linux-kernel - Re: [PATCH v2 5/7] fuse: Call vfs_get

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Message-ID: <f4161490-f7ed-78f0-bf05-96040cbb31e9@redhat.com>
Date:   Tue, 8 Jun 2021 17:40:37 +0200
From:   Max Reitz <mreitz@...hat.com>
To:     Greg Kurz <groug@...d.org>, Miklos Szeredi <miklos@...redi.hu>
Cc:     linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org,
        virtio-fs@...hat.com, Vivek Goyal <vgoyal@...hat.com>
Subject: Re: [PATCH v2 5/7] fuse: Call vfs_get_tree() for submounts

On 04.06.21 18:11, Greg Kurz wrote:
> We recently fixed an infinite loop by setting the SB_BORN flag on
> submounts along with the write barrier needed by super_cache_count().
> This is the job of vfs_get_tree() and FUSE shouldn't have to care
> about the barrier at all.
>
> Split out some code from fuse_dentry_automount() to the dedicated
> fuse_get_tree_submount() handler for submounts and call vfs_get_tree().
>
> Signed-off-by: Greg Kurz <groug@...d.org>
> ---
>   fs/fuse/dir.c   | 53 +++++--------------------------------------------
>   fs/fuse/inode.c | 36 +++++++++++++++++++++++++++++++++
>   2 files changed, 41 insertions(+), 48 deletions(-)

Reviewed-by: Max Reitz <mreitz@...hat.com>