[Bug nptl/16657] Lock elision breaks pthread_mutex_destroy

["cvs-commit at gcc dot gnu.org" <sourceware-bugzilla at sourceware dot org>]

https://sourceware.org/bugzilla/show_bug.cgi?id=16657

--- Comment #26 from cvs-commit at gcc dot gnu.org <cvs-commit at gcc dot gnu.org> ---
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The branch, azanella/lockelision-ppc has been created
        at  58c786666e06b4d31f6d69ba846d2302e4f5af4c (commit)

- Log -----------------------------------------------------------------
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=58c786666e06b4d31f6d69ba846d2302e4f5af4c

commit 58c786666e06b4d31f6d69ba846d2302e4f5af4c
Author: Adhemerval Zanella <azanella@linux.vnet.ibm.com>
Date:   Wed Jun 25 15:13:46 2014 -0400

    PowerPC: Add adaptive elision to rwlocks

https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=afc0f998d1840d3239ed794cd58b771a4287eb28

commit afc0f998d1840d3239ed794cd58b771a4287eb28
Author: Adhemerval Zanella <azanella@linux.vnet.ibm.com>
Date:   Fri Mar 21 08:26:59 2014 -0400

    PowerPC: Adjusting LE mutex destroy

https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=e47e7d86ac678ee4293da4295198a7eb45ecef01

commit e47e7d86ac678ee4293da4295198a7eb45ecef01
Author: Andreas Schwab <schwab@suse.de>
Date:   Thu Mar 27 16:50:04 2014 -0400

    Skip checks in pthread_mutex_destroy when doing elision

    When doing elisison the __nusers field is not updated, thus can have an
    arbitrary value.

        [BZ #16657]
        * nptl/pthread_mutex_destroy.c (__pthread_mutex_destroy): Skip
        checks when doing elision.
        * nptl/sysdeps/unix/sysv/linux/x86/pthread_mutex_destroy.c: New
        * file.

https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=552210e08eff6b757356dfc120c05ec1417179ef

commit 552210e08eff6b757356dfc120c05ec1417179ef
Author: Adhemerval Zanella <azanella@linux.vnet.ibm.com>
Date:   Fri Dec 13 15:59:35 2013 -0500

    PowerPC: Add the low level infrastructure for pthreads lock elision

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