[Bug nptl/16657] Lock elision breaks pthread_mutex_detroy

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

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

--- Comment #11 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  9e49e8d39848648aa8805fcaa0dacddbfc23cb2f (commit)

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https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=9e49e8d39848648aa8805fcaa0dacddbfc23cb2f

commit 9e49e8d39848648aa8805fcaa0dacddbfc23cb2f
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=2eb8801af5c5437a2fc611b37ef88be190b40d54

commit 2eb8801af5c5437a2fc611b37ef88be190b40d54
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=81fae2105ca9a8384ccdf9ecc9a224c47fbce0a4

commit 81fae2105ca9a8384ccdf9ecc9a224c47fbce0a4
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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