linux-ext4 - [PATCHSET v6 5/8] fuse: allow servers to specify root node id

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Message-ID: <176169811231.1426070.12996939158894110793.stgit@frogsfrogsfrogs>
Date: Tue, 28 Oct 2025 17:38:57 -0700
From: "Darrick J. Wong" <djwong@...nel.org>
To: djwong@...nel.org, miklos@...redi.hu
Cc: joannelkoong@...il.com, bernd@...ernd.com, neal@...pa.dev,
 linux-ext4@...r.kernel.org, linux-fsdevel@...r.kernel.org
Subject: [PATCHSET v6 5/8] fuse: allow servers to specify root node id

Hi all,

This series grants fuse servers full control over the entire node id
address space by allowing them to specify the nodeid of the root
directory.  With this new feature, fuse4fs will not have to translate
node ids.

If you're going to start using this code, I strongly recommend pulling
from my git trees, which are linked below.

This has been running on the djcloud for months with no problems.  Enjoy!
Comments and questions are, as always, welcome.

--D

kernel git tree:
https://git.kernel.org/cgit/linux/kernel/git/djwong/xfs-linux.git/log/?h=fuse-root-nodeid
---
Commits in this patchset:
 * fuse: make the root nodeid dynamic
 * fuse_trace: make the root nodeid dynamic
 * fuse: allow setting of root nodeid
---
 fs/fuse/fuse_i.h     |    9 +++++++--
 fs/fuse/fuse_trace.h |    6 ++++--
 fs/fuse/dir.c        |   10 ++++++----
 fs/fuse/inode.c      |   22 ++++++++++++++++++----
 fs/fuse/readdir.c    |   10 +++++-----
 5 files changed, 40 insertions(+), 17 deletions(-)