Re: [PATCH v2] fuse: remove unneeded lock which protecting update of congestion_threshold

[Miklos Szeredi]

On Sat, 7 Oct 2023 at 09:40, Kemeng Shi <shikemeng@xxxxxxxxxxxxxxx> wrote:
>
> Commit 670d21c6e17f6 ("fuse: remove reliance on bdi congestion") change how
> congestion_threshold is used and lock in
> fuse_conn_congestion_threshold_write is not needed anymore.
> 1. Access to supe_block is removed along with removing of bdi congestion.
> Then down_read(&fc->killsb) which protecting access to super_block is no
> needed.
> 2. Compare num_background and congestion_threshold without holding
> bg_lock. Then there is no need to hold bg_lock to update
> congestion_threshold.
>
> Signed-off-by: Kemeng Shi <shikemeng@xxxxxxxxxxxxxxx>

Applied, thanks.

Miklos