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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2016-05-05 20:48:35 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-05-05 20:48:35 -0700 |
| commit | 9caa7e78481f17fb6ff77dfaca774998e7440430 (patch) | |
| tree | 4e4cf2931b24da9536efae5184ce45eb4659acb7 /mm/compaction.c | |
| parent | 43a3e837e22818c2c79dad95745a6b54d4e232f7 (diff) | |
| parent | 7322dd755e7dd34bc5359aa27abeed1687e0f628 (diff) | |
| download | linux-9caa7e78481f17fb6ff77dfaca774998e7440430.tar.bz2 | |
Merge branch 'akpm' (patches from Andrew)
Merge fixes from Andrew Morton:
"14 fixes"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
byteswap: try to avoid __builtin_constant_p gcc bug
lib/stackdepot: avoid to return 0 handle
mm: fix kcompactd hang during memory offlining
modpost: fix module autoloading for OF devices with generic compatible property
proc: prevent accessing /proc/<PID>/environ until it's ready
mm/zswap: provide unique zpool name
mm: thp: kvm: fix memory corruption in KVM with THP enabled
MAINTAINERS: fix Rajendra Nayak's address
mm, cma: prevent nr_isolated_* counters from going negative
mm: update min_free_kbytes from khugepaged after core initialization
huge pagecache: mmap_sem is unlocked when truncation splits pmd
rapidio/mport_cdev: fix uapi type definitions
mm: memcontrol: let v2 cgroups follow changes in system swappiness
mm: thp: correct split_huge_pages file permission
Diffstat (limited to 'mm/compaction.c')
| -rw-r--r-- | mm/compaction.c | 14 |
1 files changed, 4 insertions, 10 deletions
diff --git a/mm/compaction.c b/mm/compaction.c index ccf97b02b85f..8fa254043801 100644 --- a/mm/compaction.c +++ b/mm/compaction.c @@ -852,16 +852,8 @@ isolate_migratepages_range(struct compact_control *cc, unsigned long start_pfn, pfn = isolate_migratepages_block(cc, pfn, block_end_pfn, ISOLATE_UNEVICTABLE); - /* - * In case of fatal failure, release everything that might - * have been isolated in the previous iteration, and signal - * the failure back to caller. - */ - if (!pfn) { - putback_movable_pages(&cc->migratepages); - cc->nr_migratepages = 0; + if (!pfn) break; - } if (cc->nr_migratepages == COMPACT_CLUSTER_MAX) break; @@ -1741,7 +1733,7 @@ void compaction_unregister_node(struct node *node) static inline bool kcompactd_work_requested(pg_data_t *pgdat) { - return pgdat->kcompactd_max_order > 0; + return pgdat->kcompactd_max_order > 0 || kthread_should_stop(); } static bool kcompactd_node_suitable(pg_data_t *pgdat) @@ -1805,6 +1797,8 @@ static void kcompactd_do_work(pg_data_t *pgdat) INIT_LIST_HEAD(&cc.freepages); INIT_LIST_HEAD(&cc.migratepages); + if (kthread_should_stop()) + return; status = compact_zone(zone, &cc); if (zone_watermark_ok(zone, cc.order, low_wmark_pages(zone), |