Goswin von Brederlow: > Why? When a page is accessed the filesystem gets a read request and > reads it either from the RO branch or the delta branch. Why should it > need to copy up the full file? For example, - you have two mmap for a single file - the first mapping is done, it may map the file on the lower rdonly layer - the other mapping modifies the contents - can the first mapping see the new content? Of course, it may depend on the implementation. J. R. Okajima -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
