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switch btrfs, close races

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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2010-12-20 10:56:06 -05:00
parent ba87167c06
commit af53d29ac1
3 changed files with 3 additions and 12 deletions
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12
fs/btrfs/export.c
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@ -65,7 +65,6 @@ static struct dentry *btrfs_get_dentry(struct super_block *sb, u64 objectid,
{
struct btrfs_fs_info *fs_info = btrfs_sb(sb)->fs_info;
struct btrfs_root *root;
struct dentry *dentry;
struct inode *inode;
struct btrfs_key key;
int index;
@ -108,10 +107,7 @@ static struct dentry *btrfs_get_dentry(struct super_block *sb, u64 objectid,
return ERR_PTR(-ESTALE);
}
dentry = d_obtain_alias(inode);
if (!IS_ERR(dentry))
d_set_d_op(dentry, &btrfs_dentry_operations);
return dentry;
return d_obtain_alias(inode);
fail:
srcu_read_unlock(&fs_info->subvol_srcu, index);
return ERR_PTR(err);
@ -166,7 +162,6 @@ 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 dentry *dentry;
struct btrfs_root *root = BTRFS_I(dir)->root;
struct btrfs_path *path;
struct extent_buffer *leaf;
@ -223,10 +218,7 @@ static struct dentry *btrfs_get_parent(struct dentry *child)
key.type = BTRFS_INODE_ITEM_KEY;
key.offset = 0;
dentry = d_obtain_alias(btrfs_iget(root->fs_info->sb, &key, root, NULL));
if (!IS_ERR(dentry))
d_set_d_op(dentry, &btrfs_dentry_operations);
return dentry;
return d_obtain_alias(btrfs_iget(root->fs_info->sb, &key, root, NULL));
fail:
btrfs_free_path(path);
return ERR_PTR(ret);

2
fs/btrfs/inode.c
View file

@ -4084,8 +4084,6 @@ struct inode *btrfs_lookup_dentry(struct inode *dir, struct dentry *dentry)
int index;
int ret;
d_set_d_op(dentry, &btrfs_dentry_operations);
if (dentry->d_name.len > BTRFS_NAME_LEN)
return ERR_PTR(-ENAMETOOLONG);

1
fs/btrfs/super.c
View file

@ -460,6 +460,7 @@ static int btrfs_fill_super(struct super_block *sb,
sb->s_maxbytes = MAX_LFS_FILESIZE;
sb->s_magic = BTRFS_SUPER_MAGIC;
sb->s_op = &btrfs_super_ops;
sb->s_d_op = &btrfs_dentry_operations;
sb->s_export_op = &btrfs_export_ops;
sb->s_xattr = btrfs_xattr_handlers;
sb->s_time_gran = 1;