From: Christoph Hellwig <hch@lst.de>
To: Jakub Kicinski <kuba@kernel.org>
Cc: Christoph Hellwig <hch@lst.de>, Ofir Gal <ofir.gal@volumez.com>,
davem@davemloft.net, linux-block@vger.kernel.org,
linux-nvme@lists.infradead.org, netdev@vger.kernel.org,
ceph-devel@vger.kernel.org, dhowells@redhat.com,
edumazet@google.com, pabeni@redhat.com, kbusch@kernel.org,
axboe@kernel.dk, sagi@grimberg.me, philipp.reisner@linbit.com,
lars.ellenberg@linbit.com, christoph.boehmwalder@linbit.com,
idryomov@gmail.com, xiubli@redhat.com
Subject: Re: [PATCH v2 0/4] bugfix: Introduce sendpages_ok() to check sendpage_ok() on contiguous pages
Date: Wed, 5 Jun 2024 09:27:42 +0200 [thread overview]
Message-ID: <20240605072742.GA16306@lst.de> (raw)
In-Reply-To: <20240604074224.44668dab@kernel.org>
On Tue, Jun 04, 2024 at 07:42:24AM -0700, Jakub Kicinski wrote:
> I'd guess the thinking was that if we push back the callers would
> switch the relevant allocations to be page-backed. But we can add
> a comment above the helper that says "you'd be better off using
> page frags and calling sendmsg(MSG_SPLICE_PAGES) directly".
That's just not how network block devices or file systems work, they
don't control the allocations and need to take what gets fed to them.
next prev parent reply other threads:[~2024-06-05 7:27 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-05-30 14:24 [PATCH v2 0/4] bugfix: Introduce sendpages_ok() to check sendpage_ok() on contiguous pages Ofir Gal
2024-05-30 14:24 ` [PATCH v2 1/4] net: introduce helper sendpages_ok() Ofir Gal
2024-05-31 7:32 ` Christoph Hellwig
2024-05-31 8:51 ` Sagi Grimberg
2024-06-03 12:35 ` Ofir Gal
2024-06-03 21:27 ` Sagi Grimberg
2024-06-04 4:27 ` Christoph Hellwig
2024-06-04 8:24 ` Sagi Grimberg
2024-06-04 13:01 ` Sagi Grimberg
2024-06-06 12:57 ` Ofir Gal
2024-06-06 13:08 ` Christoph Hellwig
2024-06-06 13:18 ` Ofir Gal
2024-06-06 13:52 ` Christoph Hellwig
2024-06-06 15:42 ` Ofir Gal
2024-05-30 14:24 ` [PATCH v2 2/4] nvme-tcp: use sendpages_ok() instead of sendpage_ok() Ofir Gal
2024-05-31 7:32 ` Christoph Hellwig
2024-05-30 14:24 ` [PATCH v2 3/4] drbd: " Ofir Gal
2024-06-04 14:43 ` Christoph Böhmwalder
2024-05-30 14:24 ` [PATCH v2 4/4] libceph: " Ofir Gal
2024-05-31 7:32 ` [PATCH v2 0/4] bugfix: Introduce sendpages_ok() to check sendpage_ok() on contiguous pages Christoph Hellwig
2024-06-01 22:36 ` Jakub Kicinski
2024-06-04 4:30 ` Christoph Hellwig
2024-06-04 14:42 ` Jakub Kicinski
2024-06-05 7:27 ` Christoph Hellwig [this message]
2024-06-01 22:34 ` Jakub Kicinski
2024-06-02 7:48 ` Sagi Grimberg
2024-06-03 9:07 ` Hannes Reinecke
2024-06-03 12:46 ` Ofir Gal
2024-06-03 7:24 ` Hannes Reinecke
2024-06-03 12:49 ` Ofir Gal
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