diff options
| author | Luca Coelho <luciano.coelho@intel.com> | 2016-05-10 10:30:56 +0300 |
|---|---|---|
| committer | Luca Coelho <luciano.coelho@intel.com> | 2016-05-10 10:30:56 +0300 |
| commit | bae6692c24236d0203f88a444986d86437a858fa (patch) | |
| tree | 0f9bee1250af3046fa46049736b615b81e60f56e /mm/huge_memory.c | |
| parent | 46167a8fd4248533ad15867e6988ff20e76de641 (diff) | |
| parent | 57fbcce37be7c1d2622b56587c10ade00e96afa3 (diff) | |
Merge tag 'mac80211-next-for-davem-2016-04-13' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next into master
To synchronize with Kalle, here's just a big change that affects
all drivers - removing the duplicated enum ieee80211_band and
replacing it by enum nl80211_band. On top of that, just a small
documentation update.
Diffstat (limited to 'mm/huge_memory.c')
| -rw-r--r-- | mm/huge_memory.c | 19 |
1 files changed, 15 insertions, 4 deletions
diff --git a/mm/huge_memory.c b/mm/huge_memory.c index 021db1781872..86f9f8b82f8e 100644 --- a/mm/huge_memory.c +++ b/mm/huge_memory.c @@ -83,7 +83,7 @@ unsigned long transparent_hugepage_flags __read_mostly = (1<<TRANSPARENT_HUGEPAGE_USE_ZERO_PAGE_FLAG); /* default scan 8*512 pte (or vmas) every 30 second */ -static unsigned int khugepaged_pages_to_scan __read_mostly = HPAGE_PMD_NR*8; +static unsigned int khugepaged_pages_to_scan __read_mostly; static unsigned int khugepaged_pages_collapsed; static unsigned int khugepaged_full_scans; static unsigned int khugepaged_scan_sleep_millisecs __read_mostly = 10000; @@ -98,7 +98,7 @@ static DECLARE_WAIT_QUEUE_HEAD(khugepaged_wait); * it would have happened if the vma was large enough during page * fault. */ -static unsigned int khugepaged_max_ptes_none __read_mostly = HPAGE_PMD_NR-1; +static unsigned int khugepaged_max_ptes_none __read_mostly; static int khugepaged(void *none); static int khugepaged_slab_init(void); @@ -669,6 +669,18 @@ static int __init hugepage_init(void) return -EINVAL; } + khugepaged_pages_to_scan = HPAGE_PMD_NR * 8; + khugepaged_max_ptes_none = HPAGE_PMD_NR - 1; + /* + * hugepages can't be allocated by the buddy allocator + */ + MAYBE_BUILD_BUG_ON(HPAGE_PMD_ORDER >= MAX_ORDER); + /* + * we use page->mapping and page->index in second tail page + * as list_head: assuming THP order >= 2 + */ + MAYBE_BUILD_BUG_ON(HPAGE_PMD_ORDER < 2); + err = hugepage_init_sysfs(&hugepage_kobj); if (err) goto err_sysfs; @@ -773,7 +785,6 @@ void prep_transhuge_page(struct page *page) * we use page->mapping and page->indexlru in second tail page * as list_head: assuming THP order >= 2 */ - BUILD_BUG_ON(HPAGE_PMD_ORDER < 2); INIT_LIST_HEAD(page_deferred_list(page)); set_compound_page_dtor(page, TRANSHUGE_PAGE_DTOR); @@ -2567,7 +2578,7 @@ static int khugepaged_scan_pmd(struct mm_struct *mm, } khugepaged_node_load[node]++; if (!PageLRU(page)) { - result = SCAN_SCAN_ABORT; + result = SCAN_PAGE_LRU; goto out_unmap; } if (PageLocked(page)) { |