Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx> wrote: > POSIX requires that "If the file size is increased, the extended area > shall appear as if it were zero-filled". It is possible to use mmap to > write past EOF and that data will become visible instead of zeroes. > > Signed-off-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx> That seems to work. Do you want me to pass it on to Linus? If not: Acked-by: David Howells <dhowells@xxxxxxxxxx>
