Re: [PATCH 09/52] put_mnt_ns(): use guards

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To: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
Subject: Re: [PATCH 09/52] put_mnt_ns(): use guards
From: Christian Brauner <brauner@xxxxxxxxxx>
Date: Mon, 25 Aug 2025 14:37:28 +0200
Cc: linux-fsdevel@xxxxxxxxxxxxxxx, jack@xxxxxxx, torvalds@xxxxxxxxxxxxxxxxxxxx
In-reply-to: <20250825044355.1541941-9-viro@zeniv.linux.org.uk>

On Mon, Aug 25, 2025 at 05:43:12AM +0100, Al Viro wrote:
> clean fit; guards can't be weaker due to umount_tree() call.
> Setting emptied_ns requires namespace_excl, but not anything
> mount_lock-related.
> 
> Signed-off-by: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
> ---

Reviewed-by: Christian Brauner <brauner@xxxxxxxxxx>

References:
- [PATCHED][RFC][CFT] mount-related stuff
  - From: Al Viro
- [PATCH 01/52] fs/namespace.c: fix the namespace_sem guard mess
  - From: Al Viro
- [PATCH 09/52] put_mnt_ns(): use guards
  - From: Al Viro

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