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From: Amir Goldstein <amir73il@gmail.com>
To: Eryu Guan <guaneryu@gmail.com>
Cc: Icenowy Zheng <icenowy@aosc.io>,
	Chengguang Xu <cgxu519@mykernel.net>,
	Xiao Yang <yangx.jy@cn.fujitsu.com>,
	Miklos Szeredi <miklos@szeredi.hu>,
	linux-unionfs@vger.kernel.org, fstests@vger.kernel.org
Subject: [PATCH 0/4] Tests for overlayfs immutable/append-only files
Date: Sat, 16 Jan 2021 18:56:15 +0200	[thread overview]
Message-ID: <20210116165619.494265-1-amir73il@gmail.com> (raw)

Eryu,

Overlayfs never had full support for immutable/append-only files.
Whatever works is covered by generic/079 and overlay/030 tests.
Both tests cover only upper files and directories.
generic/079 is notrun on kernel < 5.10 and passes on >= 5.10.

This series improves the t_immutable test program and adds a new test
to cover lower files and directories - the test fails on upstream kernel.
Fixing this requires some VFS API changes that Miklos has proposed [1].

The new test covers two reported bug, one of them is a deadlock.
The deadlock trigger is commented out until we have a fix upstream.

Thanks,
Amir. 

[1] https://lore.kernel.org/linux-unionfs/20201123141207.GC327006@miu.piliscsaba.redhat.com/

Amir Goldstein (4):
  overlay/030: Update comment w.r.t upstream kernel
  src/t_immutable: factor out some helpers
  src/t_immutable: Allow setting flags on existing files
  overlay: Test lost immutable/append-only flags on copy-up

 src/t_immutable.c     | 241 +++++++++++++++++++++---------------------
 tests/overlay/030     |   7 +-
 tests/overlay/075     |  97 +++++++++++++++++
 tests/overlay/075.out |  11 ++
 tests/overlay/group   |   1 +
 5 files changed, 237 insertions(+), 120 deletions(-)
 create mode 100755 tests/overlay/075
 create mode 100644 tests/overlay/075.out

-- 
2.25.1


             reply	other threads:[~2021-01-16 17:09 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-01-16 16:56 Amir Goldstein [this message]
2021-01-16 16:56 ` [PATCH 1/4] overlay/030: Update comment w.r.t upstream kernel Amir Goldstein
2021-01-16 16:56 ` [PATCH 2/4] src/t_immutable: factor out some helpers Amir Goldstein
2021-01-24 15:09   ` Eryu Guan
2021-01-24 15:29     ` Amir Goldstein
2021-01-25 12:35       ` Eryu Guan
2021-01-16 16:56 ` [PATCH 3/4] src/t_immutable: Allow setting flags on existing files Amir Goldstein
2021-01-24 15:14   ` Eryu Guan
2021-01-24 15:32     ` Amir Goldstein
2021-01-25 12:46       ` Eryu Guan
2021-01-25 13:17         ` Amir Goldstein
2021-01-16 16:56 ` [PATCH 4/4] overlay: Test lost immutable/append-only flags on copy-up Amir Goldstein
2021-01-25 13:24   ` Amir Goldstein
2021-01-26  8:47     ` Miklos Szeredi
2021-01-27  2:57     ` Eryu Guan
2021-01-28  6:45       ` Amir Goldstein

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