[6.2.0] Fix data race in prefetcher. #17744
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Individual file prefetches within a single prefetchFiles() can race against each other, so they must synchronize when writing to the DirectoryContext. Closes bazelbuild#17678. PiperOrigin-RevId: 515024483 Change-Id: Ic8097979d06ab143b4d63f5e90f871f8cbf83959
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Individual file prefetches within a single prefetchFiles() can race against each other, so they must synchronize when writing to the DirectoryContext.
Closes #17678.
PiperOrigin-RevId: 515024483
Change-Id: Ic8097979d06ab143b4d63f5e90f871f8cbf83959