[PATCH] pthread_cond_broadcast: Fix waiters-after-spinning case [BZ #23538]

[Florian Weimer]

* Florian Weimer:

> From: Martin Kuchta <martin.kuchta@netapp.com>
>
> (cherry picked from commit 99ea93ca31795469d2a1f1570f17a5c39c2eb7e2)
>
> 2018-08-27 Martin Kuchta  <martin.kuchta@netapp.com>
> 	   Torvald Riegel  <triegel@redhat.com>
>
> 	[BZ #23538]
> 	* nptl/pthread_cond_common.c (__condvar_quiesce_and_switch_g1):
> 	Update r to include the set wake-request flag if waiters are
> 	remaining after spinning.
>
> diff --git a/NEWS b/NEWS
> index 61ac02cd69..a868a652f7 100644
> --- a/NEWS
> +++ b/NEWS
> @@ -146,6 +146,7 @@ The following bugs are resolved with this release:
>    [23236] Harden function pointers in _IO_str_fields
>    [23313] libio: Disable vtable validation in case of interposition
>    [23349] Various glibc headers no longer compatible with <linux/time.h>
> +  [23538] pthread_cond_broadcast: Fix waiters-after-spinning case
>    [23363] stdio-common/tst-printf.c has non-free license
>    [23456] Wrong index_cpu_LZCNT
>    [23459] COMMON_CPUID_INDEX_80000001 isn't populated for Intel processors

Sorry, script malfunction.  This should have gone to libc-stable as a
committed patch.