CVSROOT:        /cvs
Module name:    src
Changes by:     [email protected]   2016/01/18 11:54:38

Modified files:
        sys/dev/pv     : xenstore.c 

Log message:
Fixup a hang while performing a read operation on XenStore

Reyk has reported an issue that turned out to be an incorrect calculation
of bytes available for reading.  This diff also places missed semaphore
releases in the xs_start and makes 'left' a size_t in xs_ring_{get,put}.

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