linux-kernel - Re: [PATCH 6/7] btrfs: Promote to unsigned long long before shifting

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Message-ID: <84f3800c-445e-6dbf-2381-56840d7bba69@toxicpanda.com>
Date:   Fri, 9 Oct 2020 10:18:27 -0400
From:   Josef Bacik <josef@...icpanda.com>
To:     "Matthew Wilcox (Oracle)" <willy@...radead.org>,
        linux-fsdevel@...r.kernel.org
Cc:     ericvh@...il.com, lucho@...kov.net, viro@...iv.linux.org.uk,
        jlayton@...nel.org, idryomov@...il.com, mark@...heh.com,
        jlbec@...lplan.org, joseph.qi@...ux.alibaba.com,
        v9fs-developer@...ts.sourceforge.net, linux-kernel@...r.kernel.org,
        ceph-devel@...r.kernel.org, ocfs2-devel@....oracle.com,
        linux-btrfs@...r.kernel.org, clm@...com, dsterba@...e.com,
        stable@...r.kernel.org
Subject: Re: [PATCH 6/7] btrfs: Promote to unsigned long long before shifting

On 10/4/20 2:04 PM, Matthew Wilcox (Oracle) wrote:
> On 32-bit systems, this shift will overflow for files larger than 4GB.
> 
> Cc: stable@...r.kernel.org
> Fixes: 53b381b3abeb ("Btrfs: RAID5 and RAID6")
> Signed-off-by: Matthew Wilcox (Oracle) <willy@...radead.org>

Reviewed-by: Josef Bacik <josef@...icpanda.com>

Thanks,

Josef