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Message-ID: <20240601153430.19416989@kernel.org>
Date: Sat, 1 Jun 2024 15:34:30 -0700
From: Jakub Kicinski <kuba@...nel.org>
To: Ofir Gal <ofir.gal@...umez.com>
Cc: davem@...emloft.net, linux-block@...r.kernel.org,
linux-nvme@...ts.infradead.org, netdev@...r.kernel.org,
ceph-devel@...r.kernel.org, dhowells@...hat.com, edumazet@...gle.com,
pabeni@...hat.com, kbusch@...nel.org, axboe@...nel.dk, hch@....de,
sagi@...mberg.me, philipp.reisner@...bit.com, lars.ellenberg@...bit.com,
christoph.boehmwalder@...bit.com, idryomov@...il.com, xiubli@...hat.com
Subject: Re: [PATCH v2 0/4] bugfix: Introduce sendpages_ok() to check
sendpage_ok() on contiguous pages
On Thu, 30 May 2024 17:24:10 +0300 Ofir Gal wrote:
> skbuff: before sendpage_ok - i: 0. page: 0x654eccd7 (pfn: 120755)
> skbuff: before sendpage_ok - i: 1. page: 0x1666a4da (pfn: 120756)
> skbuff: before sendpage_ok - i: 2. page: 0x54f9f140 (pfn: 120757)
noob question, how do you get 3 contiguous pages, the third of which
is slab? is_slab doesn't mean what I think it does, or we got extremely
lucky with kmalloc?
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