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Re: [patch] Use xfs_inode_clean() in more places

To: David Chinner <dgc@xxxxxxx>
Subject: Re: [patch] Use xfs_inode_clean() in more places
From: David Chinner <dgc@xxxxxxx>
Date: Fri, 15 Feb 2008 10:52:59 +1100
Cc: xfs-dev <xfs-dev@xxxxxxx>, xfs-oss <xfs@xxxxxxxxxxx>
In-reply-to: <20080121051647.GF155259@sgi.com>
References: <20080121051647.GF155259@sgi.com>
Sender: xfs-bounce@xxxxxxxxxxx
User-agent: Mutt/1.4.2.1i
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On Mon, Jan 21, 2008 at 04:16:47PM +1100, David Chinner wrote:
> Use xfs_inode_clean() in more places.
> 
> Version 2:
> - remove eye-hurting STATIC_INLINE
> - make check less verbose
> 
> Signed-off-by: Dave Chinner <dgc@xxxxxxx>
> ---
>  fs/xfs/xfs_inode.c      |   27 +++++----------------------
>  fs/xfs/xfs_inode_item.h |    8 ++++++++
>  fs/xfs/xfs_vnodeops.c   |    4 +---
>  3 files changed, 14 insertions(+), 25 deletions(-)
> 
> Index: 2.6.x-xfs-new/fs/xfs/xfs_inode.c
> ===================================================================
> --- 2.6.x-xfs-new.orig/fs/xfs/xfs_inode.c     2008-01-21 16:06:27.000000000 
> +1100
> +++ 2.6.x-xfs-new/fs/xfs/xfs_inode.c  2008-01-21 16:08:47.893673473 +1100
> @@ -2118,13 +2118,6 @@ xfs_iunlink_remove(
>       return 0;
>  }
>  
> -STATIC_INLINE int xfs_inode_clean(xfs_inode_t *ip)
> -{
> -     return (((ip->i_itemp == NULL) ||
> -             !(ip->i_itemp->ili_format.ilf_fields & XFS_ILOG_ALL)) &&
> -             (ip->i_update_core == 0));
> -}
> -
>  STATIC void
>  xfs_ifree_cluster(
>       xfs_inode_t     *free_ip,
> @@ -3004,7 +2997,6 @@ xfs_iflush_cluster(
>       int                     ilist_size;
>       xfs_inode_t             *ilist;
>       xfs_inode_t             *iq;
> -     xfs_inode_log_item_t    *iip;
>       int                     nr_found;
>       int                     clcount = 0;
>       int                     bufwasdelwri;
> @@ -3038,13 +3030,8 @@ xfs_iflush_cluster(
>                * is a candidate for flushing.  These checks will be repeated
>                * later after the appropriate locks are acquired.
>                */
> -             iip = iq->i_itemp;
> -             if ((iq->i_update_core == 0) &&
> -                 ((iip == NULL) ||
> -                  !(iip->ili_format.ilf_fields & XFS_ILOG_ALL)) &&
> -                   xfs_ipincount(iq) == 0) {
> +             if (xfs_inode_clean(iq) && xfs_ipincount(iq) == 0)
>                       continue;
> -             }
>  
>               /*
>                * Try to get locks.  If any are unavailable or it is pinned,
> @@ -3067,10 +3054,8 @@ xfs_iflush_cluster(
>                * arriving here means that this inode can be flushed.  First
>                * re-check that it's dirty before flushing.
>                */
> -             iip = iq->i_itemp;
> -             if ((iq->i_update_core != 0) || ((iip != NULL) &&
> -                  (iip->ili_format.ilf_fields & XFS_ILOG_ALL))) {
> -                     int error;
> +             if (!xfs_inode_clean(iq)) {
> +                     int     error;
>                       error = xfs_iflush_int(iq, bp);
>                       if (error) {
>                               xfs_iunlock(iq, XFS_ILOCK_SHARED);
> @@ -3174,8 +3159,7 @@ xfs_iflush(
>        * If the inode isn't dirty, then just release the inode
>        * flush lock and do nothing.
>        */
> -     if ((ip->i_update_core == 0) &&
> -         ((iip == NULL) || !(iip->ili_format.ilf_fields & XFS_ILOG_ALL))) {
> +     if (xfs_inode_clean(ip)) {
>               ASSERT((iip != NULL) ?
>                        !(iip->ili_item.li_flags & XFS_LI_IN_AIL) : 1);
>               xfs_ifunlock(ip);
> @@ -3341,8 +3325,7 @@ xfs_iflush_int(
>        * If the inode isn't dirty, then just release the inode
>        * flush lock and do nothing.
>        */
> -     if ((ip->i_update_core == 0) &&
> -         ((iip == NULL) || !(iip->ili_format.ilf_fields & XFS_ILOG_ALL))) {
> +     if (xfs_inode_clean(ip)) {
>               xfs_ifunlock(ip);
>               return 0;
>       }
> Index: 2.6.x-xfs-new/fs/xfs/xfs_vnodeops.c
> ===================================================================
> --- 2.6.x-xfs-new.orig/fs/xfs/xfs_vnodeops.c  2008-01-21 16:06:27.000000000 
> +1100
> +++ 2.6.x-xfs-new/fs/xfs/xfs_vnodeops.c       2008-01-21 16:08:47.897672964 
> +1100
> @@ -3490,7 +3490,6 @@ xfs_inode_flush(
>       int             flags)
>  {
>       xfs_mount_t     *mp = ip->i_mount;
> -     xfs_inode_log_item_t *iip = ip->i_itemp;
>       int             error = 0;
>  
>       if (XFS_FORCED_SHUTDOWN(mp))
> @@ -3500,8 +3499,7 @@ xfs_inode_flush(
>        * Bypass inodes which have already been cleaned by
>        * the inode flush clustering code inside xfs_iflush
>        */
> -     if ((ip->i_update_core == 0) &&
> -         ((iip == NULL) || !(iip->ili_format.ilf_fields & XFS_ILOG_ALL)))
> +     if (xfs_inode_clean(ip))
>               return 0;
>  
>       /*
> Index: 2.6.x-xfs-new/fs/xfs/xfs_inode_item.h
> ===================================================================
> --- 2.6.x-xfs-new.orig/fs/xfs/xfs_inode_item.h        2008-01-21 
> 16:06:27.000000000 +1100
> +++ 2.6.x-xfs-new/fs/xfs/xfs_inode_item.h     2008-01-21 16:14:34.001674576 
> +1100
> @@ -168,6 +168,14 @@ static inline int xfs_ilog_fext(int w)
>       return (w == XFS_DATA_FORK ? XFS_ILOG_DEXT : XFS_ILOG_AEXT);
>  }
>  
> +static inline int xfs_inode_clean(xfs_inode_t *ip)
> +{
> +     return (!ip->i_itemp ||
> +             !(ip->i_itemp->ili_format.ilf_fields & XFS_ILOG_ALL)) &&
> +            !ip->i_update_core;
> +}
> +
> +
>  #ifdef __KERNEL__
>  
>  extern void xfs_inode_item_init(struct xfs_inode *, struct xfs_mount *);

-- 
Dave Chinner
Principal Engineer
SGI Australian Software Group


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