[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 5e16016..cc4abd3 100644
--- a/fs/xfs/linux-2.6/xfs_iops.c
+++ b/fs/xfs/linux-2.6/xfs_iops.c
@@ -201,7 +201,6 @@
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 9bf36dc..44a48ef 100644
--- a/fs/xfs/linux-2.6/xfs_vnode.c
+++ b/fs/xfs/linux-2.6/xfs_vnode.c
@@ -103,7 +103,6 @@
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 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)) {
/*