[SCM] Hurd branch, master, updated. v0.5-567-gfb8c531

[Justus Winter]

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- Log -----------------------------------------------------------------
commit fb8c531ddeef55c8581d3882bd1b1f501d980a30
Author: Justus Winter <address@hidden>
Date:   Mon Dec 15 11:53:26 2014 +0100

    libports: avoid acquiring global lock in message dispatch
    
    * libports/interrupt-operation.c (ports_S_interrupt_operation): Update
    `cancel_threshold' using atomic operations.
    * libports/manage-multithread.c (internal_demuxer): Avoid taking the lock.
    * libports/ports.h (struct port_info): Mention that one needs atomic
    operations to access `cancel_threshold'.

-----------------------------------------------------------------------

Summary of changes:
 libports/interrupt-operation.c |   14 ++++++++++----
 libports/manage-multithread.c  |    8 +++++---
 libports/ports.h               |    2 +-
 3 files changed, 16 insertions(+), 8 deletions(-)


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