Linux EXT4 FS development
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From: Anand Jain <anajain.sg@gmail.com>
To: Christoph Hellwig <hch@infradead.org>, Anand Jain <asj@kernel.org>
Cc: fstests@vger.kernel.org, linux-btrfs@vger.kernel.org,
	linux-ext4@vger.kernel.org, linux-xfs@vger.kernel.org,
	linux-f2fs@vger.kernel.org, amir73il@gmail.com, zlang@redhat.com
Subject: Re: [PATCH v4 0/9] fstests: add test coverage for cloned filesystem ids
Date: Mon, 18 May 2026 22:27:35 +0800	[thread overview]
Message-ID: <e4fcacb0-ec95-4289-a647-8e85bf432a2a@gmail.com> (raw)
In-Reply-To: <agK8gc2niqpTuHHt@infradead.org>



On 12/5/26 13:37, Christoph Hellwig wrote:
> This is missing a real cover letter saying what this series is trying
> to archive.

I should have copied from v1. See below [1]

SCRATCH_DEV_POOL support for non-btrfs was dropped in v2.
Instead, using the newly added helper  _loop_image_create_clone().

[1]
https://lore.kernel.org/fstests/cover.1772095513.git.asj@kernel.org/
-----
This series adds fstests infrastructure and test cases to verify correct
filesystem identity behaviour when a filesystem is cloned (e.g. via
block-level copy), covering inotify, fanotify, f_fsid, libblkid, IMA,
and exportfs file handles.

  - SCRATCH_DEV_POOL support extended to non-Btrfs filesystems
  - _mkfs_scratch_sized_clone() helper to create a cloned filesystem
  - _clone_mount_option() helper to apply per-filesystem clone mount options

New tests verify:
  - inotify and fanotify events are isolated between cloned filesystems
  - f_fsid is unique across cloned filesystem instances
  - libblkid correctly resolves duplicate UUIDs to distinct devices
  - IMA distinct identity for each cloned filesystem
  - exportfs file handles resolve correctly on cloned filesystems
-----


      reply	other threads:[~2026-05-18 14:27 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-04-28  6:42 [PATCH v4 0/9] fstests: add test coverage for cloned filesystem ids Anand Jain
2026-04-28  6:42 ` [PATCH v4 1/9] fstests: add _loop_image_create_clone() helper Anand Jain
2026-04-28  6:42 ` [PATCH v4 2/9] fstests: add _clone_mount_option() helper Anand Jain
2026-04-28  6:42 ` [PATCH v4 3/9] fstests: add test for inotify isolation on cloned devices Anand Jain
2026-04-28  6:42 ` [PATCH v4 4/9] fstests: verify fanotify isolation on cloned filesystems Anand Jain
2026-05-12  5:38   ` Christoph Hellwig
2026-05-18 14:43     ` Anand Jain
2026-04-28  6:42 ` [PATCH v4 5/9] fstests: verify f_fsid for " Anand Jain
2026-04-28  6:42 ` [PATCH v4 6/9] fstests: verify libblkid resolution of duplicate UUIDs Anand Jain
2026-04-28  6:42 ` [PATCH v4 7/9] fstests: verify IMA isolation on cloned filesystems Anand Jain
2026-04-28  6:42 ` [PATCH v4 8/9] fstests: verify exportfs file handles " Anand Jain
2026-04-28  6:42 ` [PATCH v4 9/9] fstests: btrfs: test UUID consistency for clones with metadata_uuid Anand Jain
2026-05-12  5:40   ` Christoph Hellwig
2026-05-18 14:44     ` Anand Jain
2026-05-12  5:37 ` [PATCH v4 0/9] fstests: add test coverage for cloned filesystem ids Christoph Hellwig
2026-05-18 14:27   ` Anand Jain [this message]

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