diff options
| author | Vishal Moola (Oracle) <vishal.moola@gmail.com> | 2023-10-20 11:33:30 -0700 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2023-10-25 16:47:14 -0700 |
| commit | b455f39d228935f88eebcd1f7c1a6981093c6a3b (patch) | |
| tree | 947056b1ad6480d868f0083acc5dda088745f0df /mm | |
| parent | dbf85c21e4aff90912b5d7755d2b25611f9191e9 (diff) | |
mm/khugepaged: convert alloc_charge_hpage() to use folios
Also remove count_memcg_page_event now that its last caller no longer uses
it and reword hpage_collapse_alloc_page() to hpage_collapse_alloc_folio().
This removes 1 call to compound_head() and helps convert khugepaged to
use folios throughout.
Link: https://lkml.kernel.org/r/20231020183331.10770-5-vishal.moola@gmail.com
Signed-off-by: Vishal Moola (Oracle) <vishal.moola@gmail.com>
Reviewed-by: Rik van Riel <riel@surriel.com>
Reviewed-by: Yang Shi <shy828301@gmail.com>
Cc: Kefeng Wang <wangkefeng.wang@huawei.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/khugepaged.c | 17 |
1 files changed, 10 insertions, 7 deletions
diff --git a/mm/khugepaged.c b/mm/khugepaged.c index 9efd8ff68f06..6a7184cd291b 100644 --- a/mm/khugepaged.c +++ b/mm/khugepaged.c @@ -888,16 +888,16 @@ static int hpage_collapse_find_target_node(struct collapse_control *cc) } #endif -static bool hpage_collapse_alloc_page(struct page **hpage, gfp_t gfp, int node, +static bool hpage_collapse_alloc_folio(struct folio **folio, gfp_t gfp, int node, nodemask_t *nmask) { - *hpage = __alloc_pages(gfp, HPAGE_PMD_ORDER, node, nmask); - if (unlikely(!*hpage)) { + *folio = __folio_alloc(gfp, HPAGE_PMD_ORDER, node, nmask); + + if (unlikely(!*folio)) { count_vm_event(THP_COLLAPSE_ALLOC_FAILED); return false; } - folio_prep_large_rmappable((struct folio *)*hpage); count_vm_event(THP_COLLAPSE_ALLOC); return true; } @@ -1064,17 +1064,20 @@ static int alloc_charge_hpage(struct page **hpage, struct mm_struct *mm, int node = hpage_collapse_find_target_node(cc); struct folio *folio; - if (!hpage_collapse_alloc_page(hpage, gfp, node, &cc->alloc_nmask)) + if (!hpage_collapse_alloc_folio(&folio, gfp, node, &cc->alloc_nmask)) { + *hpage = NULL; return SCAN_ALLOC_HUGE_PAGE_FAIL; + } - folio = page_folio(*hpage); if (unlikely(mem_cgroup_charge(folio, mm, gfp))) { folio_put(folio); *hpage = NULL; return SCAN_CGROUP_CHARGE_FAIL; } - count_memcg_page_event(*hpage, THP_COLLAPSE_ALLOC); + count_memcg_folio_events(folio, THP_COLLAPSE_ALLOC, 1); + + *hpage = folio_page(folio, 0); return SCAN_SUCCEED; } |