after merge fix
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@ -67,6 +67,11 @@ static int _mi_cmp_buffer(File file, const byte *buff, my_off_t filepos,
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my_bool mi_dynmap_file(MI_INFO *info, my_off_t size)
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{
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DBUG_ENTER("mi_dynmap_file");
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if (size > (my_off_t) (~((size_t) 0)) - MEMMAP_EXTRA_MARGIN)
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{
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DBUG_PRINT("warning", ("File is too large for mmap"));
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DBUG_RETURN(1);
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}
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info->s->file_map= (byte*)
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my_mmap(0, (size_t)(size + MEMMAP_EXTRA_MARGIN),
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info->s->mode==O_RDONLY ? PROT_READ :
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