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Commit 2a661509 authored by Shai Barack's avatar Shai Barack
Browse files

Round up to the nearest page size when registering native memory with the VM. 

The underlying allocation is a virtual allocation, so it's given in page increments.

Flag: EXEMPT bugfix
Bug: 361329788
Change-Id: Ia3bfdd25ac7d4cd123ef3bd1b6dcc6e32085f230
parent f2767e98

core/java/android/os/SharedMemory.java

+6 −0
Original line number Diff line number Diff line
@@ -379,6 +379,12 @@ public final class SharedMemory implements Parcelable, Closeable { 
        private int mReferenceCount;



        private MemoryRegistration(int size) {

            // Round up to the nearest page size

            final int PAGE_SIZE = OsConstants._SC_PAGE_SIZE;

            final int remainder = size % PAGE_SIZE;

            if (remainder != 0) {

                size += PAGE_SIZE - remainder;

            }

            mSize = size;

            mReferenceCount = 1;

            VMRuntime.getRuntime().registerNativeAllocation(mSize);