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  1. JDK
  2. JDK-8058534

Remove HeapRegion::_orig_end

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    • gc
    • b34

    Backports

      Description

        The member _orig_end of the HeapRegion class stores the "original end" of the region that is needed to recover after making the region humongous.

        The actual value of _orig_end is always _bottom + HeapRegion::GrainWords. There is no need to waste (up to) 8 bytes of storage for this trivial constant.

        Remove the _orig_end member, and replace the getter with above calculation.

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            backported by

            Backport - A issue that is required to port a Bug or Feature into another product release. This issue type is generally associated with the main Bug/Feature to represent each individual release of the port. JDK-8083049 Remove HeapRegion::_orig_end

            • P5 - Cosmetic problem like misspelt words or misaligned text.
            • Resolved
            relates to

            Bug - A problem which impairs or prevents the functions of the product. JDK-8061449 G1: FreeRegionList_test() fails with G1 after the JDK-8058534 fix to HeapRegion::orig_end()

            • P2 - Crashes, loss of data, severe memory leak.
            • Resolved

            Bug - A problem which impairs or prevents the functions of the product. JDK-8061537 Test fails -- HeapRegion::hr_clear(): assert(_end == orig_end(),

            • P4 - Minor loss of function, or other problem where easy workaround is present.
            • Closed

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                jprovino Joseph Provino (Inactive)
                tschatzl Thomas Schatzl
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                  Updated:
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