From: "Adam J. Richter" <adam@yggdrasil.com>
To: maxk@qualcomm.com
Cc: linux-kernel@vger.kernel.org, rusty@rustcorp.com.au
Subject: Re: Another idea for simplifying locking in kernel/module.c
Date: Fri, 10 Jan 2003 01:38:03 -0800 [thread overview]
Message-ID: <200301100938.BAA03617@baldur.yggdrasil.com> (raw)
On Thu, 09 Jan 2003, Max Krasnyansky wrote:
>At 12:53 AM 1/7/2003 -0800, Adam J. Richter wrote:
>>I wrote:
>>> Here is a way to replace all of the specialized "stop CPU"
>>>locking code in kernel/module.c with an rw_semaphore by using
>>>down_read_trylock in try_module_get() and down_write when beginning to
>>>unload the module.
>>>
>>> The following UNTESTED patch, a net deletion of 136 lines,
>>
>> I am running that patch now on two computers. It seems to
>>be OK.
>>
>> Rusty, I'd be interested in knowing what you think of the
>>patch (likewise for other lkml readers).
>We have to be able to call try_module_get() from interrupt context.
Where? Why? Please show me one or more examples.
Adam J. Richter __ ______________ 575 Oroville Road
adam@yggdrasil.com \ / Milpitas, California 95035
+1 408 309-6081 | g g d r a s i l United States of America
"Free Software For The Rest Of Us."
next reply other threads:[~2003-01-10 9:29 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-01-10 9:38 Adam J. Richter [this message]
-- strict thread matches above, loose matches on Subject: below --
2003-01-10 12:18 Adam J. Richter
2003-01-10 11:16 Adam J. Richter
2003-01-11 3:53 ` Rusty Russell
2003-01-10 9:10 Adam J. Richter
2003-01-10 9:38 ` Andre Hedrick
2003-01-10 10:15 ` Rusty Russell
2003-01-11 14:46 ` Bill Davidsen
2003-01-10 10:11 ` Rusty Russell
2003-01-07 8:53 Adam J. Richter
2003-01-09 20:41 ` Max Krasnyansky
2003-01-07 2:19 Adam J. Richter
2003-01-08 11:46 ` Rusty Russell
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