From: Byungchul Park <byungchul@sk.com>
To: Matthew Wilcox <willy@infradead.org>
Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org,
kernel_team@skhynix.com, akpm@linux-foundation.org,
ying.huang@intel.com, namit@vmware.com, xhao@linux.alibaba.com,
mgorman@techsingularity.net, hughd@google.com, david@redhat.com,
peterz@infradead.org, luto@kernel.org, tglx@linutronix.de,
mingo@redhat.com, bp@alien8.de, dave.hansen@linux.intel.com
Subject: Re: [v4 2/3] mm: Defer TLB flush by keeping both src and dst folios at migration
Date: Mon, 15 Jan 2024 16:55:35 +0900 [thread overview]
Message-ID: <20240115075535.GA56305@system.software.com> (raw)
In-Reply-To: <ZUzuUf7JfhybYBgg@casper.infradead.org>
On Thu, Nov 09, 2023 at 02:36:01PM +0000, Matthew Wilcox wrote:
> On Thu, Nov 09, 2023 at 01:59:07PM +0900, Byungchul Park wrote:
> > +++ b/include/linux/page-flags.h
> > @@ -136,6 +136,7 @@ enum pageflags {
> > PG_arch_2,
> > PG_arch_3,
> > #endif
> > + PG_migrc, /* Page is under migrc's control */
> > __NR_PAGEFLAGS,
>
> Yeah; no. We're out of page flags. And CXL is insufficiently
I won't use an additional page flag any more.
Thanks.
Byungchul
next prev parent reply other threads:[~2024-01-15 7:55 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-11-09 4:59 [v4 0/3] Reduce TLB flushes under some specific conditions Byungchul Park
2023-11-09 4:59 ` [v4 1/3] mm/rmap: Recognize read-only TLB entries during batched TLB flush Byungchul Park
2023-11-09 20:26 ` kernel test robot
2023-11-09 4:59 ` [v4 2/3] mm: Defer TLB flush by keeping both src and dst folios at migration Byungchul Park
2023-11-09 14:36 ` Matthew Wilcox
2023-11-10 1:29 ` Byungchul Park
2024-01-15 7:55 ` Byungchul Park [this message]
2023-11-09 17:09 ` kernel test robot
2023-11-09 19:07 ` kernel test robot
2023-11-09 4:59 ` [v4 3/3] mm: Pause migrc mechanism at high memory pressure Byungchul Park
2023-11-09 5:20 ` [v4 0/3] Reduce TLB flushes under some specific conditions Huang, Ying
2023-11-10 1:32 ` Byungchul Park
2023-11-15 2:57 ` Byungchul Park
2023-11-09 14:26 ` Dave Hansen
2023-11-10 1:08 ` Byungchul Park
2023-11-15 6:43 ` Byungchul Park
2024-01-15 7:58 ` Byungchul Park
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