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authorDavid Rientjes <rientjes@google.com>2007-10-17 02:25:54 -0400
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-10-17 11:42:45 -0400
commite815af95f94914993bbad279c71cf5fef9f4eaac (patch)
tree492e0d3e8d3303f37cf9fb0beecf952a1c828c53 /mm/vmstat.c
parent70e24bdf6d2fead14631e72a07fba012400c521e (diff)
oom: change all_unreclaimable zone member to flags
Convert the int all_unreclaimable member of struct zone to unsigned long flags. This can now be used to specify several different zone flags such as all_unreclaimable and reclaim_in_progress, which can now be removed and converted to a per-zone flag. Flags are set and cleared as follows: zone_set_flag(struct zone *zone, zone_flags_t flag) zone_clear_flag(struct zone *zone, zone_flags_t flag) Defines the first zone flags, ZONE_ALL_UNRECLAIMABLE and ZONE_RECLAIM_LOCKED, which have the same semantics as the old zone->all_unreclaimable and zone->reclaim_in_progress, respectively. Also converts all current users that set or clear either flag to use the new interface. Helper functions are defined to test the flags: int zone_is_all_unreclaimable(const struct zone *zone) int zone_is_reclaim_locked(const struct zone *zone) All flag operators are of the atomic variety because there are currently readers that are implemented that do not take zone->lock. [akpm@linux-foundation.org: add needed include] Cc: Andrea Arcangeli <andrea@suse.de> Acked-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: David Rientjes <rientjes@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/vmstat.c')
-rw-r--r--mm/vmstat.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/vmstat.c b/mm/vmstat.c
index 3b5e9043e7db..4651bf153f35 100644
--- a/mm/vmstat.c
+++ b/mm/vmstat.c
@@ -704,7 +704,7 @@ static void zoneinfo_show_print(struct seq_file *m, pg_data_t *pgdat,
704 "\n all_unreclaimable: %u" 704 "\n all_unreclaimable: %u"
705 "\n prev_priority: %i" 705 "\n prev_priority: %i"
706 "\n start_pfn: %lu", 706 "\n start_pfn: %lu",
707 zone->all_unreclaimable, 707 zone_is_all_unreclaimable(zone),
708 zone->prev_priority, 708 zone->prev_priority,
709 zone->zone_start_pfn); 709 zone->zone_start_pfn);
710 seq_putc(m, '\n'); 710 seq_putc(m, '\n');