The patch titled
Subject: selftests/vm/compaction_test: fix write to restore nr_hugepages
has been added to the -mm tree. Its filename is
selftests-vm-compaction_test-fix-write-to-restore-nr_hugepages.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/selftests-vm-compaction_test-fix-write-to-restore-nr_hugepages.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/selftests-vm-compaction_test-fix-write-to-restore-nr_hugepages.patch
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------------------------------------------------------
From: Mike Kravetz <mike.kravetz@xxxxxxxxxx>
Subject: selftests/vm/compaction_test: fix write to restore nr_hugepages
The write at the end of the test to restore nr_hugepages to its previous
value is failing. This is because it is trying to write the number of
bytes in the char array as opposed to the number of bytes in the string.
Link: http://lkml.kernel.org/r/1465331205-3284-1-git-send-email-mike.kravetz@xxxxxxxxxx
Signed-off-by: Mike Kravetz <mike.kravetz@xxxxxxxxxx>
Cc: Shuah Khan <shuahkh@xxxxxxxxxxxxxxx>
Cc: Sri Jayaramappa <sjayaram@xxxxxxxxxx>
Cc: Eric B Munson <emunson@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
tools/testing/selftests/vm/compaction_test.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff -puN tools/testing/selftests/vm/compaction_test.c~selftests-vm-compaction_test-fix-write-to-restore-nr_hugepages tools/testing/selftests/vm/compaction_test.c
--- a/tools/testing/selftests/vm/compaction_test.c~selftests-vm-compaction_test-fix-write-to-restore-nr_hugepages
+++ a/tools/testing/selftests/vm/compaction_test.c
@@ -136,7 +136,7 @@ int check_compaction(unsigned long mem_f
printf("No of huge pages allocated = %d\n",
(atoi(nr_hugepages)));
- if (write(fd, initial_nr_hugepages, sizeof(initial_nr_hugepages))
+ if (write(fd, initial_nr_hugepages, strlen(initial_nr_hugepages))
!= strlen(initial_nr_hugepages)) {
perror("Failed to write to /proc/sys/vm/nr_hugepages\n");
goto close_fd;
_
Patches currently in -mm which might be from mike.kravetz@xxxxxxxxxx are
mm-hugetlb-fix-huge-page-reserve-accounting-for-private-mappings.patch
selftests-vm-compaction_test-fix-write-to-restore-nr_hugepages.patch
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