From: Andrew Morton <akpm@linux-foundation.org>
To: "Ricardo M. Correia" <ricardo.correia@oracle.com>
Cc: linux-mm@kvack.org, Brian Behlendorf <behlendorf1@llnl.gov>,
Andreas Dilger <andreas.dilger@oracle.com>
Subject: Re: Propagating GFP_NOFS inside __vmalloc()
Date: Thu, 11 Nov 2010 15:27:32 -0800 [thread overview]
Message-ID: <20101111152732.6c6544b3.akpm@linux-foundation.org> (raw)
In-Reply-To: <1289517594.428.153.camel@oralap>
On Fri, 12 Nov 2010 00:19:54 +0100
"Ricardo M. Correia" <ricardo.correia@oracle.com> wrote:
> On Thu, 2010-11-11 at 23:45 +0100, Ricardo M. Correia wrote:
> > On Thu, 2010-11-11 at 14:25 -0800, Andrew Morton wrote:
> > > And then we can set current->gfp_mask to GFP_ATOMIC when we take an
> > > interrupt, or take a spinlock.
>
> Also, doesn't this mean that spin_lock() would now have to save
> current->gfp_flags in the stack?
>
> So that we can restore the allocation mode when we do spin_unlock()?
If we wanted to go that far, yes. Who's up for editing every spin_lock()
callsite in the kernel?
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next prev parent reply other threads:[~2010-11-11 23:27 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-11-10 20:42 Propagating GFP_NOFS inside __vmalloc() Ricardo M. Correia
2010-11-10 21:35 ` Ricardo M. Correia
2010-11-10 22:10 ` Dave Chinner
2010-11-11 20:06 ` Andrew Morton
2010-11-11 22:02 ` Ricardo M. Correia
2010-11-11 22:25 ` Andrew Morton
2010-11-11 22:45 ` Ricardo M. Correia
2010-11-11 23:19 ` Ricardo M. Correia
2010-11-11 23:27 ` Andrew Morton [this message]
2010-11-11 23:29 ` Ricardo M. Correia
2010-11-15 17:01 ` Ricardo M. Correia
2010-11-15 21:28 ` David Rientjes
2010-11-15 22:19 ` Ricardo M. Correia
2010-11-15 22:50 ` David Rientjes
2010-11-15 23:30 ` Ricardo M. Correia
2010-11-15 23:55 ` David Rientjes
2010-11-16 22:11 ` Andrew Morton
2010-11-17 7:18 ` Andreas Dilger
2010-11-17 7:24 ` Andrew Morton
2010-11-17 7:37 ` David Rientjes
2010-11-17 9:04 ` Christoph Hellwig
2010-11-17 21:24 ` David Rientjes
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