linux-kernel - Re: [PATCH 19 of 23] Unionfs: Helper macros/inlines

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Date:	Fri, 13 Oct 2006 11:23:51 +0300
From:	"Pekka Enberg" <penberg@...helsinki.fi>
To:	"Josef Jeff Sipek" <jsipek@...sunysb.edu>
Cc:	linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org,
	torvalds@...l.org, akpm@...l.org, hch@...radead.org,
	viro@....linux.org.uk
Subject: Re: [PATCH 19 of 23] Unionfs: Helper macros/inlines

Hi Josef,

The names of some of these macros are somewhat unreadable.

On 10/7/06, Josef Jeff Sipek <jsipek@...sunysb.edu> wrote:
> +/* Inode to private data */
> +static inline struct unionfs_inode_info *itopd(const struct inode *inode)
> +{
> +       return
> +           &(container_of(inode, struct unionfs_inode_container, vfs_inode)->
> +             info);
> +}

Rename to unionfs_inode?

> +#define itohi_ptr(ino) (itopd(ino)->uii_inode)

unionfs_hidden_inodes ?

> +#define ibstart(ino) (itopd(ino)->b_start)

unionfs_inode_branch_start ?

> +#define ibend(ino) (itopd(ino)->b_end)

unionfs_inode_branch_end ?

> +#define stopd(super) ((struct unionfs_sb_info *)(super)->s_fs_info)

unionfs_sb_info ?

> +#define stopd_lhs(super) ((super)->s_fs_info)

This you should drop.

> +#define sbstart(sb) 0

unionfs_sb_branch_start?

> +#define sbend(sb) stopd(sb)->b_end

unionfs_sb_branch_end?

> +#define sbmax(sb) (stopd(sb)->b_end + 1)

unionfs_sb_branch_max?

> +#define ftopd(file) ((struct unionfs_file_info *)((file)->private_data))

unionfs_file_info ?

> +#define ftopd_lhs(file) ((file)->private_data)

This you should drop.

> +#define ftohf_ptr(file)  (ftopd(file)->ufi_file)

unionfs_hidden_files ?

> +#define fbstart(file) (ftopd(file)->b_start)

unionfs_file_branch_start ?

> +#define fbend(file) (ftopd(file)->b_end)

unionfs_file_branch_end ?

> +
> +/* File to hidden file. */
> +static inline struct file *ftohf(struct file *f)
> +{
> +       return ftopd(f)->ufi_file[fbstart(f)];
> +}

unionfs_hidden_file ?

> +
> +static inline struct file *ftohf_index(const struct file *f, int index)
> +{
> +       return ftopd(f)->ufi_file[index];
> +}

__unionfs_hidden_file (and make the above use this too)?

> +
> +static inline void set_ftohf_index(struct file *f, int index, struct file *val)
> +{
> +       ftopd(f)->ufi_file[index] = val;
> +}

__unionfs_set_hidden_file ?

> +
> +static inline void set_ftohf(struct file *f, struct file *val)
> +{
> +       ftopd(f)->ufi_file[fbstart(f)] = val;
> +}

unionfs_set_hidden_file ?

[Same comments apply for the rest.]
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