From: sashiko-bot@kernel.org
Cc: linux-security-module@vger.kernel.org
Subject: Re: [PATCH bpf-next v1 06/11] selftests/bpf: exercise the path ancestor iterator
Date: Tue, 13 Oct 2026 16:56:31 +0000 [thread overview]
Message-ID: <sashiko-outbox-170176@kernel.org> (raw)
In-Reply-To: <20261013164800.2906577-7-utilityemal77@gmail.com>
> Walk the ancestry of a mkdir's parent directory from a sleepable LSM
> program and check that the iteration reaches the root: the temporary
> directory, its parent and / are visited, no position comes back
> flagged, and the flags read back after the loop show it ended at the
> root rather than on a failed allocation.
>
> Hold the first position across the rest of the walk and resolve its
> pathname only once the loop is done and the iterator destroyed: the
> acquired reference, not the walk's, is then all that keeps the
> position alive.
>
> Signed-off-by: Justin Suess <utilityemal77@gmail.com>
Sashiko has reviewed this patch and found no issues. It looks great!
--
Sashiko AI review · https://sashiko.dev/#/patchset/20261013164800.2906577-1-utilityemal77@gmail.com?part=6
next prev parent reply other threads:[~2026-10-13 16:56 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-13 16:47 [PATCH bpf-next v1 00/11] fs: unified VFS ancestor walk for Landlock and BPF Justin Suess
2026-10-13 16:47 ` [PATCH bpf-next v1 01/11] namei: introduce __path_walk_parent() Justin Suess
2026-10-13 16:54 ` sashiko-bot
2026-10-13 16:47 ` [PATCH bpf-next v1 02/11] namei: add vfs_walk_ancestors() Justin Suess
2026-10-13 17:00 ` sashiko-bot
2026-10-13 16:47 ` [PATCH bpf-next v1 03/11] landlock: convert ancestor walk to vfs_walk_ancestors() Justin Suess
2026-10-13 16:55 ` sashiko-bot
2026-10-13 16:47 ` [PATCH bpf-next v1 04/11] namei: expose the stepwise ancestor walk to fs/ Justin Suess
2026-10-13 16:54 ` sashiko-bot
2026-10-13 16:47 ` [PATCH bpf-next v1 05/11] bpf: add a path ancestor iterator Justin Suess
2026-10-13 17:11 ` sashiko-bot
2026-10-13 16:47 ` [PATCH bpf-next v1 06/11] selftests/bpf: exercise the " Justin Suess
2026-10-13 16:56 ` sashiko-bot [this message]
2026-10-13 16:47 ` [PATCH bpf-next v1 07/11] fs: add mnt_undo_legitimize() Justin Suess
2026-10-13 16:59 ` sashiko-bot
2026-10-13 16:47 ` [PATCH bpf-next v1 08/11] namei: add an rcu-walk mode to the ancestor walk Justin Suess
2026-10-13 17:01 ` sashiko-bot
2026-10-13 16:47 ` [PATCH bpf-next v1 09/11] bpf: support "__uninit" iterator arguments in generic kfuncs Justin Suess
2026-10-13 17:04 ` sashiko-bot
2026-10-13 16:47 ` [PATCH bpf-next v1 10/11] bpf: add a lockless path ancestor iterator Justin Suess
2026-10-13 17:03 ` sashiko-bot
2026-10-13 16:48 ` [PATCH bpf-next v1 11/11] selftests/bpf: exercise the " Justin Suess
2026-10-13 16:57 ` sashiko-bot
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