10 files changed, 21 insertions, 27 deletions

diff --git a/fs/nfs/delegation.c b/fs/nfs/delegation.c
index c55a761c22bb..7a1b6e869f9c 100644
--- a/fs/nfs/delegation.c
+++ b/fs/nfs/delegation.c
@@ -52,7 +52,7 @@ static int nfs_delegation_claim_locks(struct nfs_open_context *ctx, struct nfs4_
         for (fl = inode->i_flock; fl != 0; fl = fl->fl_next) {
                 if (!(fl->fl_flags & (FL_POSIX|FL_FLOCK)))
                         continue;
-                if ((struct nfs_open_context *)fl->fl_file->private_data != ctx)
+                if (nfs_file_open_context(fl->fl_file) != ctx)
                         continue;
                 status = nfs4_lock_delegation_recall(state, fl);
                 if (status >= 0)
diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
index dde545925b4e..b332c527d95d 100644
--- a/fs/nfs/dir.c
+++ b/fs/nfs/dir.c
@@ -558,7 +558,7 @@ static int nfs_readdir(struct file *filp, void *dirent, filldir_t filldir)
         memset(desc, 0, sizeof(*desc));
 
         desc->file = filp;
-        desc->dir_cookie = &((struct nfs_open_context *)filp->private_data)->dir_cookie;
+        desc->dir_cookie = &nfs_file_open_context(filp)->dir_cookie;
         desc->decode = NFS_PROTO(inode)->decode_dirent;
         desc->plus = NFS_USE_READDIRPLUS(inode);
 
@@ -623,7 +623,7 @@ static loff_t nfs_llseek_dir(struct file *filp, loff_t offset, int origin)
         }
         if (offset != filp->f_pos) {
                 filp->f_pos = offset;
-                ((struct nfs_open_context *)filp->private_data)->dir_cookie = 0;
+                nfs_file_open_context(filp)->dir_cookie = 0;
         }
 out:
         mutex_unlock(&filp->f_path.dentry->d_inode->i_mutex);
diff --git a/fs/nfs/direct.c b/fs/nfs/direct.c
index fcf4d384610e..28c8e1b65db0 100644
--- a/fs/nfs/direct.c
+++ b/fs/nfs/direct.c
@@ -368,7 +368,7 @@ static ssize_t nfs_direct_read(struct kiocb *iocb, unsigned long user_addr, size
                 return -ENOMEM;
 
         dreq->inode = inode;
-        dreq->ctx = get_nfs_open_context((struct nfs_open_context *)iocb->ki_filp->private_data);
+        dreq->ctx = get_nfs_open_context(nfs_file_open_context(iocb->ki_filp));
         if (!is_sync_kiocb(iocb))
                 dreq->iocb = iocb;
 
@@ -718,7 +718,7 @@ static ssize_t nfs_direct_write(struct kiocb *iocb, unsigned long user_addr, siz
                 sync = FLUSH_STABLE;
 
         dreq->inode = inode;
-        dreq->ctx = get_nfs_open_context((struct nfs_open_context *)iocb->ki_filp->private_data);
+        dreq->ctx = get_nfs_open_context(nfs_file_open_context(iocb->ki_filp));
         if (!is_sync_kiocb(iocb))
                 dreq->iocb = iocb;
 
diff --git a/fs/nfs/file.c b/fs/nfs/file.c
index 5595b32c0915..c664bb921425 100644
--- a/fs/nfs/file.c
+++ b/fs/nfs/file.c
@@ -208,7 +208,7 @@ static int nfs_do_fsync(struct nfs_open_context *ctx, struct inode *inode)
 static int
 nfs_file_flush(struct file *file, fl_owner_t id)
 {
-        struct nfs_open_context *ctx = (struct nfs_open_context *)file->private_data;
+        struct nfs_open_context *ctx = nfs_file_open_context(file);
         struct inode    *inode = file->f_path.dentry->d_inode;
         int             status;
 
@@ -296,7 +296,7 @@ nfs_file_mmap(struct file * file, struct vm_area_struct * vma)
 static int
 nfs_fsync(struct file *file, struct dentry *dentry, int datasync)
 {
-        struct nfs_open_context *ctx = (struct nfs_open_context *)file->private_data;
+        struct nfs_open_context *ctx = nfs_file_open_context(file);
         struct inode *inode = dentry->d_inode;
 
         dfprintk(VFS, "nfs: fsync(%s/%ld)\n", inode->i_sb->s_id, inode->i_ino);
@@ -395,7 +395,7 @@ static int nfs_need_sync_write(struct file *filp, struct inode *inode)
 
         if (IS_SYNC(inode) || (filp->f_flags & O_SYNC))
                 return 1;
-        ctx = filp->private_data;
+        ctx = nfs_file_open_context(filp);
         if (test_bit(NFS_CONTEXT_ERROR_WRITE, &ctx->flags))
                 return 1;
         return 0;
@@ -438,7 +438,7 @@ static ssize_t nfs_file_write(struct kiocb *iocb, const struct iovec *iov,
         result = generic_file_aio_write(iocb, iov, nr_segs, pos);
         /* Return error values for O_SYNC and IS_SYNC() */
         if (result >= 0 && nfs_need_sync_write(iocb->ki_filp, inode)) {
-                int err = nfs_do_fsync(iocb->ki_filp->private_data, inode);
+                int err = nfs_do_fsync(nfs_file_open_context(iocb->ki_filp), inode);
                 if (err < 0)
                         result = err;
         }
diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index 7c8ca175d87b..45633f9ad851 100644
--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -538,7 +538,7 @@ struct nfs_open_context *nfs_find_open_context(struct inode *inode, struct rpc_c
 static void nfs_file_clear_open_context(struct file *filp)
 {
         struct inode *inode = filp->f_path.dentry->d_inode;
-        struct nfs_open_context *ctx = (struct nfs_open_context *)filp->private_data;
+        struct nfs_open_context *ctx = nfs_file_open_context(filp);
 
         if (ctx) {
                 filp->private_data = NULL;
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index d856e9f5913b..2919271a983a 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -1390,7 +1390,7 @@ static int nfs4_intent_set_file(struct nameidata *nd, struct path *path, struct
         filp = lookup_instantiate_filp(nd, path->dentry, NULL);
         if (!IS_ERR(filp)) {
                 struct nfs_open_context *ctx;
-                ctx = (struct nfs_open_context *)filp->private_data;
+                ctx = nfs_file_open_context(filp);
                 ctx->state = state;
                 return 0;
         }
@@ -3303,7 +3303,7 @@ static int nfs4_proc_unlck(struct nfs4_state *state, int cmd, struct file_lock *
         status = -ENOMEM;
         if (seqid == NULL)
                 goto out;
-        task = nfs4_do_unlck(request, request->fl_file->private_data, lsp, seqid);
+        task = nfs4_do_unlck(request, nfs_file_open_context(request->fl_file), lsp, seqid);
         status = PTR_ERR(task);
         if (IS_ERR(task))
                 goto out;
@@ -3447,7 +3447,7 @@ static int _nfs4_do_setlk(struct nfs4_state *state, int cmd, struct file_lock *f
         int ret;
 
         dprintk("%s: begin!\n", __FUNCTION__);
-        data = nfs4_alloc_lockdata(fl, fl->fl_file->private_data,
+        data = nfs4_alloc_lockdata(fl, nfs_file_open_context(fl->fl_file),
                         fl->fl_u.nfs4_fl.owner);
         if (data == NULL)
                 return -ENOMEM;
@@ -3573,7 +3573,7 @@ nfs4_proc_lock(struct file *filp, int cmd, struct file_lock *request)
         int status;
 
         /* verify open state */
-        ctx = (struct nfs_open_context *)filp->private_data;
+        ctx = nfs_file_open_context(filp);
         state = ctx->state;
 
         if (request->fl_start < 0 || request->fl_end < 0)
diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c
index 3e4adf8c8312..bfb36261cecb 100644
--- a/fs/nfs/nfs4state.c
+++ b/fs/nfs/nfs4state.c
@@ -774,7 +774,7 @@ static int nfs4_reclaim_locks(struct nfs4_state_recovery_ops *ops, struct nfs4_s
         for (fl = inode->i_flock; fl != 0; fl = fl->fl_next) {
                 if (!(fl->fl_flags & (FL_POSIX|FL_FLOCK)))
                         continue;
-                if (((struct nfs_open_context *)fl->fl_file->private_data)->state != state)
+                if (nfs_file_open_context(fl->fl_file)->state != state)
                         continue;
                 status = ops->recover_lock(state, fl);
                 if (status >= 0)
diff --git a/fs/nfs/read.c b/fs/nfs/read.c
index 19e05633f4e3..d6e62d7afc72 100644
--- a/fs/nfs/read.c
+++ b/fs/nfs/read.c
@@ -497,8 +497,7 @@ int nfs_readpage(struct file *file, struct page *page)
                 if (ctx == NULL)
                         goto out_unlock;
         } else
-                ctx = get_nfs_open_context((struct nfs_open_context *)
-                                file->private_data);
+                ctx = get_nfs_open_context(nfs_file_open_context(file));
 
         error = nfs_readpage_async(ctx, inode, page);
 
@@ -576,8 +575,7 @@ int nfs_readpages(struct file *filp, struct address_space *mapping,
                 if (desc.ctx == NULL)
                         return -EBADF;
         } else
-                desc.ctx = get_nfs_open_context((struct nfs_open_context *)
-                                filp->private_data);
+                desc.ctx = get_nfs_open_context(nfs_file_open_context(filp));
         if (rsize < PAGE_CACHE_SIZE)
                 nfs_pageio_init(&pgio, inode, nfs_pagein_multi, rsize, 0);
         else
diff --git a/fs/nfs/write.c b/fs/nfs/write.c
index fb396ea5accf..3e9e268b887e 100644
--- a/fs/nfs/write.c
+++ b/fs/nfs/write.c
@@ -667,7 +667,7 @@ static struct nfs_page * nfs_update_request(struct nfs_open_context* ctx,
 
 int nfs_flush_incompatible(struct file *file, struct page *page)
 {
-        struct nfs_open_context *ctx = (struct nfs_open_context *)file->private_data;
+        struct nfs_open_context *ctx = nfs_file_open_context(file);
         struct nfs_page *req;
         int do_flush, status;
         /*
@@ -701,7 +701,7 @@ int nfs_flush_incompatible(struct file *file, struct page *page)
 int nfs_updatepage(struct file *file, struct page *page,
                 unsigned int offset, unsigned int count)
 {
-        struct nfs_open_context *ctx = (struct nfs_open_context *)file->private_data;
+        struct nfs_open_context *ctx = nfs_file_open_context(file);
         struct inode    *inode = page->mapping->host;
         int             status = 0;
 
diff --git a/include/linux/nfs_fs.h b/include/linux/nfs_fs.h
index 51e4a77030f1..5c200fd8c652 100644
--- a/include/linux/nfs_fs.h
+++ b/include/linux/nfs_fs.h
@@ -338,12 +338,8 @@ static inline struct nfs_open_context *nfs_file_open_context(struct file *filp)
 
 static inline struct rpc_cred *nfs_file_cred(struct file *file)
 {
-        if (file != NULL) {
-                struct nfs_open_context *ctx;
-
-                ctx = (struct nfs_open_context*)file->private_data;
-                return ctx->cred;
-        }
+        if (file != NULL)
+                return nfs_file_open_context(file)->cred;
         return NULL;
 }