[XFS] kill the v_number member in struct bhv_vnode

It's entirely unused except for ignored arguments in the mrlock
initialization, so remove it.

SGI-PV: 969608
SGI-Modid: xfs-linux-melb:xfs-kern:29499a

Signed-off-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: David Chinner <dgc@sgi.com>
Signed-off-by: Tim Shimmin <tes@sgi.com>

3 files changed, 2 insertions, 11 deletions

diff --git a/fs/xfs/linux-2.6/xfs_vnode.c b/fs/xfs/linux-2.6/xfs_vnode.c
index 9d9464cf8de4..b7ff26780a0c 100644
--- a/fs/xfs/linux-2.6/xfs_vnode.c
+++ b/fs/xfs/linux-2.6/xfs_vnode.c
@@ -31,8 +31,6 @@
 #include "xfs_ag.h"
 #include "xfs_mount.h"
 
-uint64_t vn_generation;         /* vnode generation number */
-DEFINE_SPINLOCK(vnumber_lock);
 
 /*
  * Dedicated vnode inactive/reclaim sync semaphores.
@@ -95,12 +93,6 @@ vn_initialize(
         XFS_STATS_INC(vn_active);
         XFS_STATS_INC(vn_alloc);
 
-        spin_lock(&vnumber_lock);
-        if (!++vn_generation)   /* v_number shouldn't be zero */
-                vn_generation++;
-        vp->v_number = vn_generation;
-        spin_unlock(&vnumber_lock);
-
         ASSERT(VN_CACHED(vp) == 0);
 
         return vp;
diff --git a/fs/xfs/linux-2.6/xfs_vnode.h b/fs/xfs/linux-2.6/xfs_vnode.h
index 2b161361c1a0..a5c14a8d546a 100644
--- a/fs/xfs/linux-2.6/xfs_vnode.h
+++ b/fs/xfs/linux-2.6/xfs_vnode.h
@@ -28,7 +28,6 @@ typedef struct dentry	bhv_vname_t;
 typedef __u64           bhv_vnumber_t;
 
 typedef struct bhv_vnode {
-        bhv_vnumber_t   v_number;               /* in-core vnode number */
         struct inode    v_inode;                /* Linux inode */
         /* inode MUST be last */
 } bhv_vnode_t;
diff --git a/fs/xfs/xfs_iget.c b/fs/xfs/xfs_iget.c
index 001cec705e28..03f32c68731f 100644
--- a/fs/xfs/xfs_iget.c
+++ b/fs/xfs/xfs_iget.c
@@ -421,8 +421,8 @@ xfs_inode_lock_init(
         bhv_vnode_t     *vp)
 {
         mrlock_init(&ip->i_lock, MRLOCK_ALLOW_EQUAL_PRI|MRLOCK_BARRIER,
-                     "xfsino", (long)vp->v_number);
-        mrlock_init(&ip->i_iolock, MRLOCK_BARRIER, "xfsio", vp->v_number);
+                     "xfsino", ip->i_ino);
+        mrlock_init(&ip->i_iolock, MRLOCK_BARRIER, "xfsio", ip->i_ino);
         init_waitqueue_head(&ip->i_ipin_wait);
         atomic_set(&ip->i_pincount, 0);
         initnsema(&ip->i_flock, 1, "xfsfino");