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Searched refs:madvise (Results 1 – 25 of 76) sorted by relevance

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/linux-6.6.21/tools/testing/selftests/mm/
Dmadv_populate.c40 ret = madvise(addr, pagesize, MADV_POPULATE_READ); in sense_support()
44 ret = madvise(addr, pagesize, MADV_POPULATE_WRITE); in sense_support()
62 ret = madvise(addr, SIZE, MADV_POPULATE_READ); in test_prot_read()
65 ret = madvise(addr, SIZE, MADV_POPULATE_WRITE); in test_prot_read()
83 ret = madvise(addr, SIZE, MADV_POPULATE_READ); in test_prot_write()
87 ret = madvise(addr, SIZE, MADV_POPULATE_WRITE); in test_prot_write()
109 ret = madvise(addr, SIZE, MADV_POPULATE_READ); in test_holes()
112 ret = madvise(addr, SIZE, MADV_POPULATE_WRITE); in test_holes()
117 ret = madvise(addr, 2 * pagesize, MADV_POPULATE_READ); in test_holes()
120 ret = madvise(addr, 2 * pagesize, MADV_POPULATE_WRITE); in test_holes()
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Dhugetlb-madvise.c135 ret = madvise(addr - base_page_size, NR_HUGE_PAGES * huge_page_size, in main()
144 ret = madvise(addr, (NR_HUGE_PAGES * huge_page_size) + base_page_size, in main()
169 ret = madvise(addr + base_page_size, in main()
179 if (madvise(addr, in main()
206 if (madvise(addr, NR_HUGE_PAGES * huge_page_size, MADV_DONTNEED)) { in main()
238 if (madvise(addr, NR_HUGE_PAGES * huge_page_size, MADV_DONTNEED)) { in main()
249 if (madvise(addr, NR_HUGE_PAGES * huge_page_size, MADV_DONTNEED)) { in main()
297 if (madvise(addr, NR_HUGE_PAGES * huge_page_size, MADV_DONTNEED)) { in main()
308 if (madvise(addr, NR_HUGE_PAGES * huge_page_size, MADV_REMOVE)) { in main()
353 if (madvise(addr, NR_HUGE_PAGES * huge_page_size, MADV_DONTNEED)) { in main()
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Dksm_functional_tests.c173 if (madvise(map, size, MADV_NOHUGEPAGE) && errno != EINVAL) { in mmap_and_merge_range()
195 } else if (madvise(map, size, MADV_MERGEABLE)) { in mmap_and_merge_range()
232 if (madvise(map, size, MADV_UNMERGEABLE)) { in test_unmerge()
278 if (madvise(map, size / 2, MADV_UNMERGEABLE)) { in test_unmerge_zero_pages()
319 if (madvise(map, size / 2, MADV_DONTNEED)) { in test_unmerge_discarded()
324 if (madvise(map, size, MADV_UNMERGEABLE)) { in test_unmerge_discarded()
384 if (madvise(map, size, MADV_UNMERGEABLE)) { in test_unmerge_uffd_wp()
526 if (madvise(map + size / 2, size / 2, MADV_UNMERGEABLE)) { in test_prot_none()
Dkhugepaged.c588 ret = madvise(p, size, MADV_COLLAPSE); in madvise_collapse_retry()
622 if (madvise(p, hpage_pmd_size, MADV_HUGEPAGE)) { in alloc_hpage()
715 if (madvise(((char *)p) + start, end - start, MADV_POPULATE_READ)) { in file_fault()
809 madvise(p, nr_hpages * hpage_pmd_size, MADV_HUGEPAGE); in __madvise_collapse()
845 madvise(p, nr_hpages * hpage_pmd_size, MADV_HUGEPAGE); in wait_for_scan()
860 madvise(p, nr_hpages * hpage_pmd_size, MADV_NOHUGEPAGE); in wait_for_scan()
925 madvise(p, page_size, MADV_DONTNEED); in alloc_at_fault()
1011 if (madvise(p, page_size, MADV_PAGEOUT)) { in collapse_swapin_single_pte()
1038 if (madvise(p, (max_ptes_swap + 1) * page_size, MADV_PAGEOUT)) { in collapse_max_ptes_swap()
1057 if (madvise(p, max_ptes_swap * page_size, MADV_PAGEOUT)) { in collapse_max_ptes_swap()
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Dcow.c691 ret = madvise(mem, pagesize, MADV_NOHUGEPAGE); in do_run_with_base_page()
702 madvise(mem, pagesize, MADV_PAGEOUT); in do_run_with_base_page()
755 ret = madvise(mem, thpsize, MADV_HUGEPAGE); in do_run_with_thp()
800 ret = madvise(mem + pagesize, thpsize - pagesize, MADV_DONTNEED); in do_run_with_thp()
833 ret = madvise(mem + pagesize, thpsize - pagesize, MADV_DONTFORK); in do_run_with_thp()
847 ret = madvise(mem + pagesize, thpsize - pagesize, MADV_DOFORK); in do_run_with_thp()
861 madvise(mem, size, MADV_PAGEOUT); in do_run_with_thp()
1166 ret = madvise(mem, size, MADV_COLLAPSE); in do_test_anon_thp_collapse()
1178 ret = madvise(mem + size / 2, size / 2, MADV_DONTFORK); in do_test_anon_thp_collapse()
1186 ret = madvise(mem, size / 2, MADV_DONTFORK); in do_test_anon_thp_collapse()
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Dtranshuge-stress.c76 if (madvise(ptr, len, MADV_HUGEPAGE)) in main()
116 if (madvise(p, HPAGE_SIZE - psize(), MADV_DONTNEED)) in main()
Dgup_test.c240 madvise(p, size, MADV_HUGEPAGE); in main()
242 madvise(p, size, MADV_NOHUGEPAGE); in main()
D.gitignore7 hugetlb-madvise
Duffd-unit-tests.c374 if (madvise(area_dst, page_size, MADV_DONTNEED)) in uffd_wp_unpopulated_test()
384 if (madvise(area_dst, page_size, MADV_DONTNEED)) in uffd_wp_unpopulated_test()
391 if (madvise(area_dst, page_size, MADV_DONTNEED)) in uffd_wp_unpopulated_test()
432 if (madvise(area_dst, page_size, MADV_DONTNEED)) in uffd_wp_fork_test_common()
439 madvise(area_dst, page_size, MADV_PAGEOUT); in uffd_wp_fork_test_common()
598 if (madvise(area_dst_alias, nr_pages * page_size, in uffd_minor_test_common()
Dsplit_huge_page_test.c104 madvise(one_page, len, MADV_HUGEPAGE); in split_pmd_thp()
167 madvise(one_page, len, MADV_HUGEPAGE); in split_pte_mapped_thp()
Duffd-common.c43 if (madvise(rel_area, nr_pages * page_size, MADV_DONTNEED)) in anon_release_pages()
65 if (madvise(rel_area, nr_pages * page_size, MADV_DONTNEED)) in hugetlb_release_pages()
68 if (madvise(rel_area, nr_pages * page_size, MADV_REMOVE)) in hugetlb_release_pages()
119 if (madvise(rel_area, nr_pages * page_size, MADV_REMOVE)) in shmem_release_pages()
Dksm_tests.c247 if (madvise(addr, size, MADV_MERGEABLE)) { in ksm_merge_pages()
271 if (madvise(addr, size, MADV_UNMERGEABLE)) { in ksm_unmerge_pages()
569 if (madvise(map_ptr, len, MADV_HUGEPAGE)) in ksm_merge_hugepages_time()
Dsoft-dirty.c90 ret = madvise(map, hpage_len, MADV_HUGEPAGE); in test_hugepage()
Dprotection_keys.c736 ret = madvise(ptr, HPAGE_SIZE, MADV_HUGEPAGE); in malloc_pkey_anon_huge()
738 ret = madvise(ptr, HPAGE_SIZE, MADV_WILLNEED); in malloc_pkey_anon_huge()
1465 madvise(p1, PAGE_SIZE, MADV_DONTNEED); in get_pointer_to_instructions()
1491 madvise(p1, PAGE_SIZE, MADV_DONTNEED); in test_executing_on_unreadable_memory()
1525 madvise(p1, PAGE_SIZE, MADV_DONTNEED); in test_implicit_mprotect_exec_only_memory()
Dmigration.c191 ASSERT_EQ(madvise(ptr, TWOMEG, MADV_HUGEPAGE), 0);
Dvm_util.c163 if (madvise(ptr, HPAGE_SIZE, MADV_HUGEPAGE)) in allocate_transhuge()
/linux-6.6.21/Documentation/translations/zh_CN/admin-guide/mm/
Dksm.rst35 以madvise控制KSM
38 KSM仅在特定的地址空间区域时运行，即应用程序通过使用如下所示的madvise(2)系统调
41 int madvise(addr, length, MADV_MERGEABLE)
45 int madvise(addr, length, MADV_UNMERGEABLE)
51 如果KSM未被配置到正在运行的内核中，则madvise MADV_MERGEABLE 和 MADV_UNMERGEABLE
58 当该进程将超过 ``vm.max_map_count`` 的设定，则madvise可能返回ENOMEM。（请参阅文档
61 与其他madvise调用一样，它们在用户地址空间的映射区域上使用：如果指定的范围包含未
174 味着不好的madvise-applied策略，所以开发者或管理员必须重新考虑如何改变madvis策
177 的比例在64位CPU上超过64，或者在32位CPU上超过128，那么应用程序的madvise策略应
185 是否或如何使用KSM。例如，如果cow_ksm增加得太快，用户可以减少madvise(, , MADV_MERGEABLE)
/linux-6.6.21/Documentation/translations/zh_CN/admin-guide/mm/damon/
Dusage.rst217 - ``willneed``: 对有 ``MADV_WILLNEED`` 的区域调用 ``madvise()`` 。
218 - ``cold``: 对具有 ``MADV_COLD`` 的区域调用 ``madvise()`` 。
219 - ``pageout``: 为具有 ``MADV_PAGEOUT`` 的区域调用 ``madvise()`` 。
220 - ``hugepage``: 为带有 ``MADV_HUGEPAGE`` 的区域调用 ``madvise()`` 。
221 - ``nohugepage``: 为带有 ``MADV_NOHUGEPAGE`` 的区域调用 ``madvise()``。
451 - 0: Call ``madvise()`` for the region with ``MADV_WILLNEED``
452 - 1: Call ``madvise()`` for the region with ``MADV_COLD``
453 - 2: Call ``madvise()`` for the region with ``MADV_PAGEOUT``
454 - 3: Call ``madvise()`` for the region with ``MADV_HUGEPAGE``
455 - 4: Call ``madvise()`` for the region with ``MADV_NOHUGEPAGE``
/linux-6.6.21/Documentation/admin-guide/mm/
Dksm.rst30 Controlling KSM with madvise
34 has advised to be likely candidates for merging, by using the madvise(2)
37 int madvise(addr, length, MADV_MERGEABLE)
43 int madvise(addr, length, MADV_UNMERGEABLE)
50 If KSM is not configured into the running kernel, madvise MADV_MERGEABLE
59 or MADV_UNMERGEABLE region, the madvise may return ENOMEM if the process
62 Like other madvise calls, they are intended for use on mapped areas of
190 indicate poor use of madvise MADV_MERGEABLE.
229 ``ksm_merging_pages`` means a bad madvise-applied policy, so developers or
230 administrators have to rethink how to change madvise policy. Giving an example
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Dtranshuge.rst54 interface and using madvise(2) and prctl(2) system calls.
77 MADV_HUGEPAGE madvise regions.
79 Embedded systems should enable hugepages only inside madvise regions
85 madvise(MADV_HUGEPAGE) on their critical mmapped regions.
101 echo madvise >/sys/kernel/mm/transparent_hugepage/enabled
105 anonymous hugepages in case they're not immediately free to madvise
117 echo defer+madvise >/sys/kernel/mm/transparent_hugepage/defrag
118 echo madvise >/sys/kernel/mm/transparent_hugepage/defrag
134 defer+madvise
136 only for regions that have used madvise(MADV_HUGEPAGE); all
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/linux-6.6.21/tools/testing/selftests/powerpc/tm/
Dtm-signal-context-force-tm.c69 ret = madvise(ucp->uc_link, sizeof(ucontext_t), MADV_DONTNEED); in usr_signal_handler()
138 if (madvise(ss.ss_sp, SIGSTKSZ, MADV_DONTNEED)) { in tm_trap_test()
/linux-6.6.21/arch/um/os-Linux/
Dprocess.c183 err = madvise(addr, length, MADV_REMOVE); in os_drop_memory()
210 if (madvise(addr, UM_KERN_PAGE_SIZE, MADV_REMOVE) != 0) { in can_drop_memory()
/linux-6.6.21/Documentation/admin-guide/mm/damon/
Dusage.rst283 - ``willneed``: Call ``madvise()`` for the region with ``MADV_WILLNEED``.
285 - ``cold``: Call ``madvise()`` for the region with ``MADV_COLD``.
287 - ``pageout``: Call ``madvise()`` for the region with ``MADV_PAGEOUT``.
289 - ``hugepage``: Call ``madvise()`` for the region with ``MADV_HUGEPAGE``.
291 - ``nohugepage``: Call ``madvise()`` for the region with ``MADV_NOHUGEPAGE``.
642 - 0: Call ``madvise()`` for the region with ``MADV_WILLNEED``. Ignored if
644 - 1: Call ``madvise()`` for the region with ``MADV_COLD``. Ignored if
646 - 2: Call ``madvise()`` for the region with ``MADV_PAGEOUT``.
647 - 3: Call ``madvise()`` for the region with ``MADV_HUGEPAGE``. Ignored if
649 - 4: Call ``madvise()`` for the region with ``MADV_NOHUGEPAGE``. Ignored if
/linux-6.6.21/tools/testing/selftests/arm64/mte/
Dcheck_ksm_options.c116 ret = madvise(ptr, TEST_UNIT * page_sz, MADV_MERGEABLE); in check_madvise_options()
/linux-6.6.21/Documentation/translations/zh_CN/mm/
Dhwpoison.rst102 * madvise(MADV_HWPOISON, ....) (as root) - 在测试过程中Poison一个页面

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