linux-kernel - Re: [RFC v3 02/13] vfs: introduce private radix tree structures

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Message-ID: <CAEH94Lh8=Ww_wFH_Q6KkOFxbcZ9Tdh66M5yCe30aaSB-tUFg1Q@mail.gmail.com>
Date:	Thu, 11 Oct 2012 21:35:47 +0800
From:	Zhi Yong Wu <zwu.kernel@...il.com>
To:	dave@...os.cz, zwu.kernel@...il.com, linux-fsdevel@...r.kernel.org,
	linux-ext4@...r.kernel.org, linux-btrfs@...r.kernel.org,
	linux-kernel@...r.kernel.org, linuxram@...ux.vnet.ibm.com,
	viro@...iv.linux.org.uk, david@...morbit.com, tytso@....edu,
	cmm@...ibm.com, Zhi Yong Wu <wuzhy@...ux.vnet.ibm.com>
Subject: Re: [RFC v3 02/13] vfs: introduce private radix tree structures

On Wed, Oct 10, 2012 at 11:34 PM, David Sterba <dave@...os.cz> wrote:
> On Wed, Oct 10, 2012 at 06:07:24PM +0800, zwu.kernel@...il.com wrote:
>> +void hot_track_init(struct super_block *sb)
>> +{
> ...
>> +}
>
>> +void hot_track_exit(struct super_block *sb)
>> +{
>> +     hot_cache_exit();
>> +}
>
> Needs to be exported if btrfs is built as a module, otherwise does not
> link
>
>   LDS     arch/x86/boot/compressed/vmlinux.lds
>   AS      arch/x86/boot/compressed/head_64.o
>   CC      arch/x86/boot/compressed/misc.o
>   CC      arch/x86/boot/compressed/string.o
>   CC      arch/x86/boot/compressed/cmdline.o
>   CC      arch/x86/boot/compressed/early_serial_console.o
>   OBJCOPY arch/x86/boot/compressed/vmlinux.bin
> ERROR: "hot_track_init" [fs/btrfs/btrfs.ko] undefined!
> ERROR: "hot_track_exit" [fs/btrfs/btrfs.ko] undefined!
> make[1]: *** [__modpost] Error 1
> make: *** [modules] Error 2
> make: *** Waiting for unfinished jobs....
Sorry for late response at first. Great, thanks.

>
>
> david



-- 
Regards,

Zhi Yong Wu
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