+ selftests-mm-fix-failure-case-when-new-remap-region-was-not-found.patch added to mm-unstable branch

+ selftests-mm-fix-failure-case-when-new-remap-region-was-not-found.patch added to mm-unstable branch

[Andrew Morton]

The patch titled
     Subject: selftests: mm: fix failure case when new remap region was not found
has been added to the -mm mm-unstable branch.  Its filename is
     selftests-mm-fix-failure-case-when-new-remap-region-was-not-found.patch

This patch will shortly appear at
     https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/selftests-mm-fix-failure-case-when-new-remap-region-was-not-found.patch

This patch will later appear in the mm-unstable branch at
    git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

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------------------------------------------------------
From: "Joel Fernandes (Google)" <joel@joelfernandes.org>
Subject: selftests: mm: fix failure case when new remap region was not found
Date: Sun, 3 Sep 2023 15:13:24 +0000

When a valid remap region could not be found, the source mapping is not
cleaned up.  Fix the goto statement such that the clean up happens.

Link: https://lkml.kernel.org/r/20230903151328.2981432-4-joel@joelfernandes.org
Signed-off-by: Joel Fernandes (Google) <joel@joelfernandes.org>
Reviewed-by: Lorenzo Stoakes <lstoakes@gmail.com>
Cc: Kalesh Singh <kaleshsingh@google.com>
Cc: "Kirill A. Shutemov" <kirill@shutemov.name>
Cc: Liam R. Howlett <Liam.Howlett@oracle.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Lokesh Gidra <lokeshgidra@google.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Paul E. McKenney <paulmck@kernel.org>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 tools/testing/selftests/mm/mremap_test.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/tools/testing/selftests/mm/mremap_test.c~selftests-mm-fix-failure-case-when-new-remap-region-was-not-found
+++ a/tools/testing/selftests/mm/mremap_test.c
@@ -316,7 +316,7 @@ static long long remap_region(struct con
 		if (addr + c.dest_alignment < addr) {
 			ksft_print_msg("Couldn't find a valid region to remap to\n");
 			ret = -1;
-			goto out;
+			goto clean_up_src;
 		}
 		addr += c.dest_alignment;
 	}
_

Patches currently in -mm which might be from joel@joelfernandes.org are

mm-vmalloc-add-a-safer-version-of-find_vm_area-for-debug.patch
mm-mremap-optimize-the-start-addresses-in-move_page_tables.patch
mm-mremap-allow-moves-within-the-same-vma-for-stack-moves.patch
selftests-mm-fix-failure-case-when-new-remap-region-was-not-found.patch
selftests-mm-add-a-test-for-mutually-aligned-moves-pmd-size.patch
selftests-mm-add-a-test-for-remapping-to-area-immediately-after-existing-mapping.patch
selftests-mm-add-a-test-for-remapping-within-a-range.patch
selftests-mm-add-a-test-for-moving-from-an-offset-from-start-of-mapping.patch