On Tue, 9 Jul 2002, Dave Hansen wrote:
> It isn't absoulutely a bad thing to return while you have a lock held.
> It might be hard to understand, or even crazy, but not immediately
> wrong :)
>
> // BKL protects both "a", and io port 0xF00D
> bar()
> {
> lock_kernel();
> return inb(0xF00D);
> }
>
> int a;
> foo()
> {
> a = bar();
> a--;
> unlock_kernel();
> }
But broken nonetheless, that kinda thing just looks ugly. Especially when
someone tries to call bar multiple times or consecutively or with the lock
already held or...
Zwane Mwaikambo
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This archive was generated by hypermail 2b29 : Mon Jul 15 2002 - 22:00:14 EST