[PATCH] pthread: fix the stale TSDs when deleting a key

[Pino Toscano]

Hi,

as I found few months ago[1], when calling pthread_key_delete() all its
values in threads are not removed; this, plus the the fact that deleted
keys can be reused in pthread_key_create(), causes that in some
occasions (i.e. when a new key is actually a reused one) there are the
old thread specific data still available in threads which previously set
some using the key prior of being deleted and reused again.

Attached there is a patch fixing this behaviour by cleaning up all the
values of the key being deleted. It includes also a small test case.

[1] 
http://www.gnu.org/software/hurd/open_issues/libpthread_pthread_key_create_reuse.html

-- 
Pino Toscano

0001-Remove-all-the-values-when-deleting-a-key.patch
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