From: David Hildenbrand <david@redhat.com>
To: linux-mm@kvack.org
Cc: linux-kernel@vger.kernel.org,
David Hildenbrand <david@redhat.com>,
Andrew Morton <akpm@linux-foundation.org>,
Michal Hocko <mhocko@suse.com>, Vlastimil Babka <vbabka@suse.cz>,
Dan Williams <dan.j.williams@intel.com>,
Reza Arbab <arbab@linux.vnet.ibm.com>,
Pavel Tatashin <pasha.tatashin@oracle.com>,
Thomas Gleixner <tglx@linutronix.de>
Subject: [PATCH RCFv2 5/7] mm/memory_hotplug: print only with DEBUG_VM in offline_pages()
Date: Mon, 30 Apr 2018 11:42:34 +0200 [thread overview]
Message-ID: <20180430094236.29056-6-david@redhat.com> (raw)
In-Reply-To: <20180430094236.29056-1-david@redhat.com>
Let's try to minimze the noise.
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Reza Arbab <arbab@linux.vnet.ibm.com>
Cc: Pavel Tatashin <pasha.tatashin@oracle.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: David Hildenbrand <david@redhat.com>
---
mm/memory_hotplug.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index 4c7e0efff079..d8f127754c2e 100644
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -1685,7 +1685,9 @@ 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);
@@ -1720,9 +1722,11 @@ 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);
--
2.14.3
next prev parent reply other threads:[~2018-04-30 9:42 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-04-30 9:42 [PATCH RCFv2 0/7] mm: online/offline 4MB chunks controlled by device driver David Hildenbrand
2018-04-30 9:42 ` [PATCH RCFv2 1/7] mm: introduce and use PageOffline() David Hildenbrand
2018-04-30 14:35 ` Pavel Tatashin
2018-04-30 15:17 ` David Hildenbrand
2018-04-30 15:49 ` David Hildenbrand
2018-04-30 9:42 ` [PATCH RCFv2 2/7] kdump: include PAGE_OFFLINE_MAPCOUNT_VALUE in ELF info David Hildenbrand
2018-04-30 9:42 ` [PATCH RCFv2 3/7] mm/memory_hotplug: limit offline_pages() to sizes we can actually handle David Hildenbrand
2018-04-30 9:42 ` [PATCH RCFv2 4/7] mm/memory_hotplug: allow to control onlining/offlining of memory by a driver David Hildenbrand
2018-04-30 9:42 ` David Hildenbrand [this message]
2018-04-30 9:42 ` [PATCH RCFv2 6/7] mm/memory_hotplug: teach offline_pages() to not try forever David Hildenbrand
2018-04-30 9:42 ` [PATCH RCFv2 7/7] mm/memory_hotplug: allow online/offline memory by a kernel module David Hildenbrand
2018-05-09 14:14 ` [PATCH RCFv2 0/7] mm: online/offline 4MB chunks controlled by device driver David Hildenbrand
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