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authorDavid Hildenbrand <david@redhat.com>2020-08-07 09:25:27 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2020-08-07 21:33:28 +0300
commit0a18e60788d6a39436e8b5e91001b790043fc29c (patch)
tree7afd333b77453c7bf2b16cfde59b6eb90a2a77c0 /mm/memory_hotplug.c
parentf80b08fc44536a311a9f3182e50f318b79076425 (diff)
downloadlinux-0a18e60788d6a39436e8b5e91001b790043fc29c.tar.xz
mm: remove vm_total_pages
The global variable "vm_total_pages" is a relic from older days. There is only a single user that reads the variable - build_all_zonelists() - and the first thing it does is update it. Use a local variable in build_all_zonelists() instead and remove the global variable. Signed-off-by: David Hildenbrand <david@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Reviewed-by: Wei Yang <richard.weiyang@gmail.com> Reviewed-by: Pankaj Gupta <pankaj.gupta.linux@gmail.com> Reviewed-by: Mike Rapoport <rppt@linux.ibm.com> Acked-by: Michal Hocko <mhocko@suse.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Huang Ying <ying.huang@intel.com> Cc: Minchan Kim <minchan@kernel.org> Link: http://lkml.kernel.org/r/20200619132410.23859-2-david@redhat.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/memory_hotplug.c')
-rw-r--r--mm/memory_hotplug.c3
1 files changed, 0 insertions, 3 deletions
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index da374cd3d45b..be3c62e3fb95 100644
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -844,8 +844,6 @@ int __ref online_pages(unsigned long pfn, unsigned long nr_pages,
kswapd_run(nid);
kcompactd_run(nid);
- vm_total_pages = nr_free_pagecache_pages();
-
writeback_set_ratelimit();
memory_notify(MEM_ONLINE, &arg);
@@ -1595,7 +1593,6 @@ static int __ref __offline_pages(unsigned long start_pfn,
kcompactd_stop(node);
}
- vm_total_pages = nr_free_pagecache_pages();
writeback_set_ratelimit();
memory_notify(MEM_OFFLINE, &arg);