Re: [PATCH 0/4] block: Split padded I/O vectors exceeding IOV_MAX

[Stefan Hajnoczi <stefanha@redhat.com>]

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On Fri, Mar 17, 2023 at 06:50:15PM +0100, Hanna Czenczek wrote:
> RFC:
> https://lists.nongnu.org/archive/html/qemu-block/2023-03/msg00446.html
> 
> Thanks for the feedback on the RFC!  Sounds like we agree that this is
> the right way to fix the bug.
> 
> Here in v1, I’ve followed Vladimir’s suggestion to inline the
> functionality of qemu_iovec_init_extended() in block/io.c, which, I
> think (hope), also addresses much of the feedback of Eric and Stefan.
> 
> The test is unchanged, the rest is pretty much rewritten (though in
> spirit stays the same).
> 
> 
> Hanna Czenczek (4):
>   util/iov: Make qiov_slice() public
>   block: Split padded I/O vectors exceeding IOV_MAX
>   util/iov: Remove qemu_iovec_init_extended()
>   iotests/iov-padding: New test
> 
>  include/qemu/iov.h                       |   8 +-
>  block/io.c                               | 153 +++++++++++++++++++++--
>  util/iov.c                               |  89 +++----------
>  tests/qemu-iotests/tests/iov-padding     |  85 +++++++++++++
>  tests/qemu-iotests/tests/iov-padding.out |  59 +++++++++
>  5 files changed, 306 insertions(+), 88 deletions(-)
>  create mode 100755 tests/qemu-iotests/tests/iov-padding
>  create mode 100644 tests/qemu-iotests/tests/iov-padding.out

Acked-by: Stefan Hajnoczi <stefanha@redhat.com>

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