diff options
| author | Yang Shi <shy828301@gmail.com> | 2022-06-16 10:48:39 -0700 |
|---|---|---|
| committer | akpm <akpm@linux-foundation.org> | 2022-07-17 17:14:33 -0700 |
| commit | 1064026bab9f011bdea1251d44d66bbbcee04f6e (patch) | |
| tree | 13d20433b8a8316fc86dd07c45f07b06aad6e58c /mm/khugepaged.c | |
| parent | 7da4e2cb8b1ff8221759bfc7512d651ee69516dc (diff) | |
| download | linux-1064026bab9f011bdea1251d44d66bbbcee04f6e.tar.bz2 | |
mm: khugepaged: reorg some khugepaged helpers
The khugepaged_{enabled|always|req_madv} are not khugepaged only anymore,
move them to huge_mm.h and rename to hugepage_flags_xxx, and remove
khugepaged_req_madv due to no users.
Also move khugepaged_defrag to khugepaged.c since its only caller is in
that file, it doesn't have to be in a header file.
Link: https://lkml.kernel.org/r/20220616174840.1202070-7-shy828301@gmail.com
Signed-off-by: Yang Shi <shy828301@gmail.com>
Reviewed-by: Zach O'Keefe <zokeefe@google.com>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Miaohe Lin <linmiaohe@huawei.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm/khugepaged.c')
| -rw-r--r-- | mm/khugepaged.c | 18 |
1 files changed, 11 insertions, 7 deletions
diff --git a/mm/khugepaged.c b/mm/khugepaged.c index d683ef1edeb5..01f71786d530 100644 --- a/mm/khugepaged.c +++ b/mm/khugepaged.c @@ -465,7 +465,7 @@ void khugepaged_enter_vma(struct vm_area_struct *vma, unsigned long vm_flags) { if (!test_bit(MMF_VM_HUGEPAGE, &vma->vm_mm->flags) && - khugepaged_enabled()) { + hugepage_flags_enabled()) { if (hugepage_vma_check(vma, vm_flags, false, false)) __khugepaged_enter(vma->vm_mm); } @@ -761,6 +761,10 @@ static bool khugepaged_scan_abort(int nid) return false; } +#define khugepaged_defrag() \ + (transparent_hugepage_flags & \ + (1<<TRANSPARENT_HUGEPAGE_DEFRAG_KHUGEPAGED_FLAG)) + /* Defrag for khugepaged will enter direct reclaim/compaction if necessary */ static inline gfp_t alloc_hugepage_khugepaged_gfpmask(void) { @@ -858,7 +862,7 @@ static struct page *khugepaged_alloc_hugepage(bool *wait) khugepaged_alloc_sleep(); } else count_vm_event(THP_COLLAPSE_ALLOC); - } while (unlikely(!hpage) && likely(khugepaged_enabled())); + } while (unlikely(!hpage) && likely(hugepage_flags_enabled())); return hpage; } @@ -2172,7 +2176,7 @@ breakouterloop_mmap_lock: static int khugepaged_has_work(void) { return !list_empty(&khugepaged_scan.mm_head) && - khugepaged_enabled(); + hugepage_flags_enabled(); } static int khugepaged_wait_event(void) @@ -2237,7 +2241,7 @@ static void khugepaged_wait_work(void) return; } - if (khugepaged_enabled()) + if (hugepage_flags_enabled()) wait_event_freezable(khugepaged_wait, khugepaged_wait_event()); } @@ -2268,7 +2272,7 @@ static void set_recommended_min_free_kbytes(void) int nr_zones = 0; unsigned long recommended_min; - if (!khugepaged_enabled()) { + if (!hugepage_flags_enabled()) { calculate_min_free_kbytes(); goto update_wmarks; } @@ -2318,7 +2322,7 @@ int start_stop_khugepaged(void) int err = 0; mutex_lock(&khugepaged_mutex); - if (khugepaged_enabled()) { + if (hugepage_flags_enabled()) { if (!khugepaged_thread) khugepaged_thread = kthread_run(khugepaged, NULL, "khugepaged"); @@ -2344,7 +2348,7 @@ fail: void khugepaged_min_free_kbytes_update(void) { mutex_lock(&khugepaged_mutex); - if (khugepaged_enabled() && khugepaged_thread) + if (hugepage_flags_enabled() && khugepaged_thread) set_recommended_min_free_kbytes(); mutex_unlock(&khugepaged_mutex); } |