57 	void (*collapse)(const char *msg, char *p, int nr_hpages,  member
312 	 * The latter is ineligible for collapse by MADV_COLLAPSE  in alloc_hpage()
374 	printf("Creating %s for collapse%s...", finfo.path,  in file_setup_area()
391 	printf("Opening %s read only for collapse...", finfo.path);  in file_setup_area()
443 	finfo.fd = memfd_create("khugepaged-selftest-collapse-shmem", 0);  in shmem_setup_area()
595 	.collapse = &khugepaged_collapse,
601 	.collapse = &madvise_collapse,
651 	c->collapse("Collapse multiple fully populated PTE table", p, nr_hpages,  in collapse_full()
662 	c->collapse("Do not collapse empty PTE table", p, 1, ops, false);  in collapse_empty()
672 	c->collapse("Collapse PTE table with single PTE entry present", p,  in collapse_single_pte_entry()
697 	c->collapse("Maybe collapse with max_ptes_none exceeded", p, 1,  in collapse_max_ptes_none()
703 		c->collapse("Collapse with max_ptes_none PTEs empty", p, 1, ops,  in collapse_max_ptes_none()
732 	c->collapse("Collapse with swapping in single PTE entry", p, 1, ops,  in collapse_swapin_single_pte()
759 	c->collapse("Maybe collapse with max_ptes_swap exceeded", p, 1, ops,  in collapse_max_ptes_swap()
778 		c->collapse("Collapse with max_ptes_swap pages swapped out", p,  in collapse_max_ptes_swap()
807 	c->collapse("Collapse PTE table with single PTE mapping compound page",  in collapse_single_pte_entry_compound()
827 	c->collapse("Collapse PTE table full of compound pages", p, 1, ops,  in collapse_full_of_compound()
879 	c->collapse("Collapse PTE table full of different compound pages", p, 1,  in collapse_compound_extreme()
912 		c->collapse("Collapse PTE table with single page shared with parent process",  in collapse_fork()
959 		c->collapse("Collapse PTE table full of compound pages in child",  in collapse_fork_compound()
1007 		c->collapse("Maybe collapse with max_ptes_shared exceeded", p,  in collapse_max_ptes_shared()
1020 			c->collapse("Collapse with max_ptes_shared PTEs shared",  in collapse_max_ptes_shared()
1048 	c->collapse("Collapse fully populated PTE table...", p, 1, ops, true);  in madvise_collapse_existing_thps()
1051 	/* c->collapse() will find a hugepage and complain - call directly. */  in madvise_collapse_existing_thps()
1052 	__madvise_collapse("Re-collapse PMD-mapped hugepage", p, 1, ops, true);  in madvise_collapse_existing_thps()
1071 	/* Let khugepaged collapse and leave pmd cleared */  in madvise_retracted_page_tables()
1072 	if (wait_for_scan("Collapse and leave PMD cleared", p, nr_hpages,  in madvise_retracted_page_tables()
1078 	c->collapse("Install huge PMD from page cache", p, nr_hpages, ops,  in madvise_retracted_page_tables()
1184 		 * When testing file-backed memory, the collapse path  in main()