Re: [PATCH v1 v1 2/7] ntfs3: add namei tracepoints

Steven Rostedt <[email protected]> Tue, 21 Jul 2026 17:09:52 -0400

Newsgroups	dev.linux.lists.ntfs3,org.kernel.vger.linux-kernel,org.kernel.vger.linux-trace-kernel
Message-ID	<[email protected]>

On Fri, 17 Jul 2026 11:22:43 +0800
Baolin Liu <[email protected]> wrote:

> +TRACE_EVENT(ntfs3_lookup,
> +	TP_PROTO(struct inode *dir, struct dentry *dentry),
> +	TP_ARGS(dir, dentry),
> +	TP_STRUCT__entry(
> +		__field(dev_t, dev)
> +		__field(unsigned long, parent_ino)
> +		__string(name, dentry->d_name.name)
> +		__field(unsigned int, name_len)
> +	),
> +	TP_fast_assign(
> +		__entry->dev = dir->i_sb->s_dev;
> +		__entry->parent_ino = dir->i_ino;
> +		__assign_str(name);
> +		__entry->name_len = dentry->d_name.len;

Is dentry->d_name.len not equal to strlen(dentry->d_name.name) + 1 ?

-- Steve


> +	),
> +	TP_printk("dev=(%d,%d) parent=%lu name=%s len=%u",
> +		  MAJOR(__entry->dev), MINOR(__entry->dev),
> +		  __entry->parent_ino, __get_str(name),
> +		  __entry->name_len)
> +);