From: Ramkumar Ramachandra Date: Mon, 07 Jun 2010 15:16:18 GMT Subject: Explanation for dropping write-back in mmap Message-ID: Hi Junio, In the commit f48000fcbe100, you've forced the caller to use MAP_PRIVATE in the alternative mmap implementation dropping write-back support. Could you kindly explain the rationale for this? David's SVN exporter uses mmap with MAP_SHARED, and we figured that the merge immediately breaks this functionality. Noticed-by: Jonathan Nieder ----------------------------------------------------------------------------------------------------------- commit f48000fcbe1009c18f1cc46e56cde2cb632071fa Author: Junio C Hamano Date: Sat Oct 8 15:54:36 2005 -0700 Yank writing-back support from gitfakemmap. We do not write through our use of mmap(), so make sure callers pass MAP_PRIVATE and remove support for writing changes back. Signed-off-by: Junio C Hamano ----------------------------------------------------------------------------------------------------------- Thanks. -- Ram