Dave Kleikamp: > The lower read-only file would not appear to user-space as the same file > at all. It would have its own address space. It clearly would not see > the new content. > > There wouldn't be any problem with reading pages from the lower file for > the upper file one at a time as they are faulted. I am afraid that I cannot understand fully what you wrote (due to my poor English). Do you mean that the entire file copyup will be necessary? 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
