28av02.in.ibm.com (8.13.1/8.13.3) with ESMTP id m2B5kVl7008602 for ; Tue, 11 Mar 2008 05:46:31 GMT Sender: linux-ext4-owner@vger.kernel.org List-ID: ext4 use ZERO_PAGE(0) to zero out blocks. We need to export different symbols in different arch for the usage of ZERO_PAGE in modules. Signed-off-by: Aneesh Kumar K.V --- arch/arm/mm/mmu.c | 1 + arch/m68k/mm/init.c | 1 + arch/powerpc/kernel/ppc_ksyms.c | 2 ++ arch/sparc/kernel/sparc_ksyms.c | 2 ++ arch/sparc64/mm/init.c | 1 + 5 files changed, 7 insertions(+), 0 deletions(-) diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c index d41a75e..2d6d682 100644 --- a/arch/arm/mm/mmu.c +++ b/arch/arm/mm/mmu.c @@ -35,6 +35,7 @@ extern pgd_t swapper_pg_dir[PTRS_PER_PGD]; * zero-initialized data and COW. */ struct page *empty_zero_page; +EXPORT_SYMBOL(empty_zero_page); /* * The pmd table for the upper-most set of pages. diff --git a/arch/m68k/mm/init.c b/arch/m68k/mm/init.c index f42caa7..ee27ed2 100644 --- a/arch/m68k/mm/init.c +++ b/arch/m68k/mm/init.c @@ -69,6 +69,7 @@ void __init m68k_setup_node(int node) */ void *empty_zero_page; +EXPORT_SYMBOL(empty_zero_page); void show_mem(void) { diff --git a/arch/powerpc/kernel/ppc_ksyms.c b/arch/powerpc/kernel/ppc_ksyms.c index aa9ff35..97dab6e 100644 --- a/arch/powerpc/kernel/ppc_ksyms.c +++ b/arch/powerpc/kernel/ppc_ksyms.c @@ -189,3 +189,5 @@ EXPORT_SYMBOL(intercept_table); EXPORT_SYMBOL(__mtdcr); EXPORT_SYMBOL(__mfdcr); #endif + +EXPORT_SYMBOL(empty_zero_page); diff --git a/arch/sparc/kernel/sparc_ksyms.c b/arch/sparc/kernel/sparc_ksyms.c index c1025e5..e902846 100644 --- a/arch/sparc/kernel/sparc_ksyms.c +++ b/arch/sparc/kernel/sparc_ksyms.c @@ -295,3 +295,5 @@ EXPORT_SYMBOL(do_BUG); /* Sun Power Management Idle Handler */ EXPORT_SYMBOL(pm_idle); + +EXPORT_SYMBOL(empty_zero_page); diff --git a/arch/sparc64/mm/init.c b/arch/sparc64/mm/init.c index b5c3041..2d15f92 100644 --- a/arch/sparc64/mm/init.c +++ b/arch/sparc64/mm/init.c @@ -159,6 +159,7 @@ extern unsigned int sparc_ramdisk_image; extern unsigned int sparc_ramdisk_size; struct page *mem_map_zero __read_mostly; +EXPORT_SYMBOL(mem_map_zero); unsigned int sparc64_highest_unlocked_tlb_ent __read_mostly; -- 1.5.4.4.481.g5075.dirty