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authorChristoph Lameter <christoph@scalex86.org>2005-09-06 18:16:33 -0400
committerLinus Torvalds <torvalds@g5.osdl.org>2005-09-07 19:57:18 -0400
commitc3d8c1414573be8cf7c8fdc1e076935697c7f6af (patch)
treebd2fc21473e03fbbf5c1182ee584b68ebfd8b1cf /mm/page_alloc.c
parentb3dbb4ecd46767b621df3dedd28788da93ee0cac (diff)
[PATCH] More __read_mostly variables
Move some more frequently read variables that showed up during some of our performance tests as sometimes ending up in hot cachelines to the read_mostly section. Fix: Move the __read_mostly from before hpet_usec_quotient to follow the variable like the other uses of __read_mostly. Signed-off-by: Alok N Kataria <alokk@calsoftinc.com> Signed-off-by: Christoph Lameter <christoph@scalex86.org> Signed-off-by: Shai Fultheim <shai@scalex86.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'mm/page_alloc.c')
-rw-r--r--mm/page_alloc.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index b06a9636d971..34bba8f1144e 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -42,11 +42,11 @@
42 * MCD - HACK: Find somewhere to initialize this EARLY, or make this 42 * MCD - HACK: Find somewhere to initialize this EARLY, or make this
43 * initializer cleaner 43 * initializer cleaner
44 */ 44 */
45nodemask_t node_online_map = { { [0] = 1UL } }; 45nodemask_t node_online_map __read_mostly = { { [0] = 1UL } };
46EXPORT_SYMBOL(node_online_map); 46EXPORT_SYMBOL(node_online_map);
47nodemask_t node_possible_map = NODE_MASK_ALL; 47nodemask_t node_possible_map __read_mostly = NODE_MASK_ALL;
48EXPORT_SYMBOL(node_possible_map); 48EXPORT_SYMBOL(node_possible_map);
49struct pglist_data *pgdat_list; 49struct pglist_data *pgdat_list __read_mostly;
50unsigned long totalram_pages; 50unsigned long totalram_pages;
51unsigned long totalhigh_pages; 51unsigned long totalhigh_pages;
52long nr_swap_pages; 52long nr_swap_pages;
@@ -68,7 +68,7 @@ EXPORT_SYMBOL(nr_swap_pages);
68 * Used by page_zone() to look up the address of the struct zone whose 68 * Used by page_zone() to look up the address of the struct zone whose
69 * id is encoded in the upper bits of page->flags 69 * id is encoded in the upper bits of page->flags
70 */ 70 */
71struct zone *zone_table[1 << ZONETABLE_SHIFT]; 71struct zone *zone_table[1 << ZONETABLE_SHIFT] __read_mostly;
72EXPORT_SYMBOL(zone_table); 72EXPORT_SYMBOL(zone_table);
73 73
74static char *zone_names[MAX_NR_ZONES] = { "DMA", "Normal", "HighMem" }; 74static char *zone_names[MAX_NR_ZONES] = { "DMA", "Normal", "HighMem" };