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From: osalvador@techadventures.net
To: akpm@linux-foundation.org
Cc: mhocko@suse.com, dan.j.williams@intel.com, jglisse@redhat.com,
	rafael@kernel.org, david@redhat.com, yasu.isimatu@gmail.com,
	logang@deltatee.com, dave.jiang@intel.com,
	Jonathan.Cameron@huawei.com, vbabka@suse.cz, linux-mm@kvack.org,
	linux-kernel@vger.kernel.org, Oscar Salvador <osalvador@suse.de>
Subject: [PATCH v2 2/3] mm/memory_hotplug: Drop mem_blk check from unregister_mem_sect_under_nodes
Date: Mon, 13 Aug 2018 17:46:38 +0200	[thread overview]
Message-ID: <20180813154639.19454-3-osalvador@techadventures.net> (raw)
In-Reply-To: <20180813154639.19454-1-osalvador@techadventures.net>

From: Oscar Salvador <osalvador@suse.de>

Before calling to unregister_mem_sect_under_nodes(),
remove_memory_section() already checks if we got a valid
memory_block.

No need to check that again in unregister_mem_sect_under_nodes().

Signed-off-by: Oscar Salvador <osalvador@suse.de>
---
 drivers/base/node.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/drivers/base/node.c b/drivers/base/node.c
index 1ac4c36e13bb..dd3bdab230b2 100644
--- a/drivers/base/node.c
+++ b/drivers/base/node.c
@@ -455,10 +455,6 @@ int unregister_mem_sect_under_nodes(struct memory_block *mem_blk,
 	NODEMASK_ALLOC(nodemask_t, unlinked_nodes, GFP_KERNEL);
 	unsigned long pfn, sect_start_pfn, sect_end_pfn;
 
-	if (!mem_blk) {
-		NODEMASK_FREE(unlinked_nodes);
-		return -EFAULT;
-	}
 	if (!unlinked_nodes)
 		return -ENOMEM;
 	nodes_clear(*unlinked_nodes);
-- 
2.13.6


  parent reply	other threads:[~2018-08-13 15:46 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-08-13 15:46 [PATCH v2 0/3] Refactoring for remove_memory_section/unregister_mem_sect_under_nodes osalvador
2018-08-13 15:46 ` [PATCH v2 1/3] mm/memory-hotplug: Drop unused args from remove_memory_section osalvador
2018-08-14  9:29   ` David Hildenbrand
2018-08-13 15:46 ` osalvador [this message]
2018-08-14  9:30   ` [PATCH v2 2/3] mm/memory_hotplug: Drop mem_blk check from unregister_mem_sect_under_nodes David Hildenbrand
2018-08-14  9:36     ` Oscar Salvador
2018-08-14  9:44       ` David Hildenbrand
2018-08-14 10:06         ` Oscar Salvador
2018-08-14 10:09           ` David Hildenbrand
2018-08-14 12:36             ` Oscar Salvador
2018-08-13 15:46 ` [PATCH v2 3/3] mm/memory_hotplug: Refactor unregister_mem_sect_under_nodes osalvador
2018-08-14  9:39   ` David Hildenbrand
2018-08-14  9:55     ` Oscar Salvador

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