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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2018-04-06 14:19:26 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2018-04-06 14:19:26 -0700 |
| commit | 3b54765cca23152ec0cc254b75c877c10f6e2870 (patch) | |
| tree | 795785d2a9d7498df9452be138867bd996c4cea5 /mm/compaction.c | |
| parent | 3fd14cdcc05a682b03743683ce3a726898b20555 (diff) | |
| parent | 97b1255cb27c551d7c3c5c496d787da40772da99 (diff) | |
| download | linux-3b54765cca23152ec0cc254b75c877c10f6e2870.tar.gz | |
Merge branch 'akpm' (patches from Andrew)
Merge updates from Andrew Morton:
- a few misc things
- ocfs2 updates
- the v9fs maintainers have been missing for a long time. I've taken
over v9fs patch slinging.
- most of MM
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (116 commits)
mm,oom_reaper: check for MMF_OOM_SKIP before complaining
mm/ksm: fix interaction with THP
mm/memblock.c: cast constant ULLONG_MAX to phys_addr_t
headers: untangle kmemleak.h from mm.h
include/linux/mmdebug.h: make VM_WARN* non-rvals
mm/page_isolation.c: make start_isolate_page_range() fail if already isolated
mm: change return type to vm_fault_t
mm, oom: remove 3% bonus for CAP_SYS_ADMIN processes
mm, page_alloc: wakeup kcompactd even if kswapd cannot free more memory
kernel/fork.c: detect early free of a live mm
mm: make counting of list_lru_one::nr_items lockless
mm/swap_state.c: make bool enable_vma_readahead and swap_vma_readahead() static
block_invalidatepage(): only release page if the full page was invalidated
mm: kernel-doc: add missing parameter descriptions
mm/swap.c: remove @cold parameter description for release_pages()
mm/nommu: remove description of alloc_vm_area
zram: drop max_zpage_size and use zs_huge_class_size()
zsmalloc: introduce zs_huge_class_size()
mm: fix races between swapoff and flush dcache
fs/direct-io.c: minor cleanups in do_blockdev_direct_IO
...
Diffstat (limited to 'mm/compaction.c')
| -rw-r--r-- | mm/compaction.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/mm/compaction.c b/mm/compaction.c index 2c8999d027abb9..88d01a50a0151e 100644 --- a/mm/compaction.c +++ b/mm/compaction.c @@ -576,6 +576,7 @@ isolate_fail: /** * isolate_freepages_range() - isolate free pages. + * @cc: Compaction control structure. * @start_pfn: The first PFN to start isolating. * @end_pfn: The one-past-last PFN. * @@ -1988,6 +1989,14 @@ static void kcompactd_do_work(pg_data_t *pgdat) compaction_defer_reset(zone, cc.order, false); } else if (status == COMPACT_PARTIAL_SKIPPED || status == COMPACT_COMPLETE) { /* + * Buddy pages may become stranded on pcps that could + * otherwise coalesce on the zone's free area for + * order >= cc.order. This is ratelimited by the + * upcoming deferral. + */ + drain_all_pages(zone); + + /* * We use sync migration mode here, so we defer like * sync direct compaction does. */ |