linux-ext4 - Re: [PATCH] ext4: fix build failure if DX

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Message-ID: <484FF75B.8090403@redhat.com>
Date:	Wed, 11 Jun 2008 11:03:39 -0500
From:	Eric Sandeen <sandeen@...hat.com>
To:	Li Zefan <lizf@...fujitsu.com>
CC:	"Theodore Ts'o" <tytso@....edu>, Mingming Cao <cmm@...ibm.com>,
	linux-ext4@...r.kernel.org
Subject: Re: [PATCH] ext4: fix build failure if DX_DEBUG

Li Zefan wrote:
> I got build failure when I turned on DX_DEBUG.
> 
> fs/ext4/namei.c: In function ‘dx_show_leaf’:
> fs/ext4/namei.c:291: error: implicit declaration of function ‘ext4_next_entry’
> fs/ext4/namei.c:291: warning: assignment makes pointer from integer without a cast
> 
> Move the definition of ext4_next_entry() upwards just as ext3 code.
> 
> Signed-off-by: Li Zefan <lizf@...fujitsu.com>

Thanks,  I added this to the bugfix portion of the ext4 patch queue.

-Eric

> ---
>  fs/ext4/namei.c |   19 ++++++++++---------
>  1 files changed, 10 insertions(+), 9 deletions(-)
> 
> diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c
> index ab16bea..4315fd7 100644
> --- a/fs/ext4/namei.c
> +++ b/fs/ext4/namei.c
> @@ -183,6 +183,16 @@ static int ext4_dx_add_entry(handle_t *handle, struct dentry *dentry,
>  			     struct inode *inode);
>  
>  /*
> + * p is at least 6 bytes before the end of page
> + */
> +static inline struct ext4_dir_entry_2 *
> +ext4_next_entry(struct ext4_dir_entry_2 *p)
> +{
> +	return (struct ext4_dir_entry_2 *)((char *)p +
> +		ext4_rec_len_from_disk(p->rec_len));
> +}
> +
> +/*
>   * Future: use high four bits of block for coalesce-on-delete flags
>   * Mask them off for now.
>   */
> @@ -554,15 +564,6 @@ static int ext4_htree_next_block(struct inode *dir, __u32 hash,
>  
>  
>  /*
> - * p is at least 6 bytes before the end of page
> - */
> -static inline struct ext4_dir_entry_2 *ext4_next_entry(struct ext4_dir_entry_2 *p)
> -{
> -	return (struct ext4_dir_entry_2 *)((char *)p +
> -		ext4_rec_len_from_disk(p->rec_len));
> -}
> -
> -/*
>   * This function fills a red-black tree with information from a
>   * directory block.  It returns the number directory entries loaded
>   * into the tree.  If there is an error it is returned in err.

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