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| author |   Ingo Molnar <mingo@elte.hu> | 2011-02-14 13:18:51 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2011-02-14 13:18:56 +0100 |
| commit | 91e04ec05838a5b2c790decf2a91af98cb1666e8 (patch) | |
| tree | ea7373bdfab118ab6312ed3fa1fc0694ccfb38db /mm/page_alloc.c | |
| parent | x86: Don't copy per_cpu cpuinfo for BSP two times (diff) | |
| parent | Linux 2.6.38-rc4 (diff) | |
| download | wireguard-linux-91e04ec05838a5b2c790decf2a91af98cb1666e8.tar.xz wireguard-linux-91e04ec05838a5b2c790decf2a91af98cb1666e8.zip | |
Merge commit 'v2.6.38-rc4' into x86/cpu
Merge reason: pick up the latest fixes.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to '')
| -rw-r--r-- | mm/page_alloc.c | 18 |
1 files changed, 15 insertions, 3 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 90c1439549fd..a873e61e312e 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -1088,8 +1088,10 @@ static void drain_pages(unsigned int cpu) pset = per_cpu_ptr(zone->pageset, cpu); pcp = &pset->pcp; - free_pcppages_bulk(zone, pcp->count, pcp); - pcp->count = 0; + if (pcp->count) { + free_pcppages_bulk(zone, pcp->count, pcp); + pcp->count = 0; + } local_irq_restore(flags); } } @@ -2034,6 +2036,14 @@ restart: */ alloc_flags = gfp_to_alloc_flags(gfp_mask); + /* + * Find the true preferred zone if the allocation is unconstrained by + * cpusets. + */ + if (!(alloc_flags & ALLOC_CPUSET) && !nodemask) + first_zones_zonelist(zonelist, high_zoneidx, NULL, + &preferred_zone); + /* This is the last chance, in general, before the goto nopage. */ page = get_page_from_freelist(gfp_mask, nodemask, order, zonelist, high_zoneidx, alloc_flags & ~ALLOC_NO_WATERMARKS, @@ -2192,7 +2202,9 @@ __alloc_pages_nodemask(gfp_t gfp_mask, unsigned int order, get_mems_allowed(); /* The preferred zone is used for statistics later */ - first_zones_zonelist(zonelist, high_zoneidx, nodemask, &preferred_zone); + first_zones_zonelist(zonelist, high_zoneidx, + nodemask ? : &cpuset_current_mems_allowed, + &preferred_zone); if (!preferred_zone) { put_mems_allowed(); return NULL; |