From: Christoph Hellwig <hch@infradead.org>
To: Christian Brauner <brauner@kernel.org>
Cc: linux-fsdevel@vger.kernel.org,
Linus Torvalds <torvalds@linux-foundation.org>,
linux-kernel@vger.kernel.org,
Alexander Viro <viro@zeniv.linux.org.uk>,
Jens Axboe <axboe@kernel.dk>, Jan Kara <jack@suse.cz>,
Tejun Heo <tj@kernel.org>, Jann Horn <jannh@google.com>
Subject: Re: [PATCH RFC DRAFT POC 10/11] tree-wide: make all kthread path lookups to use LOOKUP_IN_INIT
Date: Tue, 3 Mar 2026 07:03:57 -0800 [thread overview]
Message-ID: <aab4XVXC-sKqFwI-@infradead.org> (raw)
In-Reply-To: <20260303-work-kthread-nullfs-v1-10-87e559b94375@kernel.org>
On Tue, Mar 03, 2026 at 02:49:21PM +0100, Christian Brauner wrote:
> In preparation to isolate all kthreads in nullfs convert all lookups
> performed from kthread context to use LOOKUP_IN_INIT. This will make
> them all perform the relevant lookup operation in init's filesystem
> state.
>
> This should be switched to individual commits for easy bisectability but
Not just for bisectability, but also to explain how we end up calling
these from thread context. I suspect in many cases by just undestanding
that we could get rid of it entirely with a bit of work.
next prev parent reply other threads:[~2026-03-03 15:03 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-03-03 13:49 [PATCH RFC DRAFT POC 00/11] fs,kthread: isolate all kthreads in nullfs Christian Brauner
2026-03-03 13:49 ` [PATCH RFC DRAFT POC 01/11] kthread: refactor __kthread_create_on_node() to take a struct argument Christian Brauner
2026-03-03 13:49 ` [PATCH RFC DRAFT POC 02/11] kthread: remove unused flags argument from kthread worker creation API Christian Brauner
2026-03-03 13:49 ` [PATCH RFC DRAFT POC 03/11] kthread: add extensible kthread_create()/kthread_run() pattern Christian Brauner
2026-03-03 13:49 ` [PATCH RFC DRAFT POC 04/11] fs: notice when init abandons fs sharing Christian Brauner
2026-03-03 13:49 ` [PATCH RFC DRAFT POC 05/11] fs: add LOOKUP_IN_INIT Christian Brauner
2026-03-03 13:49 ` [PATCH RFC DRAFT POC 06/11] fs: add file_open_init() Christian Brauner
2026-03-03 13:49 ` [PATCH RFC DRAFT POC 07/11] block: add bdev_file_open_init() Christian Brauner
2026-03-03 13:49 ` [PATCH RFC DRAFT POC 08/11] fs: allow to pass lookup flags to filename_*() Christian Brauner
2026-03-03 13:49 ` [PATCH RFC DRAFT POC 09/11] fs: add init_root() Christian Brauner
2026-03-03 13:49 ` [PATCH RFC DRAFT POC 10/11] tree-wide: make all kthread path lookups to use LOOKUP_IN_INIT Christian Brauner
2026-03-03 15:03 ` Christoph Hellwig [this message]
2026-03-03 13:49 ` [PATCH RFC DRAFT POC 11/11] fs: isolate all kthreads in nullfs Christian Brauner
2026-03-06 7:26 ` [PATCH RFC DRAFT POC 00/11] fs,kthread: " Askar Safin
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