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From: Amjad Alsharafi <amjadsharafi10@gmail.com>
To: "qemu-devel@nongnu.org" <qemu-devel@nongnu.org>
Cc: "Hanna Reitz" <hreitz@redhat.com>,
	"Kevin Wolf" <kwolf@redhat.com>,
	"open list:vvfat" <qemu-block@nongnu.org>
Subject: Re: [PATCH v2 0/5] vvfat: Fix write bugs for large files and add iotests
Date: Sat, 4 May 2024 16:51:19 +0800	[thread overview]
Message-ID: <17ACC95C-375F-47FD-9633-B66BE0C8EDB9@getmailspring.com> (raw)
In-Reply-To: <cover.1714811679.git.amjadsharafi10@gmail.com>

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Explaination of the patch list:

These patches fix some bugs found when modifying files in vvfat.
First, there was a bug when writing to the cluster 2 or above of a file, it
will copy the cluster before it instead, so, when writing to cluster=2, the
content of cluster=1 will be copied into disk instead in its place.

Another issue was modifying the clusters of a file and adding new
clusters, this showed 2 issues:
- If the new cluster is not immediately after the last cluster, it will
cause issues when reading from this file in the future.
- Generally, the usage of info.file.offset was incorrect, and the
system would crash on abort() when the file is modified and a new
cluster was added.

Also, added some iotests for vvfat , covering the this fix and also
general behavior such as reading and writing to the first cluster which
would pass even before this patch.

On May 4 2024, at 4:44 pm, Amjad Alsharafi <amjadsharafi10@gmail.com> wrote:
> v2:
> Added iotests for `vvfat` driver along with a simple `fat16` module to run the tests.
>
> v1:
> https://patchew.org/QEMU/20240327201231.31046-1-amjadsharafi10@gmail.com/
> Fix the issue of writing to the middle of the file in vvfat
>
> Amjad Alsharafi (5):
> vvfat: Fix bug in writing to middle of file
> vvfat: Fix usage of `info.file.offset`
> vvfat: Fix reading files with non-continuous clusters
> iotests: Add `vvfat` tests
> iotests: Filter out `vvfat` fmt from failing tests
>
> .gitlab-ci.d/buildtest.yml | 1 +
> block/vvfat.c | 32 +-
> tests/qemu-iotests/001 | 1 +
> tests/qemu-iotests/002 | 1 +
> tests/qemu-iotests/003 | 1 +
> tests/qemu-iotests/005 | 1 +
> tests/qemu-iotests/008 | 1 +
> tests/qemu-iotests/009 | 1 +
> tests/qemu-iotests/010 | 1 +
> tests/qemu-iotests/011 | 1 +
> tests/qemu-iotests/012 | 1 +
> tests/qemu-iotests/021 | 1 +
> tests/qemu-iotests/032 | 1 +
> tests/qemu-iotests/033 | 1 +
> tests/qemu-iotests/052 | 1 +
> tests/qemu-iotests/094 | 1 +
> tests/qemu-iotests/120 | 2 +-
> tests/qemu-iotests/140 | 1 +
> tests/qemu-iotests/145 | 1 +
> tests/qemu-iotests/157 | 1 +
> tests/qemu-iotests/159 | 2 +-
> tests/qemu-iotests/170 | 2 +-
> tests/qemu-iotests/192 | 1 +
> tests/qemu-iotests/197 | 2 +-
> tests/qemu-iotests/208 | 2 +-
> tests/qemu-iotests/215 | 2 +-
> tests/qemu-iotests/236 | 2 +-
> tests/qemu-iotests/251 | 1 +
> tests/qemu-iotests/307 | 2 +-
> tests/qemu-iotests/308 | 2 +-
> tests/qemu-iotests/check | 2 +-
> tests/qemu-iotests/fat16.py | 507 ++++++++++++++++++
> tests/qemu-iotests/meson.build | 3 +-
> .../tests/export-incoming-iothread | 2 +-
> tests/qemu-iotests/tests/fuse-allow-other | 1 +
> .../tests/mirror-ready-cancel-error | 2 +-
> tests/qemu-iotests/tests/regression-vhdx-log | 1 +
> tests/qemu-iotests/tests/vvfat | 400 ++++++++++++++
> tests/qemu-iotests/tests/vvfat.out | 5 +
> 39 files changed, 967 insertions(+), 26 deletions(-)
> create mode 100644 tests/qemu-iotests/fat16.py
> create mode 100755 tests/qemu-iotests/tests/vvfat
> create mode 100755 tests/qemu-iotests/tests/vvfat.out
>
> --
> 2.44.0
>


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      parent reply	other threads:[~2024-05-04  8:52 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-05-04  8:44 [PATCH v2 0/5] vvfat: Fix write bugs for large files and add iotests Amjad Alsharafi
2024-05-04  8:44 ` [PATCH v2 1/5] vvfat: Fix bug in writing to middle of file Amjad Alsharafi
2024-05-04  8:44 ` [PATCH v2 2/5] vvfat: Fix usage of `info.file.offset` Amjad Alsharafi
2024-05-04  8:44 ` [PATCH v2 3/5] vvfat: Fix reading files with non-continuous clusters Amjad Alsharafi
2024-05-04  8:44 ` [PATCH v2 4/5] iotests: Add `vvfat` tests Amjad Alsharafi
2024-05-04  8:44 ` [PATCH v2 5/5] iotests: Filter out `vvfat` fmt from failing tests Amjad Alsharafi
2024-05-04  8:51 ` Amjad Alsharafi [this message]

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