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Searched refs:PG_head (Results 1 – 5 of 5) sorted by relevance

/linux-6.1.9/include/linux/
Dpage-flags.h117 PG_head, /* A head page */ enumerator
226 test_bit(PG_head, &page->flags)) { in page_fixed_fake_head()
297 return test_bit(PG_head, &page->flags) || in PageCompound()
320 VM_BUG_ON_PGFLAGS(n > 0 && !test_bit(PG_head, &page->flags), page); in folio_flags()
782 return test_bit(PG_head, folio_flags(folio, FOLIO_PF_ANY)); in folio_test_head()
788 return test_bit(PG_head, &page->flags) && !page_is_fake_head(page); in PageHead()
824 #define PG_head_mask ((1UL << PG_head))
/linux-6.1.9/Documentation/mm/
Dvmemmap_dedup.rst176 more than one ``struct page`` struct with ``PG_head`` (e.g. 8 per 2 MB HugeTLB
179 ``struct page`` with ``PG_head`` are fake head ``struct page``. We need an
182 parameter is the tail ``struct page`` but with ``PG_head``. The following code
187 if (test_bit(PG_head, &page->flags)) {
200 We can safely access the field of the **page[1]** with ``PG_head`` because the
Dtranshuge.rst147 page to the tail pages before clearing all PG_head/tail bits from the page
/linux-6.1.9/include/trace/events/
Dmmflags.h123 {1UL << PG_head, "head" }, \
/linux-6.1.9/mm/
Dmemory-failure.c1134 #define head (1UL << PG_head)