[Qemu-devel] [PATCH 1.1 0/6] block: drop useless checks for NULL

[Paolo Bonzini <pbonzini@redhat.com>]

After the coroutinization of the block layer, immediate failures
of an AIO operation will still return an AIOCB and only report
failure with a bottom half.  This lets us remove a lot of dead
NULL checks (patches 1-5).

Patch 6 is on a similar theme, but a bit different.

Most "added" lines are actually just reindented.

Paolo Bonzini (6):
  block: bdrv_aio_* do not return NULL
  block: simplify failure handling for bdrv_aio_multiwrite
  block: qemu_aio_get does not return NULL
  dma: the passed io_func does not return NULL
  block: dma_bdrv_* does not return NULL
  block: avoid useless checks on acb->bh

 block-migration.c  |   13 ----------
 block.c            |   56 +++-----------------------------------------
 block/blkverify.c  |   24 ++++++------------
 block/curl.c       |    4 ---
 block/qed-table.c  |   22 +++++-----------
 block/qed.c        |   60 ++++++++++++----------------------------------
 block/rbd.c        |    3 --
 block/vdi.c        |   66 ++++++++++++++-------------------------------------
 dma-helpers.c      |    4 +--
 hw/ide/atapi.c     |    8 +-----
 hw/ide/core.c      |   13 +---------
 hw/ide/macio.c     |   11 +--------
 hw/scsi-disk.c     |    9 -------
 hw/scsi-generic.c  |    4 ---
 hw/virtio-blk.c    |   19 +++-----------
 linux-aio.c        |    2 -
 posix-aio-compat.c |    4 ---
 qemu-io.c          |   39 ++++++------------------------
 trace-events       |    2 -
 19 files changed, 69 insertions(+), 294 deletions(-)

-- 
1.7.7.1