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Commit e6bbef95 authored by Al Viro's avatar Al Viro
Browse files

ext3 ->tmpfile() support 



In this case we do need a bit more than usual, due to orphan
list handling.

Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
parent f4e0c30c

fs/ext3/namei.c

+46 −1
Original line number Diff line number Diff line
@@ -1762,6 +1762,45 @@ static int ext3_mknod (struct inode * dir, struct dentry *dentry, 
	return err;

}



static int ext3_tmpfile(struct inode *dir, struct dentry *dentry, umode_t mode)

{

	handle_t *handle;

	struct inode *inode;

	int err, retries = 0;



	dquot_initialize(dir);



retry:

	handle = ext3_journal_start(dir, EXT3_MAXQUOTAS_INIT_BLOCKS(dir->i_sb) +

			  4 + EXT3_XATTR_TRANS_BLOCKS);



	if (IS_ERR(handle))

		return PTR_ERR(handle);



	inode = ext3_new_inode (handle, dir, NULL, mode);

	err = PTR_ERR(inode);

	if (!IS_ERR(inode)) {

		inode->i_op = &ext3_file_inode_operations;

		inode->i_fop = &ext3_file_operations;

		ext3_set_aops(inode);

		err = ext3_orphan_add(handle, inode);

		if (err)

			goto err_drop_inode;

		mark_inode_dirty(inode);

		d_tmpfile(dentry, inode);

		unlock_new_inode(inode);

	}

	ext3_journal_stop(handle);

	if (err == -ENOSPC && ext3_should_retry_alloc(dir->i_sb, &retries))

		goto retry;

	return err;

err_drop_inode:

	ext3_journal_stop(handle);

	unlock_new_inode(inode);

	iput(inode);

	return err;

}



static int ext3_mkdir(struct inode * dir, struct dentry * dentry, umode_t mode)

{

	handle_t *handle;
@@ -2303,7 +2342,7 @@ static int ext3_link (struct dentry * old_dentry, 


retry:

	handle = ext3_journal_start(dir, EXT3_DATA_TRANS_BLOCKS(dir->i_sb) +

					EXT3_INDEX_EXTRA_TRANS_BLOCKS);

					EXT3_INDEX_EXTRA_TRANS_BLOCKS + 1);

	if (IS_ERR(handle))

		return PTR_ERR(handle);
@@ -2317,6 +2356,11 @@ static int ext3_link (struct dentry * old_dentry, 
	err = ext3_add_entry(handle, dentry, inode);

	if (!err) {

		ext3_mark_inode_dirty(handle, inode);

		/* this can happen only for tmpfile being

		 * linked the first time

		 */

		if (inode->i_nlink == 1)

			ext3_orphan_del(handle, inode);

		d_instantiate(dentry, inode);

	} else {

		drop_nlink(inode);
@@ -2519,6 +2563,7 @@ const struct inode_operations ext3_dir_inode_operations = { 
	.mkdir		= ext3_mkdir,

	.rmdir		= ext3_rmdir,

	.mknod		= ext3_mknod,

	.tmpfile	= ext3_tmpfile,

	.rename		= ext3_rename,

	.setattr	= ext3_setattr,

#ifdef CONFIG_EXT3_FS_XATTR