linux-kernel - Re: [PATCH v1 2/2] romfs: address performance regression since v3.10

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Message-ID: <CAGngYiUQ_ytR83xRHFBkCOPTuSXvtav8sQrAdg4iC3Up+ncijA@mail.gmail.com>
Date:   Tue, 23 Jun 2020 13:05:11 -0400
From:   Sven Van Asbroeck <thesven73@...il.com>
To:     Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Cc:     kbuild-all@...ts.01.org, Al Viro <viro@...iv.linux.org.uk>,
        Deepa Dinamani <deepa.kernel@...il.com>,
        David Howells <dhowells@...hat.com>,
        "Darrick J. Wong" <darrick.wong@...cle.com>,
        Janos Farkas <chexum+dev@...il.com>,
        Jeff Layton <jlayton@...nel.org>
Subject: Re: [PATCH v1 2/2] romfs: address performance regression since v3.10

On Tue, Jun 23, 2020 at 12:17 PM kernel test robot <lkp@...el.com> wrote:
>
>    ld: fs/romfs/super.o: in function `romfs_largest_blocksize':
> >> fs/romfs/super.c:505: undefined reference to `__moddi3'
>
>  > 505                  if ((device_sz % blksz) == 0)

I can change this to device_sz & (blksz-1) if this patch gets
positive feedback.