On Wed, Feb 28, 2018 at 09:28:30AM +0530, Aneesh Kumar K.V wrote: > mmap(-1,..) is expected to search from max supported VA top down. It should find > an address above ADDR_SWITCH_HINT. Explicitly check for this. Hm. I don't think this correct. -1 means the application supports any address, not restricted to 47-bit address space. It doesn't mean the application *require* the address to be above 47-bit. At least on x86, -1 just shift upper boundary of address range where we can look for unmapped area. -- Kirill A. Shutemov -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>
