Re: MM deadlock [was: Re: arca-vm-8...]

Savochkin Andrey Vladimirovich
1999-01-10T11:56:34Z

On Sat, Jan 09, 1999 at 01:50:14PM -0800, Linus Torvalds wrote:
>
>
> On Sat, 9 Jan 1999, Linus Torvalds wrote:
> >
> > The cleanest solution I can think of is actually to allow semaphores to be
> > recursive. I can do that with minimal overhead (just one extra instruction
> > in the non-contention case), so it's not too bad, and I've wanted to do it
> > for certain other things, but it's still a nasty piece of code to mess
> > around with.
> >
> > Oh, well. I don't think I have much choice.

Well, doesn't semaphore recursion mean that the write atomicity
is no more guaranteed by inode's i_sem semaphore?

Best wishes
Andrey V.
Savochkin