linux-kernel - Re: [PATCH] hfsplus: Add module parameter to enable force writes

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Date:   Fri, 2 Dec 2022 13:10:29 -0800
From:   Andrew Morton <akpm@...ux-foundation.org>
To:     Matthew Wilcox <willy@...radead.org>
Cc:     Aditya Garg <gargaditya08@...e.com>,
        "ira.weiny@...el.com" <ira.weiny@...el.com>,
        "axboe@...nel.dk" <axboe@...nel.dk>,
        "bvanassche@....org" <bvanassche@....org>,
        "keescook@...omium.org" <keescook@...omium.org>,
        "songmuchun@...edance.com" <songmuchun@...edance.com>,
        "slava@...eyko.com" <slava@...eyko.com>,
        "linux-fsdevel@...r.kernel.org" <linux-fsdevel@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Christoph Hellwig <hch@....de>
Subject: Re: [PATCH] hfsplus: Add module parameter to enable force writes

On Fri, 2 Dec 2022 21:01:44 +0000 Matthew Wilcox <willy@...radead.org> wrote:

> On Fri, Dec 02, 2022 at 12:53:44PM -0800, Andrew Morton wrote:
> > > +		if (force_journaled_rw) {
> > > +			pr_warn("write access to a journaled filesystem is not supported, but has been force enabled.\n");
> > > +		} else {
> > > +			pr_warn("write access to a journaled filesystem is not supported, use the force option at your own risk, mounting read-only.\n");
> > > +			sb->s_flags |= SB_RDONLY;
> > > +		}
> > 
> > All these super long lines are an eyesore.  How about
> > 
> > 			pr_warn("write access to a journaled filesystem is "
> > 				"not supported, but has been force enabled.\n");
> 
> Linus has asked us to not do that because it makes it hard to grep.

Yup.  But as with everything, there are tradeoffs.  These messages are
so messy to read and reading code is more common than grepping for
error messages.  Just grep the first 20-30 characters...