Re: export of sys_call_table

Robert Love (rml@tech9.net)
04 Oct 2002 15:43:54 -0400


On Fri, 2002-10-04 at 15:15, Brian F. G. Bidulock wrote:

> Attached is an untested patch for LiS. AK doesn't like the
> read/write_lock. AFAIK it will work for LiS but might not work
> for AFS.

It is not so much that he does not like it but you _cannot_ sleep while
holding a spinlock. It is not just his style but common sense.

grab lock -> sleep -> new task grabs same lock -> deadlock

You need to use a semaphore here or find some other way to provide
protection without becoming atomic.

Robert Love

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