diff options
| author | Daniel Kiper <[email protected]> | 2011-04-14 15:21:53 -0700 |
|---|---|---|
| committer | Linus Torvalds <[email protected]> | 2011-04-14 16:06:54 -0700 |
| commit | 584208e6b4103d2cfb08a7889c9fa3540826e0d5 (patch) | |
| tree | 0333330823c7bc82d73ea1506a5f35555bd577ef | |
| parent | 67954fe95705a8ff80335964bd7e621d13fbc499 (diff) | |
mm: optimize pfn calculation in online_page()
If CONFIG_FLATMEM is enabled pfn is calculated in online_page() more than
once. It is possible to optimize that and use value established at
beginning of that function.
Signed-off-by: Daniel Kiper <[email protected]>
Acked-by: Dave Hansen <[email protected]>
Cc: KAMEZAWA Hiroyuki <[email protected]>
Cc: Wu Fengguang <[email protected]>
Cc: Mel Gorman <[email protected]>
Cc: Christoph Lameter <[email protected]>
Acked-by: David Rientjes <[email protected]>
Reviewed-by: Jesper Juhl <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
| -rw-r--r-- | mm/memory_hotplug.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c index a2acaf820fe5..9ca1d604f7cd 100644 --- a/mm/memory_hotplug.c +++ b/mm/memory_hotplug.c @@ -375,7 +375,7 @@ void online_page(struct page *page) #endif #ifdef CONFIG_FLATMEM - max_mapnr = max(page_to_pfn(page), max_mapnr); + max_mapnr = max(pfn, max_mapnr); #endif ClearPageReserved(page); |