On 2020/06/18 2:27, Kanchan Joshi wrote: > Introduce IOCB_CMD_ZONE_APPEND opcode for zone-append. On append > completion zone-relative offset is returned using io_event->res2. > > Signed-off-by: Kanchan Joshi <[email protected]> > Signed-off-by: Arnav Dawn <[email protected]> > Signed-off-by: SelvaKumar S <[email protected]> > Signed-off-by: Nitesh Shetty <[email protected]> > Signed-off-by: Javier Gonzalez <[email protected]> > --- > fs/aio.c | 8 ++++++++ > include/uapi/linux/aio_abi.h | 1 + > 2 files changed, 9 insertions(+) > > diff --git a/fs/aio.c b/fs/aio.c > index 7ecddc2..8b10a55d 100644 > --- a/fs/aio.c > +++ b/fs/aio.c > @@ -1579,6 +1579,10 @@ static int aio_write(struct kiocb *req, const struct > iocb *iocb, > __sb_start_write(file_inode(file)->i_sb, > SB_FREEZE_WRITE, true); > __sb_writers_release(file_inode(file)->i_sb, > SB_FREEZE_WRITE); > } > +#ifdef CONFIG_BLK_DEV_ZONED > + if (iocb->aio_lio_opcode == IOCB_CMD_ZONE_APPEND) > + req->ki_flags |= IOCB_ZONE_APPEND; > +#endif > req->ki_flags |= IOCB_WRITE; > aio_rw_done(req, call_write_iter(file, req, &iter)); > } > @@ -1846,6 +1850,10 @@ static int __io_submit_one(struct kioctx *ctx, const > struct iocb *iocb, > return aio_fsync(&req->fsync, iocb, true); > case IOCB_CMD_POLL: > return aio_poll(req, iocb); > +#ifdef CONFIG_BLK_DEV_ZONED > + case IOCB_CMD_ZONE_APPEND: > + return aio_write(&req->rw, iocb, false, compat); > +#endif > default: > pr_debug("invalid aio operation %d\n", iocb->aio_lio_opcode); > return -EINVAL; > diff --git a/include/uapi/linux/aio_abi.h b/include/uapi/linux/aio_abi.h > index 8387e0a..541d96a 100644 > --- a/include/uapi/linux/aio_abi.h > +++ b/include/uapi/linux/aio_abi.h > @@ -43,6 +43,7 @@ enum { > IOCB_CMD_NOOP = 6, > IOCB_CMD_PREADV = 7, > IOCB_CMD_PWRITEV = 8, > + IOCB_CMD_ZONE_APPEND = 9, > }; > > /* >
No need for all the #ifdefs. -- Damien Le Moal Western Digital Research
