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Patch series "selftests/mm: virtual_address_range: Reduce memory", v4. The selftest started failing since commite93d2521b2("x86/vdso: Split virtual clock pages into dedicated mapping") was merged. While debugging I stumbled upon some memory usage optimizations. With these test now runs on a VM with only 60MiB of memory. This patch (of 4): When mapping a larger chunk than physical memory is available with PROT_WRITE and overcommit is disabled, the mapping will fail. This will prevent the test from running on systems with less then ~1GiB of memory and triggering an inscrutinable test failure. As the mappings are never written to anyways, the flag can be removed. Link: https://lkml.kernel.org/r/20250114-virtual_address_range-tests-v4-0-6fd7269934a5@linutronix.de Link: https://lkml.kernel.org/r/20250114-virtual_address_range-tests-v4-1-6fd7269934a5@linutronix.de Fixes:4e5ce33ceb("selftests/vm: add a test for virtual address range mapping") Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de> Acked-by: David Hildenbrand <david@redhat.com> Acked-by: Dev Jain <dev.jain@arm.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Anshuman Khandual <khandual@linux.vnet.ibm.com> Cc: Shuah Khan (Samsung OSG) <shuah@kernel.org> Cc: kernel test robot <oliver.sang@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>