Merge /spare/repo/linux-2.6/

1 files changed, 28 insertions, 60 deletions

diff --git a/fs/9p/vfs_file.c b/fs/9p/vfs_file.c
index 1f8ae7d580ab..a4799e971d1c 100644
--- a/fs/9p/vfs_file.c
+++ b/fs/9p/vfs_file.c
@@ -53,30 +53,36 @@
 int v9fs_file_open(struct inode *inode, struct file *file)
 {
         struct v9fs_session_info *v9ses = v9fs_inode2v9ses(inode);
-        struct v9fs_fid *v9fid = v9fs_fid_lookup(file->f_dentry, FID_WALK);
-        struct v9fs_fid *v9newfid = NULL;
+        struct v9fs_fid *v9fid, *fid;
         struct v9fs_fcall *fcall = NULL;
         int open_mode = 0;
         unsigned int iounit = 0;
         int newfid = -1;
         long result = -1;
 
-        dprintk(DEBUG_VFS, "inode: %p file: %p v9fid= %p\n", inode, file,
-                v9fid);
+        dprintk(DEBUG_VFS, "inode: %p file: %p \n", inode, file);
+
+        v9fid = v9fs_fid_get_created(file->f_dentry);
+        if (!v9fid)
+                v9fid = v9fs_fid_lookup(file->f_dentry);
 
         if (!v9fid) {
-                struct dentry *dentry = file->f_dentry;
                 dprintk(DEBUG_ERROR, "Couldn't resolve fid from dentry\n");
+                return -EBADF;
+        }
 
-                /* XXX - some duplication from lookup, generalize later */
-                /* basically vfs_lookup is too heavy weight */
-                v9fid = v9fs_fid_lookup(file->f_dentry, FID_OP);
-                if (!v9fid)
-                        return -EBADF;
+        if (!v9fid->fidcreate) {
+                fid = kmalloc(sizeof(struct v9fs_fid), GFP_KERNEL);
+                if (fid == NULL) {
+                        dprintk(DEBUG_ERROR, "Out of Memory\n");
+                        return -ENOMEM;
+                }
 
-                v9fid = v9fs_fid_lookup(dentry->d_parent, FID_WALK);
-                if (!v9fid)
-                        return -EBADF;
+                fid->fidopen = 0;
+                fid->fidcreate = 0;
+                fid->fidclunked = 0;
+                fid->iounit = 0;
+                fid->v9ses = v9ses;
 
                 newfid = v9fs_get_idpool(&v9ses->fidpool);
                 if (newfid < 0) {
@@ -85,58 +91,16 @@ int v9fs_file_open(struct inode *inode, struct file *file)
                 }
 
                 result =
-                    v9fs_t_walk(v9ses, v9fid->fid, newfid,
-                                (char *)file->f_dentry->d_name.name, NULL);
+                    v9fs_t_walk(v9ses, v9fid->fid, newfid, NULL, NULL);
+
                 if (result < 0) {
                         v9fs_put_idpool(newfid, &v9ses->fidpool);
                         dprintk(DEBUG_ERROR, "rewalk didn't work\n");
                         return -EBADF;
                 }
 
-                v9fid = v9fs_fid_create(dentry);
-                if (v9fid == NULL) {
-                        dprintk(DEBUG_ERROR, "couldn't insert\n");
-                        return -ENOMEM;
-                }
-                v9fid->fid = newfid;
-        }
-
-        if (v9fid->fidcreate) {
-                /* create case */
-                newfid = v9fid->fid;
-                iounit = v9fid->iounit;
-                v9fid->fidcreate = 0;
-        } else {
-                if (!S_ISDIR(inode->i_mode))
-                        newfid = v9fid->fid;
-                else {
-                        newfid = v9fs_get_idpool(&v9ses->fidpool);
-                        if (newfid < 0) {
-                                eprintk(KERN_WARNING, "allocation failed\n");
-                                return -ENOSPC;
-                        }
-                        /* This would be a somewhat critical clone */
-                        result =
-                            v9fs_t_walk(v9ses, v9fid->fid, newfid, NULL,
-                                        &fcall);
-                        if (result < 0) {
-                                dprintk(DEBUG_ERROR, "clone error: %s\n",
-                                        FCALL_ERROR(fcall));
-                                kfree(fcall);
-                                return result;
-                        }
-
-                        v9newfid = v9fs_fid_create(file->f_dentry);
-                        v9newfid->fid = newfid;
-                        v9newfid->qid = v9fid->qid;
-                        v9newfid->iounit = v9fid->iounit;
-                        v9newfid->fidopen = 0;
-                        v9newfid->fidclunked = 0;
-                        v9newfid->v9ses = v9ses;
-                        v9fid = v9newfid;
-                        kfree(fcall);
-                }
-
+                fid->fid = newfid;
+                v9fid = fid;
                 /* TODO: do special things for O_EXCL, O_NOFOLLOW, O_SYNC */
                 /* translate open mode appropriately */
                 open_mode = file->f_flags & 0x3;
@@ -163,9 +127,13 @@ int v9fs_file_open(struct inode *inode, struct file *file)
 
                 iounit = fcall->params.ropen.iounit;
                 kfree(fcall);
+        } else {
+                /* create case */
+                newfid = v9fid->fid;
+                iounit = v9fid->iounit;
+                v9fid->fidcreate = 0;
         }
 
-
         file->private_data = v9fid;
 
         v9fid->rdir_pos = 0;