Re: [PATCH 2/6 v6] vfs: export do_splice_direct() to modules
From: richard -rw- weinberger
Date: Tue Mar 01 2011 - 10:49:15 EST
Miklos,
On Tue, Mar 1, 2011 at 1:36 PM, Miklos Szeredi <miklos@xxxxxxxxxx> wrote:
> From: Miklos Szeredi <mszeredi@xxxxxxx>
>
> Export do_splice_direct() to modules. Needed by overlay filesystem.
>
> Signed-off-by: Miklos Szeredi <mszeredi@xxxxxxx>
> ---
> fs/splice.c | 1 +
> 1 file changed, 1 insertion(+)
>
> Index: linux-2.6/fs/splice.c
> ===================================================================
> --- linux-2.6.orig/fs/splice.c 2011-02-22 11:04:39.000000000 +0100
> +++ linux-2.6/fs/splice.c 2011-03-01 12:18:16.000000000 +0100
> @@ -1296,6 +1296,7 @@ long do_splice_direct(struct file *in, l
>
> return ret;
> }
> +EXPORT_SYMBOL(do_splice_direct);
I have a question on your patch, why are you using EXPORT_SYMBOL()
instead of EXPORT_SYMBOL_GPL()?
Are you using EXPORT_SYMBOL() because all symbols in fs/splice.c
are exported via EXPORT_SYMBOL()?
To be more precise, are there any rules to decide when _GPL() should be used?
IMHO we should always use _GPL() for new symbols.
> static int splice_pipe_to_pipe(struct pipe_inode_info *ipipe,
> struct pipe_inode_info *opipe,
>
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--
Thanks,
//richard
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