Re: [PATCH 11/12] jfs: Convert to private i_dquot field

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You can add my
Acked-by: Dave Kleikamp <dave.kleikamp@xxxxxxxxxx>

On 10/10/2014 10:40 AM, Jan Kara wrote:
> On Fri 10-10-14 10:33:02, Dave Kleikamp wrote:
>> On 10/10/2014 09:55 AM, Jan Kara wrote:
>>> CC: Dave Kleikamp <shaggy@xxxxxxxxxx>
>>> CC: jfs-discussion@xxxxxxxxxxxxxxxxxxxxx
>>> Signed-off-by: Jan Kara <jack@xxxxxxx>
>>> ---
>>>  fs/jfs/jfs_incore.h |  3 +++
>>>  fs/jfs/super.c      | 13 +++++++++++++
>>>  2 files changed, 16 insertions(+)
>>>
>>> diff --git a/fs/jfs/jfs_incore.h b/fs/jfs/jfs_incore.h
>>> index cf47f09e8ac8..fa7e795bd8ae 100644
>>> --- a/fs/jfs/jfs_incore.h
>>> +++ b/fs/jfs/jfs_incore.h
>>> @@ -94,6 +94,9 @@ struct jfs_inode_info {
>>>  			unchar _inline_ea[128];	/* 128: inline extended attr */
>>>  		} link;
>>>  	} u;
>>> +#ifdef CONFIG_QUOTA
>>> +	struct dquot *i_dquot[MAXQUOTAS];
>>> +#endif
>>>  	u32 dev;	/* will die when we get wide dev_t */
>>>  	struct inode	vfs_inode;
>>>  };
>>> diff --git a/fs/jfs/super.c b/fs/jfs/super.c
>>> index adf8cb045b9e..a13727dd3826 100644
>>> --- a/fs/jfs/super.c
>>> +++ b/fs/jfs/super.c
>>> @@ -54,6 +54,7 @@ static struct kmem_cache *jfs_inode_cachep;
>>>  
>>>  static const struct super_operations jfs_super_operations;
>>>  static const struct export_operations jfs_export_operations;
>>> +static const int jfs_inode_fields[IF_FIELD_NR];
>>
>> see below
>>
>>>  static struct file_system_type jfs_fs_type;
>>>  
>>>  #define MAX_COMMIT_THREADS 64
>>> @@ -117,6 +118,9 @@ static struct inode *jfs_alloc_inode(struct super_block *sb)
>>>  	jfs_inode = kmem_cache_alloc(jfs_inode_cachep, GFP_NOFS);
>>>  	if (!jfs_inode)
>>>  		return NULL;
>>> +#ifdef CONFIG_QUOTA
>>> +	memset(&jfs_inode->i_dquot, 0, sizeof(jfs_inode->i_dquot));
>>> +#endif
>>>  	return &jfs_inode->vfs_inode;
>>>  }
>>>  
>>> @@ -537,7 +541,9 @@ static int jfs_fill_super(struct super_block *sb, void *data, int silent)
>>>  #ifdef CONFIG_QUOTA
>>>  	sb->dq_op = &dquot_operations;
>>>  	sb->s_qcop = &dquot_quotactl_ops;
>>> +	sb_dqopt(sb)->allowed_types = QTYPE_MASK_USR | QTYPE_MASK_GRP;
>>>  #endif
>>> +	sb_init_inode_fields(sb, jfs_inode_fields);
>>>  
>>>  	/*
>>>  	 * Initialize direct-mapping inode/address-space
>>> @@ -857,6 +863,13 @@ static const struct super_operations jfs_super_operations = {
>>>  #endif
>>>  };
>>>  
>>> +static const int jfs_inode_fields[IF_FIELD_NR] = {
>>> +#ifdef CONFIG_QUOTA
>>> +	[IF_DQUOTS] = (int)offsetof(struct jfs_inode_info, i_dquot) -
>>> +		      (int)offsetof(struct jfs_inode_info, vfs_inode),
>>> +#endif
>>> +};
>>
>> Why isn't the initialization done up above where jfs_inode_fields is
>> first defined?
>   There's no good reason, I'll move the definition. The code got created this
> way because I added the table in all filesystems after jfs_super_operations
> definition but JFS needed the structure earlier... Thanks for review.
> 
> 								Honza
> 

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