[PATCH v1 07/10] mm/memory_hotplug: print only with DEBUG_VM in online/offline_pages()

[David Hildenbrand]

Let's try to minimze the noise.

Cc: Andrew Morton <a...@linux-foundation.org>
Cc: Michal Hocko <mho...@suse.com>
Cc: Vlastimil Babka <vba...@suse.cz>
Cc: Dan Williams <dan.j.willi...@intel.com>
Cc: Reza Arbab <ar...@linux.vnet.ibm.com>
Cc: Pavel Tatashin <pasha.tatas...@oracle.com>
Cc: Thomas Gleixner <t...@linutronix.de>
Signed-off-by: David Hildenbrand <da...@redhat.com>
---
 mm/memory_hotplug.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index 8c0b7d85252b..27f7c27f57ac 100644
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -943,9 +943,11 @@ int __ref online_pages(unsigned long pfn, unsigned long 
nr_pages, int online_typ
        ret = memory_notify(MEM_GOING_ONLINE, &arg);
        ret = notifier_to_errno(ret);
        if (ret) {
+#ifdef CONFIG_DEBUG_VM
                pr_debug("online_pages [mem %#010llx-%#010llx] failed\n",
                         (unsigned long long) pfn << PAGE_SHIFT,
                         (((unsigned long long) pfn + nr_pages) << PAGE_SHIFT) 
- 1);
+#endif
                memory_notify(MEM_CANCEL_ONLINE, &arg);
                return ret;
        }
@@ -1668,7 +1670,9 @@ static int __ref __offline_pages(unsigned long start_pfn,
        offlined_pages = check_pages_isolated(start_pfn, end_pfn);
        if (offlined_pages < 0)
                goto repeat;
+#ifdef CONFIG_DEBUG_VM
        pr_info("Offlined Pages %ld\n", offlined_pages);
+#endif
        /* Ok, all of our target is isolated.
           We cannot do rollback at this point. */
        offline_isolated_pages(start_pfn, end_pfn);
@@ -1703,9 +1707,11 @@ static int __ref __offline_pages(unsigned long start_pfn,
        return 0;
 
 failed_removal:
+#ifdef CONFIG_DEBUG_VM
        pr_debug("memory offlining [mem %#010llx-%#010llx] failed\n",
                 (unsigned long long) start_pfn << PAGE_SHIFT,
                 ((unsigned long long) end_pfn << PAGE_SHIFT) - 1);
+#endif
        memory_notify(MEM_CANCEL_OFFLINE, &arg);
        /* pushback to free area */
        undo_isolate_page_range(start_pfn, end_pfn, MIGRATE_MOVABLE);
-- 
2.17.0