[SCM] POSIX threading library branch, master, updated. 01a36d151b82f6034c9e8721a5f486ab95254d35

[Samuel Thibault]

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- Log -----------------------------------------------------------------
commit 01a36d151b82f6034c9e8721a5f486ab95254d35
Author: Samuel Thibault <address@hidden>
Date:   Sun Nov 2 15:07:29 2014 +0100

    Fix safety of pthread_barrier_wait
    
    The barrier queue uses threads' next field, so it can not actually be
    safely walked without holding the barrier lock.
    
    * sysdeps/generic/pt-barrier-wait.c (pthread_barrier_wait): Record an
    array of __pthread to wake while holding the lock, and wake them only
    after unlocking it.

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

Summary of changes:
 sysdeps/generic/pt-barrier-wait.c |   24 ++++++++++++++++--------
 1 files changed, 16 insertions(+), 8 deletions(-)


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