mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2025-01-07 06:14:24 +08:00
98931dd95f
file-backed transparent hugepages.
Johannes Weiner has arranged for zswap memory use to be tracked and
managed on a per-cgroup basis.
Munchun Song adds a /proc knob ("hugetlb_optimize_vmemmap") for runtime
enablement of the recent huge page vmemmap optimization feature.
Baolin Wang contributes a series to fix some issues around hugetlb
pagetable invalidation.
Zhenwei Pi has fixed some interactions between hwpoisoned pages and
virtualization.
Tong Tiangen has enabled the use of the presently x86-only
page_table_check debugging feature on arm64 and riscv.
David Vernet has done some fixup work on the memcg selftests.
Peter Xu has taught userfaultfd to handle write protection faults against
shmem- and hugetlbfs-backed files.
More DAMON development from SeongJae Park - adding online tuning of the
feature and support for monitoring of fixed virtual address ranges. Also
easier discovery of which monitoring operations are available.
Nadav Amit has done some optimization of TLB flushing during mprotect().
Neil Brown continues to labor away at improving our swap-over-NFS support.
David Hildenbrand has some fixes to anon page COWing versus
get_user_pages().
Peng Liu fixed some errors in the core hugetlb code.
Joao Martins has reduced the amount of memory consumed by device-dax's
compound devmaps.
Some cleanups of the arch-specific pagemap code from Anshuman Khandual.
Muchun Song has found and fixed some errors in the TLB flushing of
transparent hugepages.
Roman Gushchin has done more work on the memcg selftests.
And, of course, many smaller fixes and cleanups. Notably, the customary
million cleanup serieses from Miaohe Lin.
-----BEGIN PGP SIGNATURE-----
iHUEABYKAB0WIQTTMBEPP41GrTpTJgfdBJ7gKXxAjgUCYo52xQAKCRDdBJ7gKXxA
jtJFAQD238KoeI9z5SkPMaeBRYSRQmNll85mxs25KapcEgWgGQD9FAb7DJkqsIVk
PzE+d9hEfirUGdL6cujatwJ6ejYR8Q8=
=nFe6
-----END PGP SIGNATURE-----
Merge tag 'mm-stable-2022-05-25' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull MM updates from Andrew Morton:
"Almost all of MM here. A few things are still getting finished off,
reviewed, etc.
- Yang Shi has improved the behaviour of khugepaged collapsing of
readonly file-backed transparent hugepages.
- Johannes Weiner has arranged for zswap memory use to be tracked and
managed on a per-cgroup basis.
- Munchun Song adds a /proc knob ("hugetlb_optimize_vmemmap") for
runtime enablement of the recent huge page vmemmap optimization
feature.
- Baolin Wang contributes a series to fix some issues around hugetlb
pagetable invalidation.
- Zhenwei Pi has fixed some interactions between hwpoisoned pages and
virtualization.
- Tong Tiangen has enabled the use of the presently x86-only
page_table_check debugging feature on arm64 and riscv.
- David Vernet has done some fixup work on the memcg selftests.
- Peter Xu has taught userfaultfd to handle write protection faults
against shmem- and hugetlbfs-backed files.
- More DAMON development from SeongJae Park - adding online tuning of
the feature and support for monitoring of fixed virtual address
ranges. Also easier discovery of which monitoring operations are
available.
- Nadav Amit has done some optimization of TLB flushing during
mprotect().
- Neil Brown continues to labor away at improving our swap-over-NFS
support.
- David Hildenbrand has some fixes to anon page COWing versus
get_user_pages().
- Peng Liu fixed some errors in the core hugetlb code.
- Joao Martins has reduced the amount of memory consumed by
device-dax's compound devmaps.
- Some cleanups of the arch-specific pagemap code from Anshuman
Khandual.
- Muchun Song has found and fixed some errors in the TLB flushing of
transparent hugepages.
- Roman Gushchin has done more work on the memcg selftests.
... and, of course, many smaller fixes and cleanups. Notably, the
customary million cleanup serieses from Miaohe Lin"
* tag 'mm-stable-2022-05-25' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (381 commits)
mm: kfence: use PAGE_ALIGNED helper
selftests: vm: add the "settings" file with timeout variable
selftests: vm: add "test_hmm.sh" to TEST_FILES
selftests: vm: check numa_available() before operating "merge_across_nodes" in ksm_tests
selftests: vm: add migration to the .gitignore
selftests/vm/pkeys: fix typo in comment
ksm: fix typo in comment
selftests: vm: add process_mrelease tests
Revert "mm/vmscan: never demote for memcg reclaim"
mm/kfence: print disabling or re-enabling message
include/trace/events/percpu.h: cleanup for "percpu: improve percpu_alloc_percpu event trace"
include/trace/events/mmflags.h: cleanup for "tracing: incorrect gfp_t conversion"
mm: fix a potential infinite loop in start_isolate_page_range()
MAINTAINERS: add Muchun as co-maintainer for HugeTLB
zram: fix Kconfig dependency warning
mm/shmem: fix shmem folio swapoff hang
cgroup: fix an error handling path in alloc_pagecache_max_30M()
mm: damon: use HPAGE_PMD_SIZE
tracing: incorrect isolate_mote_t cast in mm_vmscan_lru_isolate
nodemask.h: fix compilation error with GCC12
...
65 lines
2.6 KiB
C
65 lines
2.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
#include <stdbool.h>
|
|
#include <stdlib.h>
|
|
|
|
#include "../kselftest.h"
|
|
|
|
#define PAGE_SIZE 4096
|
|
|
|
#define MB(x) (x << 20)
|
|
|
|
#define USEC_PER_SEC 1000000L
|
|
#define NSEC_PER_SEC 1000000000L
|
|
|
|
/*
|
|
* Checks if two given values differ by less than err% of their sum.
|
|
*/
|
|
static inline int values_close(long a, long b, int err)
|
|
{
|
|
return abs(a - b) <= (a + b) / 100 * err;
|
|
}
|
|
|
|
extern int cg_find_unified_root(char *root, size_t len);
|
|
extern char *cg_name(const char *root, const char *name);
|
|
extern char *cg_name_indexed(const char *root, const char *name, int index);
|
|
extern char *cg_control(const char *cgroup, const char *control);
|
|
extern int cg_create(const char *cgroup);
|
|
extern int cg_destroy(const char *cgroup);
|
|
extern int cg_read(const char *cgroup, const char *control,
|
|
char *buf, size_t len);
|
|
extern int cg_read_strcmp(const char *cgroup, const char *control,
|
|
const char *expected);
|
|
extern int cg_read_strstr(const char *cgroup, const char *control,
|
|
const char *needle);
|
|
extern long cg_read_long(const char *cgroup, const char *control);
|
|
long cg_read_key_long(const char *cgroup, const char *control, const char *key);
|
|
extern long cg_read_lc(const char *cgroup, const char *control);
|
|
extern int cg_write(const char *cgroup, const char *control, char *buf);
|
|
int cg_write_numeric(const char *cgroup, const char *control, long value);
|
|
extern int cg_run(const char *cgroup,
|
|
int (*fn)(const char *cgroup, void *arg),
|
|
void *arg);
|
|
extern int cg_enter(const char *cgroup, int pid);
|
|
extern int cg_enter_current(const char *cgroup);
|
|
extern int cg_enter_current_thread(const char *cgroup);
|
|
extern int cg_run_nowait(const char *cgroup,
|
|
int (*fn)(const char *cgroup, void *arg),
|
|
void *arg);
|
|
extern int get_temp_fd(void);
|
|
extern int alloc_pagecache(int fd, size_t size);
|
|
extern int alloc_anon(const char *cgroup, void *arg);
|
|
extern int is_swap_enabled(void);
|
|
extern int set_oom_adj_score(int pid, int score);
|
|
extern int cg_wait_for_proc_count(const char *cgroup, int count);
|
|
extern int cg_killall(const char *cgroup);
|
|
int proc_mount_contains(const char *option);
|
|
extern ssize_t proc_read_text(int pid, bool thread, const char *item, char *buf, size_t size);
|
|
extern int proc_read_strstr(int pid, bool thread, const char *item, const char *needle);
|
|
extern pid_t clone_into_cgroup(int cgroup_fd);
|
|
extern int clone_reap(pid_t pid, int options);
|
|
extern int clone_into_cgroup_run_wait(const char *cgroup);
|
|
extern int dirfd_open_opath(const char *dir);
|
|
extern int cg_prepare_for_wait(const char *cgroup);
|
|
extern int memcg_prepare_for_wait(const char *cgroup);
|
|
extern int cg_wait_for(int fd);
|