configfs: make configfs_create() return inode
Get rid of the callback, deal with that and dentry in callers
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Christoph Hellwig <hch@lst.de>
diff --git a/fs/configfs/configfs_internal.h b/fs/configfs/configfs_internal.h
index 520f181..c1f2125 100644
--- a/fs/configfs/configfs_internal.h
+++ b/fs/configfs/configfs_internal.h
@@ -66,7 +66,7 @@ extern struct kmem_cache *configfs_dir_cachep;
extern int configfs_is_root(struct config_item *item);
extern struct inode * configfs_new_inode(umode_t mode, struct configfs_dirent *, struct super_block *);
-extern int configfs_create(struct dentry *, umode_t mode, void (*init)(struct inode *));
+extern struct inode *configfs_create(struct dentry *, umode_t mode);
extern int configfs_create_file(struct config_item *, const struct configfs_attribute *);
extern int configfs_create_bin_file(struct config_item *,
diff --git a/fs/configfs/dir.c b/fs/configfs/dir.c
index fbd6f9d..728d1f1 100644
--- a/fs/configfs/dir.c
+++ b/fs/configfs/dir.c
@@ -265,32 +265,6 @@ static void configfs_remove_dirent(struct dentry *dentry)
configfs_put(sd);
}
-static void init_dir(struct inode * inode)
-{
- inode->i_op = &configfs_dir_inode_operations;
- inode->i_fop = &configfs_dir_operations;
-
- /* directory inodes start off with i_nlink == 2 (for "." entry) */
- inc_nlink(inode);
-}
-
-static void configfs_init_file(struct inode * inode)
-{
- inode->i_size = PAGE_SIZE;
- inode->i_fop = &configfs_file_operations;
-}
-
-static void configfs_init_bin_file(struct inode *inode)
-{
- inode->i_size = 0;
- inode->i_fop = &configfs_bin_file_operations;
-}
-
-static void init_symlink(struct inode * inode)
-{
- inode->i_op = &configfs_symlink_inode_operations;
-}
-
/**
* configfs_create_dir - create a directory for an config_item.
* @item: config_itemwe're creating directory for.
@@ -306,6 +280,7 @@ static int configfs_create_dir(struct config_item *item, struct dentry *dentry,
int error;
umode_t mode = S_IFDIR| S_IRWXU | S_IRUGO | S_IXUGO;
struct dentry *p = dentry->d_parent;
+ struct inode *inode;
BUG_ON(!item);
@@ -320,17 +295,24 @@ static int configfs_create_dir(struct config_item *item, struct dentry *dentry,
return error;
configfs_set_dir_dirent_depth(p->d_fsdata, dentry->d_fsdata);
- error = configfs_create(dentry, mode, init_dir);
- if (error)
+ inode = configfs_create(dentry, mode);
+ if (IS_ERR(inode))
goto out_remove;
+ inode->i_op = &configfs_dir_inode_operations;
+ inode->i_fop = &configfs_dir_operations;
+ /* directory inodes start off with i_nlink == 2 (for "." entry) */
+ inc_nlink(inode);
+ d_instantiate(dentry, inode);
+ /* already hashed */
+ dget(dentry); /* pin directory dentries in core */
inc_nlink(d_inode(p));
item->ci_dentry = dentry;
return 0;
out_remove:
configfs_remove_dirent(dentry);
- return error;
+ return PTR_ERR(inode);
}
/*
@@ -378,20 +360,25 @@ int configfs_create_link(struct configfs_symlink *sl,
int err = 0;
umode_t mode = S_IFLNK | S_IRWXUGO;
struct configfs_dirent *p = parent->d_fsdata;
+ struct inode *inode;
err = configfs_make_dirent(p, dentry, sl, mode,
CONFIGFS_ITEM_LINK, p->s_frag);
if (err)
return err;
- err = configfs_create(dentry, mode, init_symlink);
- if (err)
+ inode = configfs_create(dentry, mode);
+ if (IS_ERR(inode))
goto out_remove;
+
+ inode->i_op = &configfs_symlink_inode_operations;
+ d_instantiate(dentry, inode);
+ dget(dentry); /* pin link dentries in core */
return 0;
out_remove:
configfs_remove_dirent(dentry);
- return err;
+ return PTR_ERR(inode);
}
static void remove_dir(struct dentry * d)
@@ -440,20 +427,27 @@ static void configfs_remove_dir(struct config_item * item)
static int configfs_attach_attr(struct configfs_dirent * sd, struct dentry * dentry)
{
struct configfs_attribute * attr = sd->s_element;
- int error;
+ struct inode *inode;
spin_lock(&configfs_dirent_lock);
dentry->d_fsdata = configfs_get(sd);
sd->s_dentry = dentry;
spin_unlock(&configfs_dirent_lock);
- error = configfs_create(dentry, (attr->ca_mode & S_IALLUGO) | S_IFREG,
- (sd->s_type & CONFIGFS_ITEM_BIN_ATTR) ?
- configfs_init_bin_file :
- configfs_init_file);
- if (error)
+ inode = configfs_create(dentry, (attr->ca_mode & S_IALLUGO) | S_IFREG);
+ if (IS_ERR(inode)) {
configfs_put(sd);
- return error;
+ return PTR_ERR(inode);
+ }
+ if (sd->s_type & CONFIGFS_ITEM_BIN_ATTR) {
+ inode->i_size = 0;
+ inode->i_fop = &configfs_bin_file_operations;
+ } else {
+ inode->i_size = PAGE_SIZE;
+ inode->i_fop = &configfs_file_operations;
+ }
+ d_add(dentry, inode);
+ return 0;
}
static struct dentry * configfs_lookup(struct inode *dir,
diff --git a/fs/configfs/inode.c b/fs/configfs/inode.c
index ab02843..9c3d3098 100644
--- a/fs/configfs/inode.c
+++ b/fs/configfs/inode.c
@@ -164,41 +164,27 @@ static void configfs_set_inode_lock_class(struct configfs_dirent *sd,
#endif /* CONFIG_LOCKDEP */
-int configfs_create(struct dentry * dentry, umode_t mode, void (*init)(struct inode *))
+struct inode *configfs_create(struct dentry *dentry, umode_t mode)
{
- int error = 0;
struct inode *inode = NULL;
struct configfs_dirent *sd;
struct inode *p_inode;
if (!dentry)
- return -ENOENT;
+ return ERR_PTR(-ENOENT);
if (d_really_is_positive(dentry))
- return -EEXIST;
+ return ERR_PTR(-EEXIST);
sd = dentry->d_fsdata;
inode = configfs_new_inode(mode, sd, dentry->d_sb);
if (!inode)
- return -ENOMEM;
+ return ERR_PTR(-ENOMEM);
p_inode = d_inode(dentry->d_parent);
p_inode->i_mtime = p_inode->i_ctime = current_time(p_inode);
configfs_set_inode_lock_class(sd, inode);
-
- init(inode);
- if (S_ISDIR(mode) || S_ISLNK(mode)) {
- /*
- * ->symlink(), ->mkdir(), configfs_register_subsystem() or
- * create_default_group() - already hashed.
- */
- d_instantiate(dentry, inode);
- dget(dentry); /* pin link and directory dentries in core */
- } else {
- /* ->lookup() */
- d_add(dentry, inode);
- }
- return error;
+ return inode;
}
/*