From: Christoph Hellwig <hch@infradead.org>
Date: Tue, 5 Feb 2008 01:13:53 +0000 (+1100)
Subject: [XFS] keep i_nlink updated and use proper accessors
X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=4188c78d951d8a44630f4c33bc0f5b63374572a4;p=openwrt%2Fstaging%2Fblogic.git

[XFS] keep i_nlink updated and use proper accessors

To get the read-only bind mounts in -mm to work correctly with XFS we need
to call the drop_nlink and inc_nlink helpers to monitor the link count.
Add calls to these to xfs_bumplink and xfs_droplink and stop copying over
di_nlink to i_nlink in xfs_validate_fields and vn_revalidate.

SGI-PV: 971186
SGI-Modid: xfs-linux-melb:xfs-kern:30392a

Signed-off-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
---

diff --git a/fs/xfs/linux-2.6/xfs_iops.c b/fs/xfs/linux-2.6/xfs_iops.c
index 5e16016bf657..cc4abd3daa49 100644
--- a/fs/xfs/linux-2.6/xfs_iops.c
+++ b/fs/xfs/linux-2.6/xfs_iops.c
@@ -201,7 +201,6 @@ xfs_validate_fields(
 	struct xfs_inode	*ip = XFS_I(inode);
 	loff_t size;
 
-	inode->i_nlink = ip->i_d.di_nlink;
 	/* we're under i_sem so i_size can't change under us */
 	size = XFS_ISIZE(ip);
 	if (i_size_read(inode) != size)
diff --git a/fs/xfs/linux-2.6/xfs_vnode.c b/fs/xfs/linux-2.6/xfs_vnode.c
index 9bf36dc48a6e..44a48ef90073 100644
--- a/fs/xfs/linux-2.6/xfs_vnode.c
+++ b/fs/xfs/linux-2.6/xfs_vnode.c
@@ -103,7 +103,6 @@ vn_revalidate(
 
 	xfs_ilock(ip, XFS_ILOCK_SHARED);
 	inode->i_mode	    = ip->i_d.di_mode;
-	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_mtime.tv_sec = ip->i_d.di_mtime.t_sec;
diff --git a/fs/xfs/xfs_utils.c b/fs/xfs/xfs_utils.c
index 4df466fa3a40..45d740df53b7 100644
--- a/fs/xfs/xfs_utils.c
+++ b/fs/xfs/xfs_utils.c
@@ -302,6 +302,7 @@ xfs_droplink(
 
 	ASSERT (ip->i_d.di_nlink > 0);
 	ip->i_d.di_nlink--;
+	drop_nlink(ip->i_vnode);
 	xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
 
 	error = 0;
@@ -365,6 +366,7 @@ xfs_bumplink(
 
 	ASSERT(ip->i_d.di_nlink > 0);
 	ip->i_d.di_nlink++;
+	inc_nlink(ip->i_vnode);
 	if ((ip->i_d.di_version == XFS_DINODE_VERSION_1) &&
 	    (ip->i_d.di_nlink > XFS_MAXLINK_1)) {
 		/*