On Wed, Dec 25, 2013 at 2:23 PM, Fabian Frederick <fabf@xxxxxxxxx> wrote:
> This patch is largely based on reiserfs_create function.
> -Removing dquot_initialize (cf ext2/tmpfile)
> -Removing add_entry code.
> -Adding d_tmpfile generic call.
>
> It was not extensively tested; other solutions would
> be to work with hidden entries or merge
> creation - tmpfile process.
Is it worth adding new features to a legacy file system like reiserfs?
> Signed-off-by: Fabian Frederick <fabf@xxxxxxxxx>
> ---
> fs/reiserfs/namei.c | 60 +++++++++++++++++++++++++++++++++++++++++++++++++++++
> 1 file changed, 60 insertions(+)
>
> diff --git a/fs/reiserfs/namei.c b/fs/reiserfs/namei.c
> index dc5236f..125060b 100644
> --- a/fs/reiserfs/namei.c
> +++ b/fs/reiserfs/namei.c
> @@ -637,6 +637,65 @@ static int reiserfs_create(struct inode *dir, struct dentry *dentry, umode_t mod
> return retval;
> }
>
> +
> +/* tmpfile function based on reiserfs_create without filename entry
> +*/
> +
> +static int reiserfs_tmpfile(struct inode *dir, struct dentry *dentry,
> + umode_t mode)
> +{
> + int retval;
> + struct inode *inode;
> + int jbegin_count =
> + JOURNAL_PER_BALANCE_CNT * 2 +
> + 2 * (REISERFS_QUOTA_INIT_BLOCKS(dir->i_sb) +
> + REISERFS_QUOTA_TRANS_BLOCKS(dir->i_sb));
> + struct reiserfs_transaction_handle th;
> + struct reiserfs_security_handle security;
> +
> + inode = new_inode(dir->i_sb);
> + if (!inode)
> + return -ENOMEM;
> +
> + new_inode_init(inode, dir, mode);
> +
> + jbegin_count += reiserfs_cache_default_acl(dir);
> + retval = reiserfs_security_init(dir, inode, &dentry->d_name, &security);
> + if (retval < 0) {
> + drop_new_inode(inode);
> + return retval;
> + }
> + jbegin_count += retval;
> + reiserfs_write_lock(dir->i_sb);
> +
> + retval = journal_begin(&th, dir->i_sb, jbegin_count);
> + if (retval) {
> + drop_new_inode(inode);
> + goto out_failed;
> + }
> +
> + retval =
> + reiserfs_new_inode(&th, dir, mode, NULL, 0 /*i_size */ , dentry,
> + inode, &security);
> + if (retval)
> + goto out_failed;
> +
> + inode->i_op = &reiserfs_file_inode_operations;
> + inode->i_fop = &reiserfs_file_operations;
> + inode->i_mapping->a_ops = &reiserfs_address_space_operations;
> +
> + reiserfs_update_inode_transaction(inode);
> + reiserfs_update_inode_transaction(dir);
> +
> + unlock_new_inode(inode);
> + d_tmpfile(dentry, inode);
> + retval = journal_end(&th, dir->i_sb, jbegin_count);
> +
> + out_failed:
> + reiserfs_write_unlock(dir->i_sb);
> + return retval;
> +}
> +
> static int reiserfs_mknod(struct inode *dir, struct dentry *dentry, umode_t mode,
> dev_t rdev)
> {
> @@ -1522,6 +1581,7 @@ const struct inode_operations reiserfs_dir_inode_operations = {
> .removexattr = reiserfs_removexattr,
> .permission = reiserfs_permission,
> .get_acl = reiserfs_get_acl,
> + .tmpfile = reiserfs_tmpfile,
> };
>
> /*
> --
> 1.8.1.4
> --
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--
Thanks,
//richard
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