Mutex: fix memory leak in lockdep _register

[ketor]

Need pthread_mutexattr_destroy after pthread_mutexattr_init,
or there will be memory leak.

Signed-off-by: Ketor Meng d.ketor@gmail.com

[loic-bot]

SUCCESS: http://jenkins.ceph.dachary.org/job/ceph/5416/

• SUCCESS http://jenkins.ceph.dachary.org/job/ceph/LABELS=centos-7&&x86_64/5416/
• SUCCESS http://jenkins.ceph.dachary.org/job/ceph/LABELS=ubuntu-14.04&&x86_64/5416/

[tchaikov]

@ketor good catch! could you add a title for your commit message? something like:

Mutex: fix leak of pthread_mutexattr

will do the trick.

and do you mind creating an issue in http://tracker.ceph.com, since this issue is a critical fix. would be great if we are able to track it in the redmine. thanks =)

[ketor]

@tchaikov BUG #11762 created.

http://tracker.ceph.com/issues/11762

[tchaikov]

@ketor, and could you also connect the ticket with your commit using the commit message? you could put following line right before the "Signed-off-by" line.

Fixes: #111762

and other than this, the fix looks great.

[ketor]

@tchaikov please review again, thanks!

[loic-bot]

SUCCESS: http://jenkins.ceph.dachary.org/job/ceph/5428/

• SUCCESS http://jenkins.ceph.dachary.org/job/ceph/LABELS=centos-7&&x86_64/5428/
• SUCCESS http://jenkins.ceph.dachary.org/job/ceph/LABELS=ubuntu-14.04&&x86_64/5428/

[tchaikov]

tested at http://pulpito.ceph.redhat.com/kchai-2015-06-01_00:05:54-rados-wip-kefu-testing---basic-magna, all of the tests but 1 passed.
and the failed test passed at http://pulpito.ceph.redhat.com/kchai-2015-06-02_05:49:24-rados-wip-kefu-testing---basic-magna

$ teuthology-suite --verbose --priority 101 --suite rados --subset 0/20 --suite-branch master --machine-type magna  --distro ubuntu --email tchaikov@gmail.com --ceph wip-kefu-testing
$ teuthology-suite --filter="rados/thrash/{0-size-min-size-overrides/3-size-2-min-size.yaml 1-pg-log-overrides/short_pg_log.yaml clusters/fixed-2.yaml fs/xfs.yaml msgr-failures/fastclose.yaml thrashers/mapgap.yaml workloads/rgw_snaps.yaml}" --priority 101 --suite rados --subset 0/18 --suite-branch master --machine-type magna --distro ubuntu --email tchaikov@gmail.com --ceph wip-kefu-testing