Function Ext2FreePool

Ext4Fsd/debug.c:2643–2681

}

VOID
Ext2FreePool(
    IN PVOID P,
    IN ULONG Tag
)
{
    PUCHAR  Buffer = (PUCHAR)P;
    PULONG  Data;
    ULONG   NumberOfBytes, i;
    KIRQL   Irql;

    Buffer -= 0x10;
    Data = (PULONG)(Buffer);
    NumberOfBytes = Data[0];
    if (Data[1] != NumberOfBytes + 0x20) {
        DbgBreak();
        return;
    }
    for (i=0x08; i < 0x10; i++) {
        if (Buffer[i] != 'S') {
            DbgBreak();
        }
        Buffer[i] = '-';
    }
    for (i=0; i < 0x10; i++) {
        if (Buffer[i + NumberOfBytes + 0x10] != 'E') {
            DbgBreak();
            return;
        }
        Buffer[i + NumberOfBytes + 0x10] = '-';
    }

    KeAcquireSpinLock(&Ext2MemoryLock, &Irql);
    Ext2TotalMemorySize = Ext2TotalMemorySize - NumberOfBytes;
    Ext2TotalAllocates -= 1;
    KeReleaseSpinLock(&Ext2MemoryLock, Irql);

    ExFreePoolWithTag(Buffer, Tag);
}

#else  // EXT2_DEBUG