fs/9p: Move writeback fid to v9fs_inode

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>

1 files changed, 13 insertions, 8 deletions

diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c
index 411c70a88b36..fdc086d07447 100644
--- a/fs/9p/vfs_inode.c
+++ b/fs/9p/vfs_inode.c
@@ -219,6 +219,7 @@ struct inode *v9fs_alloc_inode(struct super_block *sb)
         v9inode->fscache_key = NULL;
         spin_lock_init(&v9inode->fscache_lock);
 #endif
+        v9inode->writeback_fid = NULL;
         return &v9inode->vfs_inode;
 }
 
@@ -414,6 +415,8 @@ error:
  */
 void v9fs_evict_inode(struct inode *inode)
 {
+        struct v9fs_inode *v9inode = V9FS_I(inode);
+
         truncate_inode_pages(inode->i_mapping, 0);
         end_writeback(inode);
         filemap_fdatawrite(inode->i_mapping);
@@ -421,10 +424,10 @@ void v9fs_evict_inode(struct inode *inode)
 #ifdef CONFIG_9P_FSCACHE
         v9fs_cache_inode_put_cookie(inode);
 #endif
-        /* clunk the fid stashed in inode->i_private */
-        if (inode->i_private) {
-                p9_client_clunk((struct p9_fid *)inode->i_private);
-                inode->i_private = NULL;
+        /* clunk the fid stashed in writeback_fid */
+        if (v9inode->writeback_fid) {
+                p9_client_clunk(v9inode->writeback_fid);
+                v9inode->writeback_fid = NULL;
         }
 }
 
@@ -607,9 +610,10 @@ v9fs_vfs_create(struct inode *dir, struct dentry *dentry, int mode,
         int err;
         u32 perm;
         int flags;
+        struct file *filp;
+        struct v9fs_inode *v9inode;
         struct v9fs_session_info *v9ses;
         struct p9_fid *fid, *inode_fid;
-        struct file *filp;
 
         err = 0;
         fid = NULL;
@@ -631,9 +635,10 @@ v9fs_vfs_create(struct inode *dir, struct dentry *dentry, int mode,
 
         /* if we are opening a file, assign the open fid to the file */
         if (nd && nd->flags & LOOKUP_OPEN) {
-                if (v9ses->cache && !dentry->d_inode->i_private) {
+                v9inode = V9FS_I(dentry->d_inode);
+                if (v9ses->cache && !v9inode->writeback_fid) {
                         /*
-                         * clone a fid and add it to inode->i_private
+                         * clone a fid and add it to writeback_fid
                          * we do it during open time instead of
                          * page dirty time via write_begin/page_mkwrite
                          * because we want write after unlink usecase
@@ -644,7 +649,7 @@ v9fs_vfs_create(struct inode *dir, struct dentry *dentry, int mode,
                                 err = PTR_ERR(inode_fid);
                                 goto error;
                         }
-                        dentry->d_inode->i_private = (void *) inode_fid;
+                        v9inode->writeback_fid = (void *) inode_fid;
                 }
                 filp = lookup_instantiate_filp(nd, dentry, generic_file_open);
                 if (IS_ERR(filp)) {