example(uffd): handle EAGAIN from UFFDIO_ZEROPAGE #5224
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If a remove event is pending to be read from the uffd, then all uffdio ioctls return EAGAIN. We correctly handle this for COPY, but did not for ZEROPAGE. Also handle this for zeropage to fix spurious test failures. See commit e92a7ff ("fix(example): correctly handle `remove` events in uffd exammple") for more details. Signed-off-by: Patrick Roy <roypat@amazon.co.uk>
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## main #5224 +/- ##
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+ Coverage 82.88% 82.93% +0.05%
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Files 250 250
Lines 26936 26936
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+ Hits 22325 22339 +14
+ Misses 4611 4597 -14
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Manciukic
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Changes
If a remove event is pending to be read from the uffd, then all uffdio ioctls return EAGAIN. We correctly handle this for COPY, but did not for ZEROPAGE. Also handle this for zeropage to fix spurious test failures.
See commit e92a7ff ("fix(example): correctly handle
removeevents in uffd exammple") for more details.License Acceptance
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