On 09/06, Oleg Nesterov wrote:
>
> Yes, agreed. In this case I think it should be
>
> #define wait_event_freezable(wq, condition) \
> ({ \
> int __retval; \
> for (;;) { \
> __retval = wait_event_interruptible(wq, \
> (condition) || freezing(current)); \
> if (__retval || (condition)) \
> break; \
> try_to_freeze(); \
> } \
> __retval; \
> })
>
> __retval/ERESTARTSYS is only needed for kthreads which play with allow_signal(),
> probably nobody should do this.
I meant, unless the caller plays with allow_signal(), it has all rights to do
if (wait_event_freezable(...))
BUG();
This becomes correct with the code above.
Oleg.
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