From: "Martin Schwidefsky" <schwidefsky@de.ibm.com>
To: "David S. Miller" <davem@redhat.com>
Cc: torvalds@transmeta.com, dan@debian.org, george@mvista.com,
jim.houston@ccur.com, sfr@canb.auug.org.au,
linux-kernel@vger.kernel.org, anton@samba.org, ak@muc.de,
davidm@hpl.hp.com, ralf@gnu.org, willy@debian.org
Subject: Re: [PATCH] compatibility syscall layer (lets try again)
Date: Tue, 10 Dec 2002 09:42:06 +0100 [thread overview]
Message-ID: <OF363498D8.1AD899BC-ONC1256C8B.002F2E0F@de.ibm.com> (raw)
> Put the magic restart_block syscall at some fixed place in every
> user process, change the PC to that. Or, alternatively, put the
> restart_block syscall insn on the stack and point the PC at that.
>
> This isn't rocket science :-)
Something like that was my first though as well. I would have played
games with return addresses inside the kernel instead of user space.
The idea to have another _TIF_xxx flag seems much cleaner though and
I want the cleanest solution for this. Once this is implemented every
system call can be restarted with a different system call number. Who
knows what other uses this might have?
blue skies,
Martin
Linux/390 Design & Development, IBM Deutschland Entwicklung GmbH
Schönaicherstr. 220, D-71032 Böblingen, Telefon: 49 - (0)7031 - 16-2247
E-Mail: schwidefsky@de.ibm.com
next reply other threads:[~2002-12-10 8:38 UTC|newest]
Thread overview: 68+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-12-10 8:42 Martin Schwidefsky [this message]
-- strict thread matches above, loose matches on Subject: below --
2002-12-10 17:17 Martin Schwidefsky
2002-12-09 18:41 Martin Schwidefsky
2002-12-09 18:52 ` Linus Torvalds
2002-12-10 8:20 ` george anzinger
2002-12-09 17:56 Martin Schwidefsky
2002-12-09 18:20 ` Linus Torvalds
2002-12-10 14:40 ` Keith Owens
2002-12-09 17:16 Martin Schwidefsky
2002-12-09 17:33 ` Linus Torvalds
2002-12-09 20:18 ` David S. Miller
2002-12-09 16:58 Mikael Starvik
2002-12-09 17:35 ` Linus Torvalds
2002-12-09 18:46 ` David Mosberger
2002-12-10 0:13 ` Paul Mackerras
2002-12-10 23:11 ` george anzinger
2002-12-04 7:02 Stephen Rothwell
2002-12-04 7:28 ` Stephen Rothwell
2002-12-04 7:30 ` Stephen Rothwell
2002-12-04 7:33 ` Stephen Rothwell
2002-12-04 11:57 ` Pavel Machek
2002-12-04 16:54 ` Linus Torvalds
2002-12-04 16:54 ` David S. Miller
2002-12-04 17:05 ` Linus Torvalds
2002-12-04 19:56 ` george anzinger
2002-12-04 20:07 ` Linus Torvalds
2002-12-04 20:56 ` Daniel Jacobowitz
2002-12-04 22:09 ` David S. Miller
2002-12-04 22:31 ` george anzinger
2002-12-04 22:39 ` David S. Miller
2002-12-04 22:42 ` Linus Torvalds
2002-12-04 23:42 ` Jim Houston
2002-12-05 0:18 ` Linus Torvalds
2002-12-05 2:01 ` george anzinger
2002-12-05 2:51 ` Linus Torvalds
2002-12-05 3:10 ` Andi Kleen
2002-12-05 3:46 ` george anzinger
2002-12-05 4:11 ` Linus Torvalds
2002-12-05 7:10 ` george anzinger
2002-12-05 9:48 ` george anzinger
2002-12-05 15:24 ` Jim Houston
2002-12-05 16:35 ` george anzinger
2002-12-06 0:03 ` Richard Henderson
2002-12-05 17:03 ` Linus Torvalds
2002-12-06 9:17 ` george anzinger
2002-12-06 17:57 ` Linus Torvalds
2002-12-06 19:20 ` Linus Torvalds
2002-12-06 20:18 ` george anzinger
2002-12-06 21:12 ` Linus Torvalds
2002-12-06 21:56 ` Jim Houston
2002-12-06 22:58 ` Linus Torvalds
2002-12-07 2:25 ` george anzinger
2002-12-06 23:08 ` george anzinger
2002-12-08 20:41 ` David S. Miller
2002-12-09 6:18 ` Stephen Rothwell
2002-12-09 15:41 ` Daniel Jacobowitz
2002-12-09 16:48 ` Linus Torvalds
2002-12-09 17:27 ` David Mosberger
2002-12-09 20:22 ` David S. Miller
2002-12-09 17:49 ` Jim Houston
2002-12-09 17:57 ` Linus Torvalds
2002-12-09 23:30 ` Paul Mackerras
2002-12-10 23:07 ` george anzinger
2002-12-11 7:10 ` Daniel Jacobowitz
2002-12-11 8:11 ` george anzinger
2002-12-11 8:26 ` Daniel Jacobowitz
2002-12-10 11:08 ` Jamie Lokier
2002-12-05 2:27 ` Jim Houston
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