[to-be-updated] selftests-mm-virtual_address_range-fix-error-when-commitlimit-1gib.patch removed from -mm tree

[to-be-updated] selftests-mm-virtual_address_range-fix-error-when-commitlimit-1gib.patch removed from -mm tree

[Andrew Morton]

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The quilt patch titled
     Subject: selftests/mm: virtual_address_range: fix error when CommitLimit < 1GiB
has been removed from the -mm tree.  Its filename was
     selftests-mm-virtual_address_range-fix-error-when-commitlimit-1gib.patch

This patch was dropped because an updated version will be issued

------------------------------------------------------
From: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Subject: selftests/mm: virtual_address_range: fix error when CommitLimit < 1GiB
Date: Tue, 07 Jan 2025 16:14:45 +0100

If not enough physical memory is available the kernel may fail mmap(); see
__vm_enough_memory() and vm_commit_limit().  In that case the logic in
validate_complete_va_space() does not make sense and will even incorrectly
fail.  Instead skip the test if no mmap() succeeded.

Link: https://lkml.kernel.org/r/20250107-virtual_address_range-tests-v1-1-3834a2fb47fe@linutronix.de
Fixes: 010409649885 ("selftests/mm: confirm VA exhaustion without reliance on correctness of mmap()")
Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Cc: <stable@vger.kernel.org>
Cc: Dev Jain <dev.jain@arm.com>
Cc: kernel test robot <oliver.sang@intel.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 tools/testing/selftests/mm/virtual_address_range.c |    6 ++++++
 1 file changed, 6 insertions(+)

--- a/tools/testing/selftests/mm/virtual_address_range.c~selftests-mm-virtual_address_range-fix-error-when-commitlimit-1gib
+++ a/tools/testing/selftests/mm/virtual_address_range.c
@@ -178,6 +178,12 @@ int main(int argc, char *argv[])
 		validate_addr(ptr[i], 0);
 	}
 	lchunks = i;
+
+	if (!lchunks) {
+		ksft_test_result_skip("Not enough memory for a single chunk\n");
+		ksft_finished();
+	}
+
 	hptr = (char **) calloc(NR_CHUNKS_HIGH, sizeof(char *));
 	if (hptr == NULL) {
 		ksft_test_result_skip("Memory constraint not fulfilled\n");
_

Patches currently in -mm which might be from thomas.weissschuh@linutronix.de are

selftests-mm-virtual_address_range-avoid-reading-vvar-mappings.patch