NFS: Remove NFS_I(inode)->data_updates

We have no more users...

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

2 files changed, 7 insertions, 28 deletions

diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index d722a0e84361..1d507a2a96d6 100644
--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -85,7 +85,6 @@ void nfs_clear_inode(struct inode *inode)
          */
         BUG_ON(nfs_have_writebacks(inode));
         BUG_ON(!list_empty(&NFS_I(inode)->open_files));
-        BUG_ON(atomic_read(&NFS_I(inode)->data_updates) != 0);
         nfs_zap_acl_cache(inode);
         nfs_access_zap_cache(inode);
 }
@@ -757,16 +756,6 @@ out:
 }
 
 /**
- * nfs_begin_data_update
- * @inode - pointer to inode
- * Declare that a set of operations will update file data on the server
- */
-void nfs_begin_data_update(struct inode *inode)
-{
-        atomic_inc(&NFS_I(inode)->data_updates);
-}
-
-/**
  * nfs_end_data_update
  * @inode - pointer to inode
  * Declare end of the operations that will update file data
@@ -775,15 +764,12 @@ void nfs_begin_data_update(struct inode *inode)
  */
 void nfs_end_data_update(struct inode *inode)
 {
-        struct nfs_inode *nfsi = NFS_I(inode);
-
         /* Directories: invalidate page cache */
         if (S_ISDIR(inode->i_mode)) {
                 spin_lock(&inode->i_lock);
-                nfsi->cache_validity |= NFS_INO_INVALID_DATA;
+                NFS_I(inode)->cache_validity |= NFS_INO_INVALID_DATA;
                 spin_unlock(&inode->i_lock);
         }
-        atomic_dec(&nfsi->data_updates);
 }
 
 static void nfs_wcc_update_inode(struct inode *inode, struct nfs_fattr *fattr)
@@ -823,7 +809,6 @@ static int nfs_check_inode_attributes(struct inode *inode, struct nfs_fattr *fat
 {
         struct nfs_inode *nfsi = NFS_I(inode);
         loff_t cur_size, new_isize;
-        int data_unstable;
 
 
         /* Has the inode gone and changed behind our back? */
@@ -832,9 +817,6 @@ static int nfs_check_inode_attributes(struct inode *inode, struct nfs_fattr *fat
                 return -EIO;
         }
 
-        /* Are we in the process of updating data on the server? */
-        data_unstable = nfs_caches_unstable(inode);
-
         /* Do atomic weak cache consistency updates */
         nfs_wcc_update_inode(inode, fattr);
 
@@ -1162,7 +1144,6 @@ static void init_once(void * foo, struct kmem_cache * cachep, unsigned long flag
         INIT_LIST_HEAD(&nfsi->access_cache_entry_lru);
         INIT_LIST_HEAD(&nfsi->access_cache_inode_lru);
         INIT_RADIX_TREE(&nfsi->nfs_page_tree, GFP_ATOMIC);
-        atomic_set(&nfsi->data_updates, 0);
         nfsi->ncommit = 0;
         nfsi->npages = 0;
         nfs4_init_once(nfsi);
diff --git a/include/linux/nfs_fs.h b/include/linux/nfs_fs.h
index c947803a7ba4..1b4edc6f7fd7 100644
--- a/include/linux/nfs_fs.h
+++ b/include/linux/nfs_fs.h
@@ -136,11 +136,6 @@ struct nfs_inode {
          * server.
          */
         unsigned long           cache_change_attribute;
-        /*
-         * Counter indicating the number of outstanding requests that
-         * will cause a file data update.
-         */
-        atomic_t                data_updates;
 
         struct rb_root          access_cache;
         struct list_head        access_cache_entry_lru;
@@ -224,9 +219,13 @@ static inline struct nfs_inode *NFS_I(struct inode *inode)
 
 #define NFS_FILEID(inode)               (NFS_I(inode)->fileid)
 
-static inline int nfs_caches_unstable(struct inode *inode)
+/**
+ * nfs_begin_data_update
+ * @inode - pointer to inode
+ * Declare that a set of operations will update file data on the server
+ */
+static inline void nfs_begin_data_update(struct inode *inode)
 {
-        return atomic_read(&NFS_I(inode)->data_updates) != 0;
 }
 
 static inline void nfs_mark_for_revalidate(struct inode *inode)
@@ -299,7 +298,6 @@ extern int nfs_setattr(struct dentry *, struct iattr *);
 extern void nfs_setattr_update_inode(struct inode *inode, struct iattr *attr);
 extern void nfs_begin_attr_update(struct inode *);
 extern void nfs_end_attr_update(struct inode *);
-extern void nfs_begin_data_update(struct inode *);
 extern void nfs_end_data_update(struct inode *);
 extern struct nfs_open_context *get_nfs_open_context(struct nfs_open_context *ctx);
 extern void put_nfs_open_context(struct nfs_open_context *ctx);