56 	void (*collapse)(const char *msg, char *p, int nr_hpages,  member
608 	 * The latter is ineligible for collapse by MADV_COLLAPSE  in alloc_hpage()
670 	printf("Creating %s for collapse%s...", finfo.path,  in file_setup_area()
687 	printf("Opening %s read only for collapse...", finfo.path);  in file_setup_area()
739 	finfo.fd = memfd_create("khugepaged-selftest-collapse-shmem", 0);  in shmem_setup_area()
891 	.collapse = &khugepaged_collapse,
897 	.collapse = &madvise_collapse,
942 	c->collapse("Collapse multiple fully populated PTE table", p, nr_hpages,  in collapse_full()
953 	c->collapse("Do not collapse empty PTE table", p, 1, ops, false);  in collapse_empty()
963 	c->collapse("Collapse PTE table with single PTE entry present", p,  in collapse_single_pte_entry()
987 	c->collapse("Maybe collapse with max_ptes_none exceeded", p, 1,  in collapse_max_ptes_none()
993 		c->collapse("Collapse with max_ptes_none PTEs empty", p, 1, ops,  in collapse_max_ptes_none()
1022 	c->collapse("Collapse with swapping in single PTE entry", p, 1, ops,  in collapse_swapin_single_pte()
1049 	c->collapse("Maybe collapse with max_ptes_swap exceeded", p, 1, ops,  in collapse_max_ptes_swap()
1068 		c->collapse("Collapse with max_ptes_swap pages swapped out", p,  in collapse_max_ptes_swap()
1097 	c->collapse("Collapse PTE table with single PTE mapping compound page",  in collapse_single_pte_entry_compound()
1117 	c->collapse("Collapse PTE table full of compound pages", p, 1, ops,  in collapse_full_of_compound()
1169 	c->collapse("Collapse PTE table full of different compound pages", p, 1,  in collapse_compound_extreme()
1202 		c->collapse("Collapse PTE table with single page shared with parent process",  in collapse_fork()
1249 		c->collapse("Collapse PTE table full of compound pages in child",  in collapse_fork_compound()
1297 		c->collapse("Maybe collapse with max_ptes_shared exceeded", p,  in collapse_max_ptes_shared()
1310 			c->collapse("Collapse with max_ptes_shared PTEs shared",  in collapse_max_ptes_shared()
1338 	c->collapse("Collapse fully populated PTE table...", p, 1, ops, true);  in madvise_collapse_existing_thps()
1341 	/* c->collapse() will find a hugepage and complain - call directly. */  in madvise_collapse_existing_thps()
1342 	__madvise_collapse("Re-collapse PMD-mapped hugepage", p, 1, ops, true);  in madvise_collapse_existing_thps()
1361 	/* Let khugepaged collapse and leave pmd cleared */  in madvise_retracted_page_tables()
1362 	if (wait_for_scan("Collapse and leave PMD cleared", p, nr_hpages,  in madvise_retracted_page_tables()
1368 	c->collapse("Install huge PMD from page cache", p, nr_hpages, ops,  in madvise_retracted_page_tables()
1452 		 * When testing file-backed memory, the collapse path  in main()