+ kselftest-mm-clarify-errors-for-pipe.patch added to mm-new branch

+ kselftest-mm-clarify-errors-for-pipe.patch added to mm-new branch

[Andrew Morton]

The patch titled
     Subject: kselftest/mm: clarify errors for pipe()
has been added to the -mm mm-new branch.  Its filename is
     kselftest-mm-clarify-errors-for-pipe.patch

This patch will shortly appear at
     https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/kselftest-mm-clarify-errors-for-pipe.patch

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

Note, mm-new is a provisional staging ground for work-in-progress
patches, and acceptance into mm-new is a notification for others take
notice and to finish up reviews.  Please do not hesitate to respond to
review feedback and post updated versions to replace or incrementally
fixup patches in mm-new.

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*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***

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branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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------------------------------------------------------
From: Mark Brown <broonie@kernel.org>
Subject: kselftest/mm: clarify errors for pipe()
Date: Tue, 10 Jun 2025 15:13:54 +0100

Patch series "selftests/mm: Tweaks to the cow test".

A collection of non-functional updates from David Hildenbrand's review.


This patch (of 4):

Specify that errors reported from pipe() failures are the result of
failures.

Link: https://lkml.kernel.org/r/20250610-selftest-mm-cow-tweaks-v1-0-43cd7457500f@kernel.org
Link: https://lkml.kernel.org/r/20250610-selftest-mm-cow-tweaks-v1-1-43cd7457500f@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Suggested-by: David Hildenbrand <david@redhat.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 tools/testing/selftests/mm/cow.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/tools/testing/selftests/mm/cow.c~kselftest-mm-clarify-errors-for-pipe
+++ a/tools/testing/selftests/mm/cow.c
@@ -113,11 +113,11 @@ struct comm_pipes {
 static int setup_comm_pipes(struct comm_pipes *comm_pipes)
 {
 	if (pipe(comm_pipes->child_ready) < 0) {
-		ksft_perror("pipe()");
+		ksft_perror("pipe() failed");
 		return -errno;
 	}
 	if (pipe(comm_pipes->parent_ready) < 0) {
-		ksft_perror("pipe()");
+		ksft_perror("pipe() failed");
 		close(comm_pipes->child_ready[0]);
 		close(comm_pipes->child_ready[1]);
 		return -errno;
_

Patches currently in -mm which might be from broonie@kernel.org are

selftests-mm-skip-failed-memfd-setups-in-gup_longterm.patch
kselftest-mm-clarify-errors-for-pipe.patch
selftests-mm-convert-some-cow-error-reports-to-ksft_perror.patch
selftests-mm-dont-compare-return-values-to-in-cow.patch
selftests-mm-add-messages-about-test-errors-to-the-cow-tests.patch