NFS: Remove nfs_begin_data_update/nfs_end_data_update

The lower level routines in fs/nfs/proc.c, fs/nfs/nfs3proc.c and
fs/nfs/nfs4proc.c should already be dealing with the revalidation issues.

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

6 files changed, 1 insertions, 64 deletions

diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
index a03ed2f85047..34da48586829 100644
--- a/fs/nfs/dir.c
+++ b/fs/nfs/dir.c
@@ -1001,12 +1001,7 @@ static struct dentry *nfs_atomic_lookup(struct inode *dir, struct dentry *dentry
                 goto out;
         }
 
-        if (nd->intent.open.flags & O_CREAT) {
-                nfs_begin_data_update(dir);
-                res = nfs4_atomic_open(dir, dentry, nd);
-                nfs_end_data_update(dir);
-        } else
-                res = nfs4_atomic_open(dir, dentry, nd);
+        res = nfs4_atomic_open(dir, dentry, nd);
         unlock_kernel();
         if (IS_ERR(res)) {
                 error = PTR_ERR(res);
@@ -1224,9 +1219,7 @@ static int nfs_create(struct inode *dir, struct dentry *dentry, int mode,
                 open_flags = nd->intent.open.flags;
 
         lock_kernel();
-        nfs_begin_data_update(dir);
         error = NFS_PROTO(dir)->create(dir, dentry, &attr, open_flags, nd);
-        nfs_end_data_update(dir);
         if (error != 0)
                 goto out_err;
         unlock_kernel();
@@ -1256,9 +1249,7 @@ nfs_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t rdev)
         attr.ia_valid = ATTR_MODE;
 
         lock_kernel();
-        nfs_begin_data_update(dir);
         status = NFS_PROTO(dir)->mknod(dir, dentry, &attr, rdev);
-        nfs_end_data_update(dir);
         if (status != 0)
                 goto out_err;
         unlock_kernel();
@@ -1284,9 +1275,7 @@ static int nfs_mkdir(struct inode *dir, struct dentry *dentry, int mode)
         attr.ia_mode = mode | S_IFDIR;
 
         lock_kernel();
-        nfs_begin_data_update(dir);
         error = NFS_PROTO(dir)->mkdir(dir, dentry, &attr);
-        nfs_end_data_update(dir);
         if (error != 0)
                 goto out_err;
         unlock_kernel();
@@ -1305,12 +1294,10 @@ static int nfs_rmdir(struct inode *dir, struct dentry *dentry)
                         dir->i_sb->s_id, dir->i_ino, dentry->d_name.name);
 
         lock_kernel();
-        nfs_begin_data_update(dir);
         error = NFS_PROTO(dir)->rmdir(dir, &dentry->d_name);
         /* Ensure the VFS deletes this inode */
         if (error == 0 && dentry->d_inode != NULL)
                 clear_nlink(dentry->d_inode);
-        nfs_end_data_update(dir);
         unlock_kernel();
 
         return error;
@@ -1368,17 +1355,13 @@ static int nfs_sillyrename(struct inode *dir, struct dentry *dentry)
 
         qsilly.name = silly;
         qsilly.len  = strlen(silly);
-        nfs_begin_data_update(dir);
         if (dentry->d_inode) {
-                nfs_begin_data_update(dentry->d_inode);
                 error = NFS_PROTO(dir)->rename(dir, &dentry->d_name,
                                 dir, &qsilly);
                 nfs_mark_for_revalidate(dentry->d_inode);
-                nfs_end_data_update(dentry->d_inode);
         } else
                 error = NFS_PROTO(dir)->rename(dir, &dentry->d_name,
                                 dir, &qsilly);
-        nfs_end_data_update(dir);
         if (!error) {
                 nfs_set_verifier(dentry, nfs_save_change_attribute(dir));
                 d_move(dentry, sdentry);
@@ -1412,19 +1395,15 @@ static int nfs_safe_remove(struct dentry *dentry)
                 goto out;
         }
 
-        nfs_begin_data_update(dir);
         if (inode != NULL) {
                 nfs_inode_return_delegation(inode);
-                nfs_begin_data_update(inode);
                 error = NFS_PROTO(dir)->remove(dir, &dentry->d_name);
                 /* The VFS may want to delete this inode */
                 if (error == 0)
                         drop_nlink(inode);
                 nfs_mark_for_revalidate(inode);
-                nfs_end_data_update(inode);
         } else
                 error = NFS_PROTO(dir)->remove(dir, &dentry->d_name);
-        nfs_end_data_update(dir);
 out:
         return error;
 }
@@ -1516,9 +1495,7 @@ static int nfs_symlink(struct inode *dir, struct dentry *dentry, const char *sym
                 memset(kaddr + pathlen, 0, PAGE_SIZE - pathlen);
         kunmap_atomic(kaddr, KM_USER0);
 
-        nfs_begin_data_update(dir);
         error = NFS_PROTO(dir)->symlink(dir, dentry, page, pathlen, &attr);
-        nfs_end_data_update(dir);
         if (error != 0) {
                 dfprintk(VFS, "NFS: symlink(%s/%ld, %s, %s) error %d\n",
                         dir->i_sb->s_id, dir->i_ino,
@@ -1558,15 +1535,11 @@ nfs_link(struct dentry *old_dentry, struct inode *dir, struct dentry *dentry)
                 dentry->d_parent->d_name.name, dentry->d_name.name);
 
         lock_kernel();
-        nfs_begin_data_update(dir);
-        nfs_begin_data_update(inode);
         error = NFS_PROTO(dir)->link(inode, dir, &dentry->d_name);
         if (error == 0) {
                 atomic_inc(&inode->i_count);
                 d_instantiate(dentry, inode);
         }
-        nfs_end_data_update(inode);
-        nfs_end_data_update(dir);
         unlock_kernel();
         return error;
 }
@@ -1669,15 +1642,9 @@ go_ahead:
                 d_delete(new_dentry);
         }
 
-        nfs_begin_data_update(old_dir);
-        nfs_begin_data_update(new_dir);
-        nfs_begin_data_update(old_inode);
         error = NFS_PROTO(old_dir)->rename(old_dir, &old_dentry->d_name,
                                            new_dir, &new_dentry->d_name);
         nfs_mark_for_revalidate(old_inode);
-        nfs_end_data_update(old_inode);
-        nfs_end_data_update(new_dir);
-        nfs_end_data_update(old_dir);
 out:
         if (rehash)
                 d_rehash(rehash);
diff --git a/fs/nfs/direct.c b/fs/nfs/direct.c
index 28c8e1b65db0..32fe97211eea 100644
--- a/fs/nfs/direct.c
+++ b/fs/nfs/direct.c
@@ -510,7 +510,6 @@ static void nfs_direct_write_complete(struct nfs_direct_req *dreq, struct inode
                         nfs_direct_write_reschedule(dreq);
                         break;
                 default:
-                        nfs_end_data_update(inode);
                         if (dreq->commit_data != NULL)
                                 nfs_commit_free(dreq->commit_data);
                         nfs_direct_free_writedata(dreq);
@@ -533,7 +532,6 @@ static inline void nfs_alloc_commit_data(struct nfs_direct_req *dreq)
 
 static void nfs_direct_write_complete(struct nfs_direct_req *dreq, struct inode *inode)
 {
-        nfs_end_data_update(inode);
         nfs_direct_free_writedata(dreq);
         nfs_zap_mapping(inode, inode->i_mapping);
         nfs_direct_complete(dreq);
@@ -724,8 +722,6 @@ static ssize_t nfs_direct_write(struct kiocb *iocb, unsigned long user_addr, siz
 
         nfs_add_stats(inode, NFSIOS_DIRECTWRITTENBYTES, count);
 
-        nfs_begin_data_update(inode);
-
         rpc_clnt_sigmask(clnt, &oldset);
         result = nfs_direct_write_schedule(dreq, user_addr, count, pos, sync);
         if (!result)
diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index 1d507a2a96d6..1c23d3a67c85 100644
--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -344,7 +344,6 @@ nfs_setattr(struct dentry *dentry, struct iattr *attr)
                 return 0;
 
         lock_kernel();
-        nfs_begin_data_update(inode);
         /* Write all dirty data */
         if (S_ISREG(inode->i_mode)) {
                 filemap_write_and_wait(inode->i_mapping);
@@ -358,7 +357,6 @@ nfs_setattr(struct dentry *dentry, struct iattr *attr)
         error = NFS_PROTO(inode)->setattr(dentry, &fattr, attr);
         if (error == 0)
                 nfs_refresh_inode(inode, &fattr);
-        nfs_end_data_update(inode);
         unlock_kernel();
         return error;
 }
@@ -755,23 +753,6 @@ out:
         return ret;
 }
 
-/**
- * nfs_end_data_update
- * @inode - pointer to inode
- * Declare end of the operations that will update file data
- * This will mark the inode as immediately needing revalidation
- * of its attribute cache.
- */
-void nfs_end_data_update(struct inode *inode)
-{
-        /* Directories: invalidate page cache */
-        if (S_ISDIR(inode->i_mode)) {
-                spin_lock(&inode->i_lock);
-                NFS_I(inode)->cache_validity |= NFS_INO_INVALID_DATA;
-                spin_unlock(&inode->i_lock);
-        }
-}
-
 static void nfs_wcc_update_inode(struct inode *inode, struct nfs_fattr *fattr)
 {
         struct nfs_inode *nfsi = NFS_I(inode);
diff --git a/fs/nfs/nfs3acl.c b/fs/nfs/nfs3acl.c
index 7322da4d2055..9b7362565c0c 100644
--- a/fs/nfs/nfs3acl.c
+++ b/fs/nfs/nfs3acl.c
@@ -317,13 +317,11 @@ static int nfs3_proc_setacls(struct inode *inode, struct posix_acl *acl,
         }
 
         dprintk("NFS call setacl\n");
-        nfs_begin_data_update(inode);
         msg.rpc_proc = &server->client_acl->cl_procinfo[ACLPROC3_SETACL];
         status = rpc_call_sync(server->client_acl, &msg, 0);
         spin_lock(&inode->i_lock);
         NFS_I(inode)->cache_validity |= NFS_INO_INVALID_ACCESS;
         spin_unlock(&inode->i_lock);
-        nfs_end_data_update(inode);
         dprintk("NFS reply setacl: %d\n", status);
 
         /* pages may have been allocated at the xdr layer. */
diff --git a/fs/nfs/unlink.c b/fs/nfs/unlink.c
index 045ab805c17f..1aed850d18f2 100644
--- a/fs/nfs/unlink.c
+++ b/fs/nfs/unlink.c
@@ -66,7 +66,6 @@ static void nfs_async_unlink_init(struct rpc_task *task, void *calldata)
                 .rpc_cred = data->cred,
         };
 
-        nfs_begin_data_update(dir);
         NFS_PROTO(dir)->unlink_setup(&msg, dir);
         rpc_call_setup(task, &msg, 0);
 }
@@ -84,8 +83,6 @@ static void nfs_async_unlink_done(struct rpc_task *task, void *calldata)
 
         if (!NFS_PROTO(dir)->unlink_done(task, dir))
                 rpc_restart_call(task);
-        else
-                nfs_end_data_update(dir);
 }
 
 /**
diff --git a/fs/nfs/write.c b/fs/nfs/write.c
index 3e9e268b887e..e2bb66c34406 100644
--- a/fs/nfs/write.c
+++ b/fs/nfs/write.c
@@ -378,7 +378,6 @@ static int nfs_inode_add_request(struct inode *inode, struct nfs_page *req)
                 return error;
         if (!nfsi->npages) {
                 igrab(inode);
-                nfs_begin_data_update(inode);
                 if (nfs_have_delegation(inode, FMODE_WRITE))
                         nfsi->change_attr++;
         }
@@ -406,7 +405,6 @@ static void nfs_inode_remove_request(struct nfs_page *req)
         nfsi->npages--;
         if (!nfsi->npages) {
                 spin_unlock(&inode->i_lock);
-                nfs_end_data_update(inode);
                 iput(inode);
         } else
                 spin_unlock(&inode->i_lock);