From: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
To: Matthew Wilcox <willy@infradead.org>
Cc: Borislav Petkov <bp@alien8.de>, Andy Lutomirski <luto@kernel.org>,
Dave Hansen <dave.hansen@intel.com>,
Sean Christopherson <seanjc@google.com>,
Andrew Morton <akpm@linux-foundation.org>,
Joerg Roedel <jroedel@suse.de>, Ard Biesheuvel <ardb@kernel.org>,
Andi Kleen <ak@linux.intel.com>,
Kuppuswamy Sathyanarayanan
<sathyanarayanan.kuppuswamy@linux.intel.com>,
David Rientjes <rientjes@google.com>,
Vlastimil Babka <vbabka@suse.cz>,
Tom Lendacky <thomas.lendacky@amd.com>,
Thomas Gleixner <tglx@linutronix.de>,
Peter Zijlstra <peterz@infradead.org>,
Paolo Bonzini <pbonzini@redhat.com>,
Ingo Molnar <mingo@redhat.com>,
Dario Faggioli <dfaggioli@suse.com>,
Mike Rapoport <rppt@kernel.org>,
David Hildenbrand <david@redhat.com>,
Mel Gorman <mgorman@techsingularity.net>,
marcelo.cerri@canonical.com, tim.gardner@canonical.com,
philip.cox@canonical.com, aarcange@redhat.com, peterx@redhat.com,
x86@kernel.org, linux-mm@kvack.org, linux-coco@lists.linux.dev,
linux-efi@vger.kernel.org, linux-kernel@vger.kernel.org,
stable@kernel.org, Nikolay Borisov <nik.borisov@suse.com>
Subject: Re: [PATCHv2] efi/unaccepted: Fix soft lockups caused by parallel memory acceptance
Date: Tue, 17 Oct 2023 00:39:32 +0300 [thread overview]
Message-ID: <20231016213932.6cscnn6tsnzsnvmf@box.shutemov.name> (raw)
In-Reply-To: <ZS15HZqK4hu5NjSh@casper.infradead.org>
On Mon, Oct 16, 2023 at 06:55:41PM +0100, Matthew Wilcox wrote:
> On Mon, Oct 16, 2023 at 07:31:22PM +0300, Kirill A. Shutemov wrote:
> > v2:
> > - Fix deadlock (Vlastimil);
> > - Fix comments (Vlastimil);
> > - s/cond_resched()/cpu_relax()/ -- cond_resched() cannot be called
> > from atomic context;
>
> Isn't there an implicit cpu_relax() while we're spinning? Does this
> really accomplish anything?
You are right. It is useless. I will drop it in v3.
--
Kiryl Shutsemau / Kirill A. Shutemov
next prev parent reply other threads:[~2023-10-16 21:39 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-10-16 16:31 Kirill A. Shutemov
2023-10-16 16:41 ` Vlastimil Babka
2023-10-16 17:55 ` Matthew Wilcox
2023-10-16 21:39 ` Kirill A. Shutemov [this message]
2023-10-17 7:42 ` Ard Biesheuvel
2023-10-17 9:44 ` Kirill A. Shutemov
2023-10-17 9:57 ` Ard Biesheuvel
2023-10-17 10:17 ` Peter Zijlstra
2023-10-17 15:36 ` Ard Biesheuvel
2023-10-16 20:54 ` Michael Roth
2023-10-17 7:02 ` Vlastimil Babka
2023-11-01 0:45 ` Michael Roth
2023-11-02 13:56 ` Kirill A. Shutemov
2023-11-03 0:01 ` Michael Roth
2023-10-18 18:54 Jianxiong Gao
2023-10-18 18:56 Jianxiong Gao
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