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/linux-6.15/Documentation/admin-guide/cgroup-v1/
H A Dhugetlb.rst37 hugetlb.1GB.limit_in_bytes
39 hugetlb.1GB.numa_stat
40 hugetlb.1GB.usage_in_bytes
41 hugetlb.1GB.failcnt
45 hugetlb.1GB.rsvd.failcnt
48 hugetlb.64KB.numa_stat
50 hugetlb.64KB.failcnt
54 hugetlb.64KB.rsvd.failcnt
57 hugetlb.32MB.numa_stat
59 hugetlb.32MB.failcnt
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H A Dindex.rst17 hugetlb
/linux-6.15/tools/testing/selftests/mm/
H A Duffd-wp-mremap.c98 if (hugetlb) { in alloc_one_folio()
256 bool hugetlb; member
266 .hugetlb = false,
273 .hugetlb = false,
280 .hugetlb = false,
287 .hugetlb = false,
296 .hugetlb = false,
303 .hugetlb = false,
310 .hugetlb = false,
326 .hugetlb = true,
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H A Dcharge_reserved_hugetlb.sh41 mount -t cgroup memory,hugetlb $cgroup_path
101 echo "$cgroup_limit" >$cgroup_path/$name/hugetlb.${MB}MB.$fault_limit_file
105 $cgroup_path/$name/hugetlb.${MB}MB.$reservation_limit_file
120 echo Waiting for hugetlb memory to get depleted.
133 echo Waiting for hugetlb memory reservation to reach size $size.
146 echo Waiting for hugetlb memory to reach size $size.
169 local hugetlb_usage=$cgroup_path/$cgroup/hugetlb.${MB}MB.$fault_usage_file
170 local reserved_usage=$cgroup_path/$cgroup/hugetlb.${MB}MB.$reservation_usage_file
301 local final_hugetlb=$(cat $cgroup_path/hugetlb_cgroup_test/hugetlb.${MB}MB.$fault_usage_file)
358 local cgroup1_hugetlb_usage=$cgroup_path/hugetlb_cgroup_test1/hugetlb.${MB}MB.$fault_usage_file
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H A D.gitignore7 hugetlb-madvise
8 hugetlb-read-hwpoison
9 hugetlb-soft-offline
H A Dhugetlb_reparenting_test.sh35 mount -t cgroup memory,hugetlb $CGROUP_ROOT
91 echo actual a hugetlb = $((${actual_a_hugetlb%% *} / 1024 / 1024)) MB
92 echo expected a hugetlb = $((${expected_a_hugetlb%% *} / 1024 / 1024)) MB
119 echo actual b hugetlb = $((${actual_b_hugetlb%% *} / 1024 / 1024)) MB
120 echo expected b hugetlb = $((${expected_b_hugetlb%% *} / 1024 / 1024)) MB
H A Drun_vmtests.sh70 - hugetlb
283 CATEGORY="hugetlb" run_test ./hugetlb-madvise
324 CATEGORY="userfaultfd" run_test ${uffd_stress_bin} hugetlb "$half_ufd_size_MB" 32
325 CATEGORY="userfaultfd" run_test ${uffd_stress_bin} hugetlb-private "$half_ufd_size_MB" 32
380 CATEGORY="hugetlb" run_test ./hugetlb-soft-offline
383 CATEGORY="hugetlb" run_test ./hugetlb-read-hwpoison
H A DMakefile62 TEST_GEN_FILES += hugetlb-madvise
63 TEST_GEN_FILES += hugetlb-read-hwpoison
64 TEST_GEN_FILES += hugetlb-soft-offline
H A Dva_high_addr_switch.sh88 ./va_high_addr_switch --run-hugetlb
H A Duffd-common.c23 static int uffd_mem_fd_create(off_t mem_size, bool hugetlb) in uffd_mem_fd_create() argument
28 if (hugetlb) in uffd_mem_fd_create()
/linux-6.15/Documentation/translations/zh_CN/mm/
H A Dhugetlbfs_reserv.rst284 助函数，该函数调用这些低级函数中的一个。这些低级函数在源代码（mm/hugetlb.c）中得到了相当好的
416 * 当cpuset被配置时，它打破了严格的hugetlb页面预留，因为计数是在一个全局变量上完
421 * hugetlb映射的语义变化是不可取的。然而，为了预留一些语义，我们退回到检查当前空闲
432 最完整的hugetlb测试集在libhugetlbfs仓库。如果你修改了任何hugetlb相关的代码，请使用
433 libhugetlbfs测试套件来检查回归情况。此外，如果你添加了任何新的hugetlb功能，请在
H A Dpage_migration.rst209 页是一个非THP和非hugetlb页，那么这个计数器会增加1。如果该页面是一个THP或hugetlb
210 页面，那么这个计数器会随着THP或hugetlb子页面的数量而增加。例如，迁移一个有4KB大小
214 果是THP或hugetlb，这个计数将被子页的数量增加。
/linux-6.15/mm/
H A Dhugetlb_cgroup.c248 static inline void hugetlb_event(struct hugetlb_cgroup *hugetlb, int idx, in hugetlb_event() argument
251 atomic_long_inc(&hugetlb->events_local[idx][event]); in hugetlb_event()
252 cgroup_file_notify(&hugetlb->events_local_file[idx]); in hugetlb_event()
255 atomic_long_inc(&hugetlb->events[idx][event]); in hugetlb_event()
256 cgroup_file_notify(&hugetlb->events_file[idx]); in hugetlb_event()
257 } while ((hugetlb = parent_hugetlb_cgroup(hugetlb)) && in hugetlb_event()
258 !hugetlb_cgroup_is_root(hugetlb)); in hugetlb_event()
H A Dmemory-failure.c1402 bool hugetlb = false; in __get_hwpoison_page() local
1404 ret = get_hwpoison_hugetlb_folio(folio, &hugetlb, false); in __get_hwpoison_page()
1405 if (hugetlb) { in __get_hwpoison_page()
1501 bool hugetlb = false; in __get_unpoison_page() local
1503 ret = get_hwpoison_hugetlb_folio(folio, &hugetlb, true); in __get_unpoison_page()
1504 if (hugetlb) { in __get_unpoison_page()
2072 *hugetlb = 1; in try_memory_failure_hugetlb()
2076 *hugetlb = 0; in try_memory_failure_hugetlb()
2234 int hugetlb = 0; in memory_failure() local
2265 res = try_memory_failure_hugetlb(pfn, flags, &hugetlb); in memory_failure()
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H A DMakefile81 obj-$(CONFIG_HUGETLBFS) += hugetlb.o
H A Ddebug.c53 DEF_PAGETYPE_NAME(hugetlb),
/linux-6.15/Documentation/admin-guide/mm/
H A Dhugetlbpage.rst28 persistent hugetlb pages in the kernel's huge page pool. It also displays
62 with each hugetlb page is enabled, the number of surplus huge pages
86 hugetlb page is enabled, we can fail to free the huge pages triggered by
125 if hugepages is the first or only hugetlb command line parameter it
217 indicates that the hugetlb subsystem is allowed to try to obtain that
389 The hugetlb may be migrated between the per-node hugepages pool in the following
449 While read system calls are supported on files that reside on hugetlb
460 Users who wish to use hugetlb memory via shared memory segment should be
466 Syscalls that operate on memory backed by hugetlb pages only have their lengths
468 errno set to EINVAL or exclude hugetlb pages that extend beyond the length if
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/linux-6.15/include/linux/
H A Dcgroup_subsys.h53 SUBSYS(hugetlb)
H A Dpage-flags.h1104 FOLIO_TYPE_OPS(hugetlb, hugetlb) in FOLIO_TYPE_OPS() argument
1106 FOLIO_TEST_FLAG_FALSE(hugetlb) in FOLIO_TYPE_OPS()
H A Dhugetlb.h157 int get_hwpoison_hugetlb_folio(struct folio *folio, bool *hugetlb, bool unpoison);
426 static inline int get_hwpoison_hugetlb_folio(struct folio *folio, bool *hugetlb, bool unpoison) in get_hwpoison_hugetlb_folio() argument
/linux-6.15/Documentation/ABI/testing/
H A Dsysfs-kernel-mm-hugepages3 Contact: Nishanth Aravamudan <[email protected]>, hugetlb maintainers
/linux-6.15/Documentation/mm/
H A Dpage_migration.rst168 page was migrated. If the page was a non-THP and non-hugetlb page, then
169 this counter is increased by one. If the page was a THP or hugetlb, then
170 this counter is increased by the number of THP or hugetlb subpages.
176 if it was a THP or hugetlb.
H A Dhugetlbfs_reserv.rst235 After obtaining a new hugetlb folio, (folio)->_hugetlb_subpool is set to the
375 code (mm/hugetlb.c). These routines are::
563 * When cpuset is configured, it breaks the strict hugetlb page
573 * The change of semantics for shared hugetlb mapping with cpuset is
589 The most complete set of hugetlb tests are in the libhugetlbfs repository.
590 If you modify any hugetlb related code, use the libhugetlbfs test suite
591 to check for regressions. In addition, if you add any new hugetlb
/linux-6.15/Documentation/core-api/
H A Dmm-api.rst125 .. kernel-doc:: mm/hugetlb.c
/linux-6.15/Documentation/admin-guide/
H A Dcgroup-v2.rst1685 hugetlb
1686 Amount of memory used by hugetlb pages. This metric only shows
1687 up if hugetlb usage is accounted for in memory.current (i.e.
2708 hugetlb.<hugepagesize>.current
2709 Show current usage for "hugepagesize" hugetlb. It exists for all
2712 hugetlb.<hugepagesize>.max
2713 Set/show the hard limit of "hugepagesize" hugetlb usage.
2716 hugetlb.<hugepagesize>.events
2722 hugetlb.<hugepagesize>.events.local
2723 Similar to hugetlb.<hugepagesize>.events but the fields in the file
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