RE: [PATCH v7 11/11] xfstests: fsx: Add fallocate insert range operation

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> >  		}
> >  		break;
> > +	case OP_INSERT_RANGE:
> > +		if (!insert_range_calls) {
> > +			log4(OP_SKIPPED, OP_INSERT_RANGE, offset, size);
> > +			goto out;
> > +		}
> > +		break;
> >  	}
> >
> >  	switch (op) {
> > @@ -1244,6 +1313,21 @@ test(void)
> >  		}
> >  		do_collapse_range(offset, size);
> >  		break;
> > +	case OP_INSERT_RANGE:
> > +		TRIM_OFF_LEN(offset, size, (maxfilelen - 1) - file_size);
> 
> I see a ton of "skipping insert beyond EOF" messages when I run fsx with
> this patch that boil down to that we trim against the max allowable file
> size increase rather than the current file size. I suspect the intent
> here is to not limit the insert length based on the file size. That
> makes sense, but that causes us to fail to mod the insert offset against
> the file size and thus generate a ton more noise.
> 
> Could we either open code the trim to handle the offset/len correctly or
> break up the macro in a way that facilitates doing so? For example, a
> quick solution might be to create TRIM_OFF() and TRIM_LEN() based on the
> associated code in TRIM_OFF_LEN(), redefine TRIM_OFF_LEN() to use the
> new macros, and then the insert range code could do something like:
> 
> 	TRIM_OFF(offset, file_size - 1);
> 	TRIM_LEN(offset, size, maxfilelen - file_size);
> 	...
> 
Okay, I will change it as your suggestion.

> Brian
> 

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