From: Steffen Prohaska Date: Wed, 06 Aug 2014 04:22:58 GMT Subject: Re: [PATCH] convert: Stream from fd to required clean filter instead of mmap Message-ID: <36DA9A8E-2F61-4DD3-9F82-427976C710A6@zib.de> In-Reply-To: I'll address the comments about style in a revised patch. On Aug 4, 2014, at 9:03 PM, Junio C Hamano wrote: >> + return apply_filter(path, 0, 0, -1, 0, ca.drv->clean); > > What's the significance of "-1" here? Does somebody in the > callchain from apply_filter() check if fd < 0 and act differently > (not a complaint nor rhetoric question)? The decision in apply_filter() to return before the real work is taken on the first 0. Any value for fd would be ok. The -1 is only a reminder that the fd is invalid. Steffen