[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 #17 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  52b090ceaa0a26109bed23dbef41bd2c9c349fb6 (commit)

- Log -----------------------------------------------------------------
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=52b090ceaa0a26109bed23dbef41bd2c9c349fb6

commit 52b090ceaa0a26109bed23dbef41bd2c9c349fb6
Author: Adhemerval Zanella <azanella@linux.vnet.ibm.com>
Date:   Wed Jun 25 15:14:27 2014 -0400

    PowerPC: Fix TLE for rwlock and cond vars

https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=872a452a3cfb4e4998749a71070c361f4cc3687f

commit 872a452a3cfb4e4998749a71070c361f4cc3687f
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=8371e721e0420f41713386d105fa1089241b249c

commit 8371e721e0420f41713386d105fa1089241b249c
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=831e93ca666fd7423ef79cd54a3cc53047f37e62

commit 831e93ca666fd7423ef79cd54a3cc53047f37e62
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=ac7744c948ac85edd955cfaf4c3c96170e1fefee

commit ac7744c948ac85edd955cfaf4c3c96170e1fefee
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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