Re: [patch 33/35] fs: icache introduce inode_get/inode_get_ilock

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On 10/19/2010 05:42 AM, npiggin@xxxxxxxxx wrote:
> Factor open coded inode lock, increment, unlock into a function inode_get().
> Rename __iget to inode_get_ilock.
> 
> Signed-off-by: Nick Piggin <npiggin@xxxxxxxxx>
> 
> ---

<>

> Index: linux-2.6/fs/exofs/inode.c
> ===================================================================
> --- linux-2.6.orig/fs/exofs/inode.c	2010-10-19 14:18:58.000000000 +1100
> +++ linux-2.6/fs/exofs/inode.c	2010-10-19 14:19:16.000000000 +1100
> @@ -1162,9 +1162,7 @@
>  	/* increment the refcount so that the inode will still be around when we
>  	 * reach the callback
>  	 */
> -	spin_lock(&inode->i_lock);
> -	inode->i_count++;
> -	spin_unlock(&inode->i_lock);
> +	inode_get(inode);
>  
>  	ios->done = create_done;
>  	ios->private = inode;
> Index: linux-2.6/fs/exofs/namei.c
> ===================================================================
> --- linux-2.6.orig/fs/exofs/namei.c	2010-10-19 14:18:58.000000000 +1100
> +++ linux-2.6/fs/exofs/namei.c	2010-10-19 14:19:00.000000000 +1100
> @@ -153,9 +153,7 @@
>  
>  	inode->i_ctime = CURRENT_TIME;
>  	inode_inc_link_count(inode);
> -	spin_lock(&inode->i_lock);
> -	inode->i_count++;
> -	spin_unlock(&inode->i_lock);
> +	inode_get(inode);
>  
>  	return exofs_add_nondir(dentry, inode);
>  }

Why won't you define an intermediate inode_get() in patch 08/35 and
change both puts and gets of all file_systems in one patch? Instead
of two tree sweeping patches. (At least for all the trivial places
like here)

Thanks
Boaz


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