Re: [PATCH 0/2] Replace posix_fallocate() with falloate()

[Nir Soffer <nsoffer@redhat.com>]

On Mon, Aug 31, 2020 at 5:01 PM Nir Soffer <nirsof@gmail.com> wrote:
>
> Change preallocation=falloc to use fallocate() instead of
> posix_fallocte(), improving performance when legacy filesystem that do
> not support fallocate, and avoiding issues seen with OFD locks.
>
> More work is needed to respect cache mode when using full preallocation
> and maybe optimize buffer size.
>
> Continuing the discussion at:
> https://lists.nongnu.org/archive/html/qemu-block/2020-08/msg00947.html
>
> Nir Soffer (2):
>   block: file-posix: Extract preallocate helpers
>   block: file-posix: Replace posix_fallocate with fallocate
>
>  block/file-posix.c                     | 202 ++++++++++++++-----------
>  docs/system/qemu-block-drivers.rst.inc |  11 +-
>  docs/tools/qemu-img.rst                |  11 +-
>  qapi/block-core.json                   |   4 +-
>  4 files changed, 127 insertions(+), 101 deletions(-)

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