Re: [PATCH] compatibility syscall layer (lets try again)

[Martin Schwidefsky]

> 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
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