On Thu, Jul 24, 2025 at 08:12:13AM +0000, John Garry wrote: > The DAX write path does not support IOCB_ATOMIC, so reject it when set. > > Suggested-by: Darrick J. Wong <djw...@kernel.org> > Signed-off-by: John Garry <john.g.ga...@oracle.com>
Reviewed-by: "Darrick J. Wong" <djw...@kernel.org> --D > --- > fs/dax.c | 3 +++ > 1 file changed, 3 insertions(+) > > diff --git a/fs/dax.c b/fs/dax.c > index ea0c35794bf9..d9ce810fee9e 100644 > --- a/fs/dax.c > +++ b/fs/dax.c > @@ -1756,6 +1756,9 @@ dax_iomap_rw(struct kiocb *iocb, struct iov_iter *iter, > loff_t done = 0; > int ret; > > + if (WARN_ON_ONCE(iocb->ki_flags & IOCB_ATOMIC)) > + return -EIO; > + > if (!iomi.len) > return 0; > > -- > 2.43.5 > >
