Re: BUG or not? GFP_KERNEL with interrupts disabled.

From: David S. Miller (davem@redhat.com)
Date: Thu Mar 27 2003 - 14:10:12 EST


   From: Linus Torvalds <torvalds@transmeta.com>
   Date: Thu, 27 Mar 2003 11:08:26 -0800 (PST)

   So what the test SHOULD look like is this:
   
           if (gfp_mask & __GFP_WAIT) {
                   if (in_atomic() || irqs_disabled()) {
                           static int count = 0;
                           ...
                   }
           }
   
   which should catch all the cases we really care about.

Let's codify this "in_atomic() || irqs_disabled()" test into a macro
that everyone can use to test sleepability, ok?
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