From: Christoph Hellwig <hch@infradead.org>
To: "D. Wythe" <alibuda@linux.alibaba.com>
Cc: "David S. Miller" <davem@davemloft.net>,
Andrew Morton <akpm@linux-foundation.org>,
Dust Li <dust.li@linux.alibaba.com>,
Eric Dumazet <edumazet@google.com>,
Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
Sidraya Jayagond <sidraya@linux.ibm.com>,
Uladzislau Rezki <urezki@gmail.com>,
Wenjia Zhang <wenjia@linux.ibm.com>,
Mahanta Jambigi <mjambigi@linux.ibm.com>,
Simon Horman <horms@kernel.org>,
Tony Lu <tonylu@linux.alibaba.com>,
Wen Gu <guwen@linux.alibaba.com>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org,
linux-rdma@vger.kernel.org, linux-s390@vger.kernel.org,
netdev@vger.kernel.org, oliver.yang@linux.alibaba.com
Subject: Re: [PATCH net-next 3/3] net/smc: optimize MTTE consumption for SMC-R buffers
Date: Fri, 23 Jan 2026 06:52:55 -0800 [thread overview]
Message-ID: <aXOLR9GxwuNz3Ddc@infradead.org> (raw)
In-Reply-To: <20260123082349.42663-4-alibuda@linux.alibaba.com>
On Fri, Jan 23, 2026 at 04:23:49PM +0800, D. Wythe wrote:
> +static inline int smc_buf_get_vm_page_order(struct smc_buf_desc *buf_slot)
> +{
> +#ifdef CONFIG_HAVE_ARCH_HUGE_VMALLOC
> + struct vm_struct *vm;
> +
> + vm = find_vm_area(buf_slot->cpu_addr);
> + return vm ? vm->page_order : 0;
> +#else
> + return 0;
> +#endif
You might want to encapsulate this logic in a vmalloc_order or similar
helper in vmalloc.c.
next prev parent reply other threads:[~2026-01-23 14:53 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-01-23 8:23 [PATCH net-next 0/3] net/smc: buffer allocation and registration improvements D. Wythe
2026-01-23 8:23 ` [PATCH net-next 1/3] net/smc: cap allocation order for SMC-R physically contiguous buffers D. Wythe
2026-01-23 10:54 ` Alexandra Winter
2026-01-24 9:22 ` D. Wythe
2026-01-23 8:23 ` [PATCH net-next 2/3] mm: vmalloc: export find_vm_area() D. Wythe
2026-01-23 14:44 ` Christoph Hellwig
2026-01-23 18:55 ` Uladzislau Rezki
2026-01-24 9:35 ` D. Wythe
2026-01-24 10:48 ` Uladzislau Rezki
2026-01-24 14:57 ` D. Wythe
2026-01-26 10:28 ` Uladzislau Rezki
2026-01-26 12:02 ` D. Wythe
2026-01-26 16:45 ` Uladzislau Rezki
2026-01-27 13:34 ` Leon Romanovsky
2026-01-28 3:45 ` D. Wythe
2026-01-28 11:13 ` Leon Romanovsky
2026-01-28 12:44 ` D. Wythe
2026-01-28 13:49 ` Leon Romanovsky
2026-01-29 11:03 ` D. Wythe
2026-01-29 12:22 ` Leon Romanovsky
2026-01-29 14:04 ` D. Wythe
2026-01-28 18:06 ` Jason Gunthorpe
2026-01-29 11:36 ` D. Wythe
2026-01-29 13:20 ` Jason Gunthorpe
2026-01-30 8:51 ` D. Wythe
2026-01-30 15:16 ` Jason Gunthorpe
2026-02-03 9:14 ` D. Wythe
2026-01-23 8:23 ` [PATCH net-next 3/3] net/smc: optimize MTTE consumption for SMC-R buffers D. Wythe
2026-01-23 14:52 ` Christoph Hellwig [this message]
2026-01-24 9:25 ` D. Wythe
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