lists.openwall.net   lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  linux-cve-announce  PHC 
Open Source and information security mailing list archives
 
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <CAOMdWSKC4B8zn6N+=5DssB_BiR6JkHBEpJr0ohKb149eJvCKMQ@mail.gmail.com>
Date: Thu, 28 Mar 2024 13:01:55 -0700
From: Allen <allen.lkml@...il.com>
To: Arnd Bergmann <arnd@...db.de>
Cc: Vinod Koul <vkoul@...nel.org>, Allen Pais <apais@...ux.microsoft.com>, 
	linux-kernel@...r.kernel.org, Tejun Heo <tj@...nel.org>, 
	Kees Cook <keescook@...omium.org>, Hector Martin <marcan@...can.st>, 
	Sven Peter <sven@...npeter.dev>, Florian Fainelli <florian.fainelli@...adcom.com>, 
	Ray Jui <rjui@...adcom.com>, Scott Branden <sbranden@...adcom.com>, 
	Paul Cercueil <paul@...pouillou.net>, Eugeniy.Paltsev@...opsys.com, 
	Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>, Viresh Kumar <vireshk@...nel.org>, 
	Frank Li <Frank.Li@....com>, Leo Li <leoyang.li@....com>, zw@...kernel.org, 
	Zhou Wang <wangzhou1@...ilicon.com>, haijie1@...wei.com, 
	Shawn Guo <shawnguo@...nel.org>, Sascha Hauer <s.hauer@...gutronix.de>, 
	Sean Wang <sean.wang@...iatek.com>, Matthias Brugger <matthias.bgg@...il.com>, 
	AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>, 
	Andreas Färber <afaerber@...e.de>, logang@...tatee.com, 
	Daniel Mack <daniel@...que.org>, Haojian Zhuang <haojian.zhuang@...il.com>, 
	Robert Jarzmik <robert.jarzmik@...e.fr>, Bjorn Andersson <andersson@...nel.org>, 
	Konrad Dybcio <konrad.dybcio@...aro.org>, Orson Zhai <orsonzhai@...il.com>, 
	Baolin Wang <baolin.wang@...ux.alibaba.com>, Chunyan Zhang <zhang.lyra@...il.com>, 
	Patrice Chotard <patrice.chotard@...s.st.com>, Linus Walleij <linus.walleij@...aro.org>, 
	Chen-Yu Tsai <wens@...e.org>, Jernej Skrabec <jernej.skrabec@...il.com>, peter.ujfalusi@...il.com, 
	"K. Y. Srinivasan" <kys@...rosoft.com>, Haiyang Zhang <haiyangz@...rosoft.com>, Wei Liu <wei.liu@...nel.org>, 
	Dexuan Cui <decui@...rosoft.com>, Jassi Brar <jassisinghbrar@...il.com>, 
	Mauro Carvalho Chehab <mchehab@...nel.org>, maintainers@...echerrydvr.com, 
	aubin.constans@...rochip.com, Ulf Hansson <ulf.hansson@...aro.org>, 
	Manuel Lauss <manuel.lauss@...il.com>, Michał Mirosław <mirq-linux@...e.qmqm.pl>, 
	"jh80.chung" <jh80.chung@...sung.com>, oakad@...oo.com, 
	Kunihiko Hayashi <hayashi.kunihiko@...ionext.com>, Masami Hiramatsu <mhiramat@...nel.org>, 
	brucechang@....com.tw, HaraldWelte@...tech.com, pierre@...man.eu, 
	Duncan Sands <duncan.sands@...e.fr>, Alan Stern <stern@...land.harvard.edu>, 
	Oliver Neukum <oneukum@...e.com>, openipmi-developer@...ts.sourceforge.net, 
	dmaengine@...r.kernel.org, asahi@...ts.linux.dev, 
	linux-arm-kernel@...ts.infradead.org, linux-rpi-kernel@...ts.infradead.org, 
	linux-mips@...r.kernel.org, imx@...ts.linux.dev, 
	linuxppc-dev@...ts.ozlabs.org, linux-mediatek@...ts.infradead.org, 
	linux-actions@...ts.infradead.org, linux-arm-msm@...r.kernel.org, 
	linux-riscv@...ts.infradead.org, linux-sunxi@...ts.linux.dev, 
	linux-tegra@...r.kernel.org, linux-hyperv@...r.kernel.org, 
	linux-rdma@...r.kernel.org, linux-media@...r.kernel.org, 
	"linux-mmc @ vger . kernel . org" <linux-mmc@...r.kernel.org>, Linux-OMAP <linux-omap@...r.kernel.org>, 
	Linux-Renesas <linux-renesas-soc@...r.kernel.org>, linux-s390@...r.kernel.org, 
	Netdev <netdev@...r.kernel.org>, linux-usb@...r.kernel.org
Subject: Re: [PATCH 2/9] dma: Convert from tasklet to BH workqueue

> >> > Since almost every driver associates the tasklet with the
> >> > dma_chan, we could go one step further and add the
> >> > work_queue structure directly into struct dma_chan,
> >> > with the wrapper operating on the dma_chan rather than
> >> > the work_queue.
> >>
> >> I think that is very great idea. having this wrapped in dma_chan would
> >> be very good way as well
> >>
> >> Am not sure if Allen is up for it :-)
> >
> >  Thanks Arnd, I know we did speak about this at LPC. I did start
> > working on using completion. I dropped it as I thought it would
> > be easier to move to workqueues.
>
> It's definitely easier to do the workqueue conversion as a first
> step, and I agree adding support for the completion right away is
> probably too much. Moving the work_struct into the dma_chan
> is probably not too hard though, if you leave your current
> approach for the cases where the tasklet is part of the
> dma_dev rather than the dma_chan.
>

 Alright, I will work on moving work_struck into the dma_chan and
leave the dma_dev as is (using bh workqueues) and post a RFC.
Once reviewed, I could move to the next step.

Thank you.

- Allen

Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ