Re: [PATCH v3 v3 5/7] ntfs3: add allocation tracepoints

[liubaolin <liubaolin12138@163.com>]

Dear Steven,
    Thanks for your review. You are right, I will fix it as suggested in v4.


Thanks,
Baolin

在 2026/8/12 04:04, Steven Rostedt 写道:
> On Fri,  7 Aug 2026 09:03:52 +0800
> Baolin Liu <liubaolin12138@163.com> wrote:
> 
>> @@ -960,6 +966,9 @@ int attr_data_get_block(struct ntfs_inode *ni, CLST vcn, CLST clen, CLST *lcn,
>>   	if (res)
>>   		*res = NULL;
>>   
>> +	trace_ntfs3_attr_data_get_block(&ni->vfs_inode, vcn, clen,
>> +					 new != NULL, zero, no_da);
> 
> Hmm, why not just pass new in. It looks like this is the only place that
> calls this tracepoint, right?
> 
> 
>> +TRACE_EVENT(ntfs3_attr_data_get_block,
>> +	TP_PROTO(struct inode *inode, u64 vcn, u64 clen, bool create,
>> +		 bool zero, bool no_da),
>> +	TP_ARGS(inode, vcn, clen, create, zero, no_da),
>> +	TP_STRUCT__entry(
>> +		__field(u64, vcn)
>> +		__field(u64, clen)
>> +		__field(unsigned long, ino)
>> +		__field(dev_t, dev)
>> +		__field(bool, create)
>> +		__field(bool, zero)
>> +		__field(bool, no_da)
>> +	),
>> +	TP_fast_assign(
>> +		__entry->vcn = vcn;
>> +		__entry->clen = clen;
>> +		__entry->ino = inode->i_ino;
>> +		__entry->dev = inode->i_sb->s_dev;
>> +		__entry->create = create;
> 
> Then you can have this be:
> 
> 		__entry->create = new != NULL;
> 
> and keep that logic out of the code and out of line in the trace event.
> 
> -- Steve
> 
>> +		__entry->zero = zero;
>> +		__entry->no_da = no_da;
>> +	),
>> +	TP_printk("dev=(%d,%d) ino=%lu vcn=%llu clen=%llu create=%d zero=%d no_da=%d",
>> +		  MAJOR(__entry->dev), MINOR(__entry->dev), __entry->ino,
>> +		  __entry->vcn, __entry->clen, __entry->create,
>> +		  __entry->zero, __entry->no_da)
>> +);
>> +
>>   #endif /* _TRACE_NTFS3_H */
>>   
>>   #include <trace/define_trace.h>