@@ -1,6 +1,5 @@
// SPDX-License-Identifier: GPL-2.0
/*
- *
* A test for the patch "Allow compaction of unevictable pages".
* With this patch we should be able to allocate at least 1/4
* of RAM in huge pages. Without the patch much less is
@@ -94,8 +93,10 @@ int check_compaction(unsigned long mem_free, unsigned long hugepage_size,
snprintf(init_nr_hugepages, sizeof(init_nr_hugepages),
"%lu", initial_nr_hugepages);
- /* We want to test with 80% of available memory. Else, OOM killer comes
- in to play */
+ /*
+ * We want to test with 80% of available memory. Else, OOM killer comes
+ * in to play
+ */
mem_free = mem_free * 0.8;
fd = open("/proc/sys/vm/nr_hugepages", O_RDWR | O_NONBLOCK);
@@ -106,8 +107,10 @@ int check_compaction(unsigned long mem_free, unsigned long hugepage_size,
goto out;
}
- /* Request a large number of huge pages. The Kernel will allocate
- as much as it can */
+ /*
+ * Request a large number of huge pages. The Kernel will allocate
+ * as much as it can
+ */
if (write(fd, "100000", (6*sizeof(char))) != (6*sizeof(char))) {
ksft_print_msg("Failed to write 100000 to /proc/sys/vm/nr_hugepages: %s\n",
strerror(errno));
@@ -122,8 +125,10 @@ int check_compaction(unsigned long mem_free, unsigned long hugepage_size,
goto close_fd;
}
- /* We should have been able to request at least 1/3 rd of the memory in
- huge pages */
+ /*
+ * We should have been able to request at least 1/3 rd of the memory in
+ * huge pages
+ */
nr_hugepages_ul = strtoul(nr_hugepages, NULL, 10);
if (!nr_hugepages_ul) {
ksft_print_msg("ERROR: No memory is available as huge pages\n");
@@ -243,7 +248,8 @@ int main(int argc, char **argv)
entry->next = list;
list = entry;
- /* Write something (in this case the address of the map) to
+ /*
+ * Write something (in this case the address of the map) to
* ensure that KSM can't merge the mapped pages
*/
for (i = 0; i < MAP_SIZE; i += page_size)
Convert multi-line comments to preferred style with beginning and ending almost-blank lines. Signed-off-by: George Anthony Vernon <contact@gvernon.com> --- tools/testing/selftests/mm/compaction_test.c | 22 +++++++++++++------- 1 file changed, 14 insertions(+), 8 deletions(-)