From: Anand Jain <asj@kernel.org>
To: fstests@vger.kernel.org
Cc: linux-btrfs@vger.kernel.org, linux-ext4@vger.kernel.org,
linux-xfs@vger.kernel.org
Subject: [PATCH 0/9] fstests: add test coverage for cloned filesystem ids
Date: Thu, 26 Feb 2026 22:41:41 +0800 [thread overview]
Message-ID: <cover.1772095513.git.asj@kernel.org> (raw)
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
Testing:
Requires kernel patches [1] for all tests to pass.
[1] https://lore.kernel.org/linux-btrfs/cover.1772095546.git.asj@kernel.org/
Anand Jain (9):
fstests: allow SCRATCH_DEV_POOL for non-Btrfs filesystems
fstests: add _mkfs_scratch_clone() helper
fstests: add _clone_mount_option() helper
fstests: add test for inotify isolation on cloned devices
fstests: verify fanotify isolation on cloned filesystems
fstests: verify f_fsid for cloned filesystems
fstests: verify libblkid resolution of duplicate UUIDs
fstests: verify IMA isolation on cloned filesystems
fstests: verify exportfs file handles on cloned filesystems
.gitignore | 1 +
common/config | 1 +
common/rc | 55 ++++++++++++++++++-----
src/Makefile | 2 +-
src/fanotify.c | 66 +++++++++++++++++++++++++++
tests/generic/790 | 78 ++++++++++++++++++++++++++++++++
tests/generic/790.out | 7 +++
tests/generic/791 | 86 +++++++++++++++++++++++++++++++++++
tests/generic/791.out | 7 +++
tests/generic/792 | 57 ++++++++++++++++++++++++
tests/generic/792.out | 7 +++
tests/generic/793 | 73 ++++++++++++++++++++++++++++++
tests/generic/793.out | 22 +++++++++
tests/generic/794 | 101 ++++++++++++++++++++++++++++++++++++++++++
tests/generic/794.out | 10 +++++
tests/generic/795 | 67 ++++++++++++++++++++++++++++
tests/generic/795.out | 2 +
17 files changed, 629 insertions(+), 13 deletions(-)
create mode 100644 src/fanotify.c
create mode 100644 tests/generic/790
create mode 100644 tests/generic/790.out
create mode 100644 tests/generic/791
create mode 100644 tests/generic/791.out
create mode 100644 tests/generic/792
create mode 100644 tests/generic/792.out
create mode 100644 tests/generic/793
create mode 100644 tests/generic/793.out
create mode 100644 tests/generic/794
create mode 100644 tests/generic/794.out
create mode 100644 tests/generic/795
create mode 100644 tests/generic/795.out
--
2.43.0
next reply other threads:[~2026-02-26 14:42 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-02-26 14:41 Anand Jain [this message]
2026-02-26 14:41 ` [PATCH 1/9] fstests: allow SCRATCH_DEV_POOL for non-Btrfs filesystems Anand Jain
2026-02-26 14:41 ` [PATCH 2/9] fstests: add _mkfs_scratch_clone() helper Anand Jain
2026-03-09 19:13 ` Zorro Lang
2026-03-11 2:32 ` Anand Jain
2026-03-14 17:04 ` Zorro Lang
2026-03-16 16:15 ` Christoph Hellwig
2026-03-21 12:02 ` Anand Jain
2026-02-26 14:41 ` [PATCH 3/9] fstests: add _clone_mount_option() helper Anand Jain
2026-02-26 14:41 ` [PATCH 4/9] fstests: add test for inotify isolation on cloned devices Anand Jain
2026-03-01 13:07 ` Amir Goldstein
2026-03-02 13:24 ` Anand Jain
2026-02-26 14:41 ` [PATCH 5/9] fstests: verify fanotify isolation on cloned filesystems Anand Jain
2026-03-01 13:15 ` Amir Goldstein
2026-03-02 13:30 ` Anand Jain
2026-02-26 14:41 ` [PATCH 6/9] fstests: verify f_fsid for " Anand Jain
2026-02-26 14:41 ` [PATCH 7/9] fstests: verify libblkid resolution of duplicate UUIDs Anand Jain
2026-02-26 14:41 ` [PATCH 8/9] fstests: verify IMA isolation on cloned filesystems Anand Jain
2026-02-26 14:41 ` [PATCH 9/9] fstests: verify exportfs file handles " Anand Jain
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=cover.1772095513.git.asj@kernel.org \
--to=asj@kernel.org \
--cc=fstests@vger.kernel.org \
--cc=linux-btrfs@vger.kernel.org \
--cc=linux-ext4@vger.kernel.org \
--cc=linux-xfs@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.