From 50ec891cc54fb865c4c40c45845e60123e0e66ca Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Fri, 5 Sep 2008 16:43:20 -0400 Subject: [PATCH] Btrfs: cleanup d_obtain_alias useage d_obtain_alias is intended as a tailcall that can pass in errors encoded in the inode pointer if needed, so use it that way instead of duplicating the error handling. Signed-off-by: Christoph Hellwig Signed-off-by: Chris Mason --- fs/btrfs/export.c | 17 ++--------------- 1 file changed, 2 insertions(+), 15 deletions(-) diff --git a/fs/btrfs/export.c b/fs/btrfs/export.c index 292b0b2..2b357a6 100644 --- a/fs/btrfs/export.c +++ b/fs/btrfs/export.c @@ -68,7 +68,6 @@ static struct dentry *btrfs_get_dentry(struct super_block *sb, u64 objectid, { struct btrfs_root *root; struct inode *inode; - struct dentry *result; struct btrfs_key key; key.objectid = root_objectid; @@ -92,11 +91,7 @@ static struct dentry *btrfs_get_dentry(struct super_block *sb, u64 objectid, return ERR_PTR(-ESTALE); } - result = d_obtain_alias(inode); - if (!result) - return ERR_PTR(-ENOMEM); - - return result; + return d_obtain_alias(inode); } static struct dentry *btrfs_fh_to_parent(struct super_block *sb, struct fid *fh, @@ -148,8 +143,6 @@ static struct dentry *btrfs_fh_to_dentry(struct super_block *sb, struct fid *fh, static struct dentry *btrfs_get_parent(struct dentry *child) { struct inode *dir = child->d_inode; - struct inode *inode; - struct dentry *parent; struct btrfs_root *root = BTRFS_I(dir)->root; struct btrfs_key key; struct btrfs_path *path; @@ -203,13 +196,7 @@ static struct dentry *btrfs_get_parent(struct dentry *child) btrfs_set_key_type(&key, BTRFS_INODE_ITEM_KEY); key.offset = 0; - inode = btrfs_iget(root->fs_info->sb, &key, root, NULL); - - parent = d_obtain_alias(inode); - if (!parent) - parent = ERR_PTR(-ENOMEM); - - return parent; + return d_obtain_alias(btrfs_iget(root->fs_info->sb, &key, root, NULL)); } const struct export_operations btrfs_export_ops = { -- 2.7.4