linux-kernel - Re: [PATCH 19/19] block: switch gendisk lookup to a simple xarray

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Date:   Sun, 30 Aug 2020 09:35:03 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     Christoph Hellwig <hch@....de>
Cc:     Jens Axboe <axboe@...nel.dk>,
        "Rafael J. Wysocki" <rafael@...nel.org>,
        Denis Efremov <efremov@...ux.com>,
        "David S. Miller" <davem@...emloft.net>,
        Song Liu <song@...nel.org>, Al Viro <viro@...iv.linux.org.uk>,
        linux-block@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-ide@...r.kernel.org, linux-raid@...r.kernel.org,
        linux-scsi@...r.kernel.org, linux-m68k@...ts.linux-m68k.org
Subject: Re: [PATCH 19/19] block: switch gendisk lookup to a simple xarray

On Sun, Aug 30, 2020 at 08:24:45AM +0200, Christoph Hellwig wrote:
> Now that bdev_map is only used for finding gendisks, we can use
> a simple xarray instead of the regions tracking structure for it.
> 
> Signed-off-by: Christoph Hellwig <hch@....de>
> ---
>  block/genhd.c         | 208 ++++++++----------------------------------
>  include/linux/genhd.h |   7 --
>  2 files changed, 37 insertions(+), 178 deletions(-)

Reviewed-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>