Georgi Djakov f8765be36f FROMGIT: mm/page_owner: record the timestamp of all pages during free ...

Collect the time when each allocation is freed, to help with memory
analysis with kdump/ramdump.  Add the timestamp also in the page_owner
debugfs file and print it in dump_page().

Having another timestamp when we free the page helps for debugging page
migration issues.  For example both alloc and free timestamps being the
same can gave hints that there is an issue with migrating memory, as
opposed to a page just being dropped during migration.

Link: https://lkml.kernel.org/r/20210203175905.12267-1-georgi.djakov@linaro.org
Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Bug: 178721506
(cherry picked from https://lore.kernel.org/mm-commits/20210309004326.M_rrImRZI%25akpm@linux-foundation.org/)

Signed-off-by: Chris Goldsworthy <cgoldswo@codeaurora.org>
Change-Id: I99567a372536b4541ed81378baccecc171f78a72

2021-03-30 18:46:11 +00:00

..

.gitignore

.gitignore: add SPDX License Identifier

2020-03-25 11:50:48 +01:00

active_mm.rst

docs/vm: fix 'mm_count' vs 'mm_users' counter confusion

2020-10-13 18:38:32 -07:00

arch_pgtable_helpers.rst

Documentation/mm: add descriptions for arch page table helpers

2020-08-07 11:33:23 -07:00

balance.rst

docs/vm: rename documentation files to .rst

2018-04-16 14:18:15 -06:00

cleancache.rst

docs/vm: rename documentation files to .rst

2018-04-16 14:18:15 -06:00

free_page_reporting.rst

mm/page_reporting: add free page reporting documentation

2020-04-07 10:43:39 -07:00

frontswap.rst

docs/vm: rename documentation files to .rst

2018-04-16 14:18:15 -06:00

highmem.rst

docs/vm: rename documentation files to .rst

2018-04-16 14:18:15 -06:00

hmm.rst

mm/doc: fix a literal block markup

2020-10-16 07:28:20 +02:00

hugetlbfs_reserv.rst

docs/vm: Minor editorial changes in the THP and hugetlbfs

2019-04-30 06:34:40 -06:00

hwpoison.rst

docs/vm: hwpoison.rst: Fix quote formatting

2019-06-20 14:11:32 -06:00

index.rst

docs: add some new files to their respective index.rst files

2020-09-10 10:48:20 -06:00

ksm.rst

docs: get rid of :c:type explicit declarations for structs

2020-10-15 07:49:40 +02:00

memory-model.rst

docs: get rid of :c:type explicit declarations for structs

2020-10-15 07:49:40 +02:00

mmu_notifier.rst

docs/vm: trivial fixes to several spelling mistakes

2020-10-22 16:11:04 -06:00

numa.rst

docs: cgroup-v1: add it to the admin-guide book

2019-07-15 11:03:02 -03:00

overcommit-accounting.rst

docs/vm: rename documentation files to .rst

2018-04-16 14:18:15 -06:00

page_frags.rst

docs: vm: page_frags.rst: Fix the reference of stale function

2020-05-15 11:34:55 -06:00

page_migration.rst

docs/vm: trivial fixes to several spelling mistakes

2020-10-22 16:11:04 -06:00

page_owner.rst

FROMGIT: mm/page_owner: record the timestamp of all pages during free

2021-03-30 18:46:11 +00:00

remap_file_pages.rst

docs/vm: rename documentation files to .rst

2018-04-16 14:18:15 -06:00

slub.rst

docs/vm: trivial fixes to several spelling mistakes

2020-10-22 16:11:04 -06:00

split_page_table_lock.rst

mm: treewide: clarify pgtable_page_{ctor,dtor}() naming

2019-09-26 10:10:44 -07:00

swap_numa.rst

docs/vm: rename documentation files to .rst

2018-04-16 14:18:15 -06:00

transhuge.rst

mmap locking API: convert mmap_sem comments

2020-06-09 09:39:14 -07:00

unevictable-lru.rst

docs: cgroup-v1: add it to the admin-guide book

2019-07-15 11:03:02 -03:00

z3fold.rst

docs/vm: rename documentation files to .rst

2018-04-16 14:18:15 -06:00

zsmalloc.rst

docs/vm: rename documentation files to .rst

2018-04-16 14:18:15 -06:00

zswap.rst

zswap: docs/vm: Fix typo accept_threshold_percent in zswap.rst

2020-06-01 09:33:23 -06:00