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authorZhang Yanfei <zhangyanfei@cn.fujitsu.com>2013-07-08 15:59:52 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2013-07-09 10:33:20 -0700
commit7960aedde8cfa72e4caf488806ea7ea7d2fa8dba (patch)
tree1d565e1ae9f59f7dfedff57bb30afbaec251d669 /mm/vmalloc.c
parent609838cfed972d49a65aac7923a9ff5cbe482e30 (diff)
mm: remove duplicated call of get_pfn_range_for_nid
When calculating pages in a node, for each zone in that node, we will have zone_spanned_pages_in_node --> get_pfn_range_for_nid zone_absent_pages_in_node --> get_pfn_range_for_nid That is to say, we call the get_pfn_range_for_nid to get start_pfn and end_pfn of the node for MAX_NR_ZONES * 2 times. And this is totally unnecessary if we call the get_pfn_range_for_nid before zone_*_pages_in_node add two extra arguments node_start_pfn and node_end_pfn for zone_*_pages_in_node, then we can remove the get_pfn_range_in_node in zone_*_pages_in_node. [akpm@linux-foundation.org: make definitions more readable] Signed-off-by: Zhang Yanfei <zhangyanfei@cn.fujitsu.com> Cc: Michal Hocko <mhocko@suse.cz> Cc: Wu Fengguang <fengguang.wu@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/vmalloc.c')
0 files changed, 0 insertions, 0 deletions