[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/xfs_utils.c b/fs/xfs/xfs_utils.c
index 4df466f..45d740d 100644
--- a/fs/xfs/xfs_utils.c
+++ b/fs/xfs/xfs_utils.c
@@ -302,6 +302,7 @@
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 @@
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)) {
/*