Sam Ravnborg wrote:
> On Sat, Jun 13, 2009 at 03:21:48PM +0200, Marco wrote:
>> From: Marco Stornelli <marco.stornelli@xxxxxxxxx>
>>
>> +#include <linux/types.h>
>> +
>> +#ifdef __KERNEL__
>> +#include <linux/sched.h>
>> +#include <linux/buffer_head.h>
>> +#include "pram_fs_sb.h"
>> +#endif
>
> The only reason to have this header file in include/linux/
> is that it is used by userspace.
> So please split it up so we have one header suitable for exporting
> and another header with all the promfs local stuff.
> The latter should be in fs/pramsfs/
Yeah you're right. Actually it's not used by userspace so I think I can
remove the ifdef.
>
>
>> +
>> +
>> +/*
>> + * Debug code
>> + */
>> +#ifdef __KERNEL__
>> +#define PFX "pramfs"
>> +#ifdef PRAMFS_DEBUG
>> +#define pram_dbg(format, arg...) \
>> + printk(KERN_DEBUG PFX ": " format , ## arg)
>> +#else
>> +#define pram_dbg(format, arg...) do {} while (0)
>> +#endif
>> +#define pram_err(format, arg...) \
>> + printk(KERN_ERR PFX ": " format , ## arg)
>> +#define pram_info(format, arg...) \
>> + printk(KERN_INFO PFX ": " format , ## arg)
>> +#define pram_warn(format, arg...) \
>> + printk(KERN_WARNING PFX ": " format , ## arg)
>> +#endif
>
> For a typical drivers we have some pr_* to avoid the above.
> Can they be used for a filesystem too?
Ok, I'll use them.
>
>> +
>> +/*
>> + * The PRAM file system magic number
>> + */
>> +#define PRAM_SUPER_MAGIC 0xEFFA
>
> Move to include/linux/magic.h
>
Ok.
>> +
>> +/*
>> + * Structure of an inode in PRAMFS
>> + */
>> +struct pram_inode {
>> + __u32 i_sum; /* checksum of this inode */
>> + __u32 i_uid; /* Owner Uid */
>> + __u32 i_gid; /* Group Id */
>> + __u16 i_mode; /* File mode */
>> + __u16 i_links_count; /* Links count */
>> + __u32 i_blocks; /* Blocks count */
>> + __u32 i_size; /* Size of data in bytes */
>> + __u32 i_atime; /* Access time */
>> + __u32 i_ctime; /* Creation time */
>> + __u32 i_mtime; /* Modification time */
>> + __u32 i_dtime; /* Deletion Time */
>> +
>> + union {
>> + struct {
>> + /*
>> + * ptr to row block of 2D block pointer array,
>> + * file block #'s 0 to (blocksize/4)^2 - 1.
>> + */
>> + off_t row_block;
>
> It is my understanding that we shall use: __kernel_off_t
> in exported headers.
>
> The headers are not added to Kbuild - so it is not exported.
> I assume thats an oversight.
>
> Sam
>
As I said it shouldn't be an exported header.
Marco
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