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    Subjectblk-settings.c integer truncation
    Hello.
    I was asking
    > Should BLK_BOUNCE_ANY be (-1UL)?

    No. It should not.

    git annotate gives for blkdev.h:
    Andi Kleen 2008-04-21 09:51:05 +0200 705)#define BLK_BOUNCE_ANY (-1ULL)
    ...

    ...
    (Martin K. Petersen 2009-05-22 17:17:51 -0400 311) unsigned long bounce_pfn;
    ...
    (Martin K. Petersen 2009-05-22 17:17:50 -0400 1020)static inline unsigned long queue_bounce_pfn(struct request_queue *q)
    (Martin K. Petersen 2009-05-22 17:17:50 -0400 1021){
    (Martin K. Petersen 2009-05-22 17:17:51 -0400 1022) return q->limits.bounce_pfn;
    (Martin K. Petersen 2009-05-22 17:17:50 -0400 1023)}
    ...

    I think, commit need to be reworked a bit.

    Sergey


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