From: Randolph Chung <randolph@tausq.org>
To: Carlos O'Donell <carlos@baldric.uwo.ca>
Cc: parisc-linux@lists.parisc-linux.org
Subject: Re: [parisc-linux] 2.6.10-rc1-pa11 profile data
Date: Thu, 11 Nov 2004 09:42:58 -0800 [thread overview]
Message-ID: <20041111174258.GT15714@tausq.org> (raw)
In-Reply-To: <20041111173901.GX2639@baldric.uwo.ca>
> I have been stewing over the following:
>
> Leave the existing syscall save everything code in place.
>
> Create a branch infront of the syscall save everything code that
> branches on the value of "enable_fast_syscall"
eh? nononono. we should *always* be able to only preserve callee-saved
registers. From the application point of view, when they call e.g.
read(), it is a function call. The app should not expect any
caller-saved registers to be preserved across the function/system call.
randolph
--
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/
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next prev parent reply other threads:[~2004-11-11 17:42 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-11-11 7:54 [parisc-linux] 2.6.10-rc1-pa11 profile data Grant Grundler
2004-11-11 8:11 ` Randolph Chung
2004-11-11 17:39 ` Carlos O'Donell
2004-11-11 17:42 ` Randolph Chung [this message]
2004-11-11 17:50 ` Matthew Wilcox
2004-11-11 17:59 ` Randolph Chung
2004-11-11 18:36 ` Grant Grundler
2004-11-11 18:23 ` Joel Soete
2004-11-11 18:51 ` Randolph Chung
2004-11-26 16:59 ` flush_kernel_[di]cache_page question? [WAS: " Joel Soete
2004-11-26 17:13 ` Randolph Chung
2004-11-26 19:02 ` Grant Grundler
2004-11-28 21:01 ` [id]cache meaning? [Was: [parisc-linux] 2.6.10-rc1-pa11 profile data] Joel Soete
2004-11-28 21:13 ` Matthew Wilcox
2004-11-29 1:14 ` Michael S. Zick
2004-11-29 2:00 ` Matthew Wilcox
2004-12-01 17:44 ` More questions " Joel Soete
2004-12-01 17:56 ` Matthew Wilcox
2004-12-01 18:33 ` Joel Soete
2004-12-03 10:24 ` Joel Soete
2004-12-03 15:41 ` Randolph Chung
2004-12-07 14:42 ` Joel Soete
2004-12-03 15:00 ` *lcul and memory granularity question[Was: " Joel Soete
2004-12-03 15:13 ` Matthew Wilcox
2004-11-12 5:29 ` [parisc-linux] 2.6.10-rc1-pa11 profile data Grant Grundler
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