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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2015-04-14 16:49:17 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-04-14 16:49:17 -0700 |
| commit | 1dcf58d6e6e6eb7ec10e9abc56887b040205b06f (patch) | |
| tree | c03e7a25ef13eea62f1547914a76e5c68f3f4c28 /mm/compaction.c | |
| parent | 80dcc31fbe55932ac9204daee5f2ebc0c49b6da3 (diff) | |
| parent | e4b0db72be2487bae0e3251c22f82c104f7c1cfd (diff) | |
| download | net-1dcf58d6e6e6eb7ec10e9abc56887b040205b06f.tar.gz | |
Merge branch 'akpm' (patches from Andrew)
Merge first patchbomb from Andrew Morton:
- arch/sh updates
- ocfs2 updates
- kernel/watchdog feature
- about half of mm/
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (122 commits)
Documentation: update arch list in the 'memtest' entry
Kconfig: memtest: update number of test patterns up to 17
arm: add support for memtest
arm64: add support for memtest
memtest: use phys_addr_t for physical addresses
mm: move memtest under mm
mm, hugetlb: abort __get_user_pages if current has been oom killed
mm, mempool: do not allow atomic resizing
memcg: print cgroup information when system panics due to panic_on_oom
mm: numa: remove migrate_ratelimited
mm: fold arch_randomize_brk into ARCH_HAS_ELF_RANDOMIZE
mm: split ET_DYN ASLR from mmap ASLR
s390: redefine randomize_et_dyn for ELF_ET_DYN_BASE
mm: expose arch_mmap_rnd when available
s390: standardize mmap_rnd() usage
powerpc: standardize mmap_rnd() usage
mips: extract logic for mmap_rnd()
arm64: standardize mmap_rnd() usage
x86: standardize mmap_rnd() usage
arm: factor out mmap ASLR into mmap_rnd
...
Diffstat (limited to 'mm/compaction.c')
| -rw-r--r-- | mm/compaction.c | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/mm/compaction.c b/mm/compaction.c index 8c0d9459b54a02..a18201a8124e5d 100644 --- a/mm/compaction.c +++ b/mm/compaction.c @@ -1174,13 +1174,24 @@ static int __compact_finished(struct zone *zone, struct compact_control *cc, /* Direct compactor: Is a suitable page free? */ for (order = cc->order; order < MAX_ORDER; order++) { struct free_area *area = &zone->free_area[order]; + bool can_steal; /* Job done if page is free of the right migratetype */ if (!list_empty(&area->free_list[migratetype])) return COMPACT_PARTIAL; - /* Job done if allocation would set block type */ - if (order >= pageblock_order && area->nr_free) +#ifdef CONFIG_CMA + /* MIGRATE_MOVABLE can fallback on MIGRATE_CMA */ + if (migratetype == MIGRATE_MOVABLE && + !list_empty(&area->free_list[MIGRATE_CMA])) + return COMPACT_PARTIAL; +#endif + /* + * Job done if allocation would steal freepages from + * other migratetype buddy lists. + */ + if (find_suitable_fallback(area, order, migratetype, + true, &can_steal) != -1) return COMPACT_PARTIAL; } |