linux-kernel - Re: [git pull] vfs.git pile 3

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Date:   Thu, 4 Aug 2022 06:52:23 -0400
From:   Steven Rostedt <rostedt@...dmis.org>
To:     Linus Torvalds <torvalds@...ux-foundation.org>
Cc:     Matthew Wilcox <willy@...radead.org>,
        Al Viro <viro@...iv.linux.org.uk>,
        Sebastian Andrzej Siewior <bigeasy@...utronix.de>,
        Thomas Gleixner <tglx@...utronix.de>,
        linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org
Subject: Re: [git pull] vfs.git pile 3 - dcache

On Wed, 3 Aug 2022 19:16:12 -0700
Linus Torvalds <torvalds@...ux-foundation.org> wrote:

> > I wonder if raw_preempt_disable() would be another name to use?  
> 
> NO!
> 
> The point is that normal non-RT code does *not* disable preemption at
> all, because it is already disabled thanks to the earlier spinlock.
> 
> So we definitely do *not* want to call this "raw_preempt_disable()",
> because it's actually not supposed to normally disable anything at
> all. Only for RT, where the spinlock code doesn't do it.

Yeah, I'm just brainstorming ideas on what we could use to make that name a
little shorter, and I'm not coming up with much.

OK, I'm becoming colorblind with this shed.

-- Steve