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| author | David Rientjes <rientjes@google.com> | 2007-10-16 23:25:54 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-10-17 08:42:45 -0700 |
| commit | e815af95f94914993bbad279c71cf5fef9f4eaac (patch) | |
| tree | 492e0d3e8d3303f37cf9fb0beecf952a1c828c53 /mm/vmstat.c | |
| parent | 70e24bdf6d2fead14631e72a07fba012400c521e (diff) | |
| download | linux-e815af95f94914993bbad279c71cf5fef9f4eaac.tar.gz linux-e815af95f94914993bbad279c71cf5fef9f4eaac.tar.bz2 linux-e815af95f94914993bbad279c71cf5fef9f4eaac.zip | |
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.c | 2 |
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, "\n all_unreclaimable: %u" "\n prev_priority: %i" "\n start_pfn: %lu", - zone->all_unreclaimable, + zone_is_all_unreclaimable(zone), zone->prev_priority, zone->zone_start_pfn); seq_putc(m, '\n'); |