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| author | Matthew Wilcox (Oracle) <willy@infradead.org> | 2020-10-16 05:10:15 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-10-16 20:11:19 +0200 |
| commit | ab130f9108dcf2062a44f9f0706824ef2e30492e (patch) | |
| tree | 07e3283496e2772048141c882b1ef633364dec0f /mm/page_owner.c | |
| parent | include/linux/mmzone.h: remove unused early_pfn_valid() (diff) | |
| download | linux-ab130f9108dcf2062a44f9f0706824ef2e30492e.tar.xz linux-ab130f9108dcf2062a44f9f0706824ef2e30492e.zip | |
mm: rename page_order() to buddy_order()
The current page_order() can only be called on pages in the buddy
allocator. For compound pages, you have to use compound_order(). This is
confusing and led to a bug, so rename page_order() to buddy_order().
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Link: https://lkml.kernel.org/r/20201001152259.14932-2-willy@infradead.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/page_owner.c')
| -rw-r--r-- | mm/page_owner.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/mm/page_owner.c b/mm/page_owner.c index 4ca3051a1035..b735a8eafcdb 100644 --- a/mm/page_owner.c +++ b/mm/page_owner.c @@ -295,7 +295,7 @@ void pagetypeinfo_showmixedcount_print(struct seq_file *m, if (PageBuddy(page)) { unsigned long freepage_order; - freepage_order = page_order_unsafe(page); + freepage_order = buddy_order_unsafe(page); if (freepage_order < MAX_ORDER) pfn += (1UL << freepage_order) - 1; continue; @@ -490,7 +490,7 @@ read_page_owner(struct file *file, char __user *buf, size_t count, loff_t *ppos) page = pfn_to_page(pfn); if (PageBuddy(page)) { - unsigned long freepage_order = page_order_unsafe(page); + unsigned long freepage_order = buddy_order_unsafe(page); if (freepage_order < MAX_ORDER) pfn += (1UL << freepage_order) - 1; @@ -584,7 +584,7 @@ static void init_pages_in_zone(pg_data_t *pgdat, struct zone *zone) * heavy lock contention. */ if (PageBuddy(page)) { - unsigned long order = page_order_unsafe(page); + unsigned long order = buddy_order_unsafe(page); if (order > 0 && order < MAX_ORDER) pfn += (1UL << order) - 1; |