Zoltan Menyhart wrote on Friday, March 24, 2006 7:18 AM > I wonder if "unlock_buffer()" works correctly on ia64... > > As far As I can see, nothing makes it sure that data modifications > issued inside the critical section be globally visible before the > "BH_Lock" bit gets cleared. Are you saying the memory ordering in unlock_buffer() is x86 centric that relies on arch specific write ordering? (on x86, write to memory implies a release semantics w.r.t. read proceed it). It's better to bring this up on LKML. If your concern is true, then it is a bug in the generic code that lacks smp_mb__before_clear_bit. - Ken - : send the line "unsubscribe linux-ia64" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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