tree 70c1d44ec8e75d2dd647369194800aca614df788
parent f472cecf7970d79292b63437a5c0174f72ca6cf2
author Zim <zezeozue@google.com> 1600264446 +0100
committer Zimuzo Ezeozue <zezeozue@google.com> 1600413699 +0000

Prevent unnecessary node invalidation

Previously, in an attempt to fix case-insensitivity bugs, we
aggressively invalidated nodes anytime we received a lookup for an
existing node. This could degrade performance unnecessarily because
whenever we readdir(2) we lookup child nodes and invalidate any
existing nodes.

Now, we only invalidate existing nodes if there has been any history
of a case insensitive match.

Bug: 168666994
Test: atest ScopedStorageHostTest#testCaseInsensitivity
Change-Id: I04af224f2e15db9be6c19c4193577d4b7156d405
Merged-In: I04af224f2e15db9be6c19c4193577d4b7156d405
Merged-In: I5f574cbb95fef80cb7a5ae01b9fce78f9046b4e3