From: Rich Felker <dalias@aerifal.cx>
Date: Thu, 17 Mar 2011 17:35:08 +0000 (-0400)
Subject: avoid function call to pthread_self in mutex unlock
X-Git-Url: http://nsz.repo.hu/git/?a=commitdiff_plain;h=18c7ea8055cf733f168d2c74d7cc8523a360f5f1;hp=18c7ea8055cf733f168d2c74d7cc8523a360f5f1;p=musl

avoid function call to pthread_self in mutex unlock

if the mutex was previously locked, we can assume pthread_self was
already called at the time of locking, and thus that the thread
pointer is initialized.
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