On 6/7/16, 4:26 PM, "Mike Kravetz" <mike.kravetz@xxxxxxxxxx> wrote:
>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.
>
>Signed-off-by: Mike Kravetz <mike.kravetz@xxxxxxxxxx>
>---
> tools/testing/selftests/vm/compaction_test.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
>diff --git a/tools/testing/selftests/vm/compaction_test.c b/tools/testing/selftests/vm/compaction_test.c
>index 932ff57..00c4f65 100644
>--- a/tools/testing/selftests/vm/compaction_test.c
>+++ b/tools/testing/selftests/vm/compaction_test.c
>@@ -136,7 +136,7 @@ int check_compaction(unsigned long mem_free, unsigned int hugepage_size)
> 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;
>--
>2.4.11
>
Looks good, thanks!
-Sri Jayaramappa
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