linux-ext4 - Re: [EXT4 set 4][PATCH 4/5] i_version:ext4 inode version update

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Message-ID: <4689F2D2.7020809@linux.vnet.ibm.com>
Date:	Tue, 03 Jul 2007 12:25:14 +0530
From:	"Aneesh Kumar K.V" <aneesh.kumar@...ux.vnet.ibm.com>
To:	cmm@...ibm.com
CC:	linux-ext4@...r.kernel.org
Subject: Re: [EXT4 set 4][PATCH 4/5] i_version:ext4 inode version update



Mingming Cao wrote:
> This patch is on top of i_version_update_vfs.
> The i_version field of the inode is set on inode creation and incremented when
> the inode is being modified.
> ta));
>  	ei->i_dir_start_lookup = 0;
> Index: linux-2.6.22-rc4/fs/ext4/inode.c
> ===================================================================
> --- linux-2.6.22-rc4.orig/fs/ext4/inode.c	2007-06-13 17:21:29.000000000 -0700
> +++ linux-2.6.22-rc4/fs/ext4/inode.c	2007-06-13 17:24:45.000000000 -0700
> @@ -3082,6 +3082,7 @@ int ext4_mark_iloc_dirty(handle_t *handl
>  {
>  	int err = 0;
> 
> +	inode->i_version++;
>  	/* the do_update_inode consumes one bh->b_count */
>  	get_bh(iloc->bh);
> 

If we bump i_version  in ext4_mark_iloc_dity then we should be removing the i_version update
at other places. A simple grep of ext4 dir shows i_version being updated followed by 
ext4_mark_inode_dirty.


-aneesh
-
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