[review] dlsym: Do not determine caller link map if not needed

[Szabolcs Nagy (Code Review)]

Szabolcs Nagy has posted comments on this change.

Change URL: https://gnutoolchain-gerrit.osci.io/r/c/glibc/+/528
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Patch Set 1: Code-Review+1

the optimization makes sense to me, and the code looks correct.


-- 
Gerrit-Project: glibc
Gerrit-Branch: master
Gerrit-Change-Id: Ide5d9e2cc7ac25a0ffae8fb4c26def0c898efa29
Gerrit-Change-Number: 528
Gerrit-PatchSet: 1
Gerrit-Owner: Florian Weimer <fweimer@redhat.com>
Gerrit-Reviewer: Szabolcs Nagy <szabolcs.nagy@arm.com>
Gerrit-Comment-Date: Fri, 15 Nov 2019 12:14:05 +0000
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Gerrit-MessageType: comment