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| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-10-16 09:22:22 +0200 |
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| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-10-16 09:22:22 +0200 |
| commit | 58f2c391cc0560231d7636c39d31b1b26c9396b7 (patch) | |
| tree | 67956eea736a8763f67be8a52bcaf0d3fe4374f4 /mm/compaction.c | |
| parent | c2e5df616e1ae6c2a074cb241ebb65a318ebaf7c (diff) | |
| parent | 33d930e59a98fa10a0db9f56c7fa2f21a4aef9b9 (diff) | |
| download | linux-58f2c391cc0560231d7636c39d31b1b26c9396b7.tar.gz linux-58f2c391cc0560231d7636c39d31b1b26c9396b7.tar.xz | |
Merge 4.14-rc5 into char-misc-next
We need the fixes in here to resolve merge issues and for testing.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'mm/compaction.c')
| -rw-r--r-- | mm/compaction.c | 13 |
1 files changed, 5 insertions, 8 deletions
diff --git a/mm/compaction.c b/mm/compaction.c index fb548e4c7bd4..03d31a875341 100644 --- a/mm/compaction.c +++ b/mm/compaction.c @@ -1999,17 +1999,14 @@ void wakeup_kcompactd(pg_data_t *pgdat, int order, int classzone_idx) if (pgdat->kcompactd_max_order < order) pgdat->kcompactd_max_order = order; - /* - * Pairs with implicit barrier in wait_event_freezable() - * such that wakeups are not missed in the lockless - * waitqueue_active() call. - */ - smp_acquire__after_ctrl_dep(); - if (pgdat->kcompactd_classzone_idx > classzone_idx) pgdat->kcompactd_classzone_idx = classzone_idx; - if (!waitqueue_active(&pgdat->kcompactd_wait)) + /* + * Pairs with implicit barrier in wait_event_freezable() + * such that wakeups are not missed. + */ + if (!wq_has_sleeper(&pgdat->kcompactd_wait)) return; if (!kcompactd_node_suitable(pgdat)) |