diff options
| author | Len Brown <len.brown@intel.com> | 2010-08-15 01:06:31 -0400 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2010-08-15 01:06:31 -0400 |
| commit | 95ee46aa8698f2000647dfb362400fadbb5807cf (patch) | |
| tree | e5a05c7297f997e191c73091934e42e3195c0e40 /mm/page_alloc.c | |
| parent | cfa806f059801dbe7e435745eb2e187c8bfe1e7f (diff) | |
| parent | 92fa5bd9a946b6e7aab6764e7312e4e3d9bed295 (diff) | |
Merge branch 'linus' into release
Conflicts:
drivers/acpi/debug.c
Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'mm/page_alloc.c')
| -rw-r--r-- | mm/page_alloc.c | 33 |
1 files changed, 21 insertions, 12 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 9bd339eb04c..a9649f4b261 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -1738,7 +1738,7 @@ __alloc_pages_may_oom(gfp_t gfp_mask, unsigned int order, struct page *page; /* Acquire the OOM killer lock for the zones in zonelist */ - if (!try_set_zone_oom(zonelist, gfp_mask)) { + if (!try_set_zonelist_oom(zonelist, gfp_mask)) { schedule_timeout_uninterruptible(1); return NULL; } @@ -1759,6 +1759,9 @@ __alloc_pages_may_oom(gfp_t gfp_mask, unsigned int order, /* The OOM killer will not help higher order allocs */ if (order > PAGE_ALLOC_COSTLY_ORDER) goto out; + /* The OOM killer does not needlessly kill tasks for lowmem */ + if (high_zoneidx < ZONE_NORMAL) + goto out; /* * GFP_THISNODE contains __GFP_NORETRY and we never hit this. * Sanity check for bare calls of __GFP_THISNODE, not real OOM. @@ -2052,15 +2055,23 @@ rebalance: if (page) goto got_pg; - /* - * The OOM killer does not trigger for high-order - * ~__GFP_NOFAIL allocations so if no progress is being - * made, there are no other options and retrying is - * unlikely to help. - */ - if (order > PAGE_ALLOC_COSTLY_ORDER && - !(gfp_mask & __GFP_NOFAIL)) - goto nopage; + if (!(gfp_mask & __GFP_NOFAIL)) { + /* + * The oom killer is not called for high-order + * allocations that may fail, so if no progress + * is being made, there are no other options and + * retrying is unlikely to help. + */ + if (order > PAGE_ALLOC_COSTLY_ORDER) + goto nopage; + /* + * The oom killer is not called for lowmem + * allocations to prevent needlessly killing + * innocent tasks. + */ + if (high_zoneidx < ZONE_NORMAL) + goto nopage; + } goto restart; } @@ -4089,8 +4100,6 @@ static void __paginginit free_area_init_core(struct pglist_data *pgdat, zone_seqlock_init(zone); zone->zone_pgdat = pgdat; - zone->prev_priority = DEF_PRIORITY; - zone_pcp_init(zone); for_each_lru(l) { INIT_LIST_HEAD(&zone->lru[l].list); |