Matthew Wilcox <willy@xxxxxxxxxxxxx> wrote: > This is a read, not a write ... but we don't care about ki_pos being > updated, so that store can be conditioned on IOCB_SWAP being clear. > Or instead of storing directly to ki_pos, we take a pointer to ki_pos > and then redirect that pointer somewhere harmless. But see also ext4_dio_read_iter(), for example. That touches ki_filp after starting the op. David
