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Re: [PATCH 1/2] stop updating inode->i_blocks

To: Christoph Hellwig <hch@xxxxxx>
Subject: Re: [PATCH 1/2] stop updating inode->i_blocks
From: Eric Sandeen <sandeen@xxxxxxxxxxx>
Date: Sun, 16 Dec 2007 15:41:24 -0600
Cc: xfs@xxxxxxxxxxx
In-reply-to: <20071216163352.GB2107@lst.de>
References: <20071216163352.GB2107@lst.de>
Sender: xfs-bounce@xxxxxxxxxxx
User-agent: Thunderbird 2.0.0.9 (Macintosh/20071031)
Christoph Hellwig wrote:
> The VFS doesn't use i_blocks, it's only used by generic_fillattr and
> the generic quota code which XFS doesn't use.  In XFS there is one use
> to check whether we have an inline or out of line sumlink, but we can
> replace that with a check of the XFS_IFINLINE inode flag.
> 
> 
> Signed-off-by: Christoph Hellwig <hch@xxxxxx>

Looks reasonable to me.

Acked-by: Eric Sandeen <sandeen@xxxxxxxxxxx>

> Index: linux-2.6-xfs/fs/xfs/dmapi/xfs_dm.c
> ===================================================================
> --- linux-2.6-xfs.orig/fs/xfs/dmapi/xfs_dm.c  2007-11-30 10:14:10.000000000 
> +0100
> +++ linux-2.6-xfs/fs/xfs/dmapi/xfs_dm.c       2007-11-30 10:18:38.000000000 
> +0100
> @@ -2503,11 +2503,6 @@ xfs_dm_punch_hole(
>        */
>       if (!error && (len == 0)) {
>               error = xfs_free_eofblocks(mp, ip, XFS_FREE_EOF_NOLOCK);
> -             if (!error) {
> -                     /* Update linux inode block count after free above */
> -                     inode->i_blocks = XFS_FSB_TO_BB(mp,
> -                             ip->i_d.di_nblocks + ip->i_delayed_blks);
> -             }
>       }
>  
>       /*
> Index: linux-2.6-xfs/fs/xfs/linux-2.6/xfs_iops.c
> ===================================================================
> --- linux-2.6-xfs.orig/fs/xfs/linux-2.6/xfs_iops.c    2007-11-30 
> 10:15:48.000000000 +0100
> +++ linux-2.6-xfs/fs/xfs/linux-2.6/xfs_iops.c 2007-11-30 10:18:38.000000000 
> +0100
> @@ -202,9 +202,6 @@ xfs_validate_fields(
>       loff_t size;
>  
>       inode->i_nlink = ip->i_d.di_nlink;
> -     inode->i_blocks =
> -             XFS_FSB_TO_BB(ip->i_mount, ip->i_d.di_nblocks +
> -                                        ip->i_delayed_blks);
>       /* we're under i_sem so i_size can't change under us */
>       size = XFS_ISIZE(ip);
>       if (i_size_read(inode) != size)
> Index: linux-2.6-xfs/fs/xfs/linux-2.6/xfs_super.c
> ===================================================================
> --- linux-2.6-xfs.orig/fs/xfs/linux-2.6/xfs_super.c   2007-11-30 
> 10:15:48.000000000 +0100
> +++ linux-2.6-xfs/fs/xfs/linux-2.6/xfs_super.c        2007-11-30 
> 10:18:38.000000000 +0100
> @@ -568,7 +568,7 @@ xfs_set_inodeops(
>               break;
>       case S_IFLNK:
>               inode->i_op = &xfs_symlink_inode_operations;
> -             if (inode->i_blocks)
> +             if (!(XFS_I(inode)->i_df.if_flags & XFS_IFINLINE))
>                       inode->i_mapping->a_ops = &xfs_address_space_operations;
>               break;
>       default:
> @@ -605,8 +605,6 @@ xfs_revalidate_inode(
>  
>       inode->i_generation = ip->i_d.di_gen;
>       i_size_write(inode, ip->i_d.di_size);
> -     inode->i_blocks =
> -             XFS_FSB_TO_BB(mp, ip->i_d.di_nblocks + ip->i_delayed_blks);
>       inode->i_atime.tv_sec   = ip->i_d.di_atime.t_sec;
>       inode->i_atime.tv_nsec  = ip->i_d.di_atime.t_nsec;
>       inode->i_mtime.tv_sec   = ip->i_d.di_mtime.t_sec;
> Index: linux-2.6-xfs/fs/xfs/linux-2.6/xfs_vnode.c
> ===================================================================
> --- linux-2.6-xfs.orig/fs/xfs/linux-2.6/xfs_vnode.c   2007-11-30 
> 10:14:10.000000000 +0100
> +++ linux-2.6-xfs/fs/xfs/linux-2.6/xfs_vnode.c        2007-11-30 
> 10:18:38.000000000 +0100
> @@ -106,8 +106,6 @@ vn_revalidate(
>       inode->i_nlink      = ip->i_d.di_nlink;
>       inode->i_uid        = ip->i_d.di_uid;
>       inode->i_gid        = ip->i_d.di_gid;
> -     inode->i_blocks     =
> -             XFS_FSB_TO_BB(mp, ip->i_d.di_nblocks + ip->i_delayed_blks);
>       inode->i_mtime.tv_sec = ip->i_d.di_mtime.t_sec;
>       inode->i_mtime.tv_nsec = ip->i_d.di_mtime.t_nsec;
>       inode->i_ctime.tv_sec = ip->i_d.di_ctime.t_sec;
> Index: linux-2.6-xfs/fs/xfs/xfs_vnodeops.c
> ===================================================================
> --- linux-2.6-xfs.orig/fs/xfs/xfs_vnodeops.c  2007-11-30 10:14:10.000000000 
> +0100
> +++ linux-2.6-xfs/fs/xfs/xfs_vnodeops.c       2007-11-30 10:18:38.000000000 
> +0100
> @@ -1557,9 +1557,6 @@ xfs_release(
>                       error = xfs_free_eofblocks(mp, ip, XFS_FREE_EOF_LOCK);
>                       if (error)
>                               return error;
> -                     /* Update linux inode block count after free above */
> -                     vn_to_inode(vp)->i_blocks = XFS_FSB_TO_BB(mp,
> -                             ip->i_d.di_nblocks + ip->i_delayed_blks);
>               }
>       }
>  
> @@ -1633,9 +1630,6 @@ xfs_inactive(
>                       error = xfs_free_eofblocks(mp, ip, XFS_FREE_EOF_LOCK);
>                       if (error)
>                               return VN_INACTIVE_CACHE;
> -                     /* Update linux inode block count after free above */
> -                     vn_to_inode(vp)->i_blocks = XFS_FSB_TO_BB(mp,
> -                             ip->i_d.di_nblocks + ip->i_delayed_blks);
>               }
>               goto out;
>       }
> 
> 


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