linux/kernel/power
Roman Gushchin d42f3245c7 mm: memcg: convert vmstat slab counters to bytes
In order to prepare for per-object slab memory accounting, convert
NR_SLAB_RECLAIMABLE and NR_SLAB_UNRECLAIMABLE vmstat items to bytes.

To make it obvious, rename them to NR_SLAB_RECLAIMABLE_B and
NR_SLAB_UNRECLAIMABLE_B (similar to NR_KERNEL_STACK_KB).

Internally global and per-node counters are stored in pages, however memcg
and lruvec counters are stored in bytes.  This scheme may look weird, but
only for now.  As soon as slab pages will be shared between multiple
cgroups, global and node counters will reflect the total number of slab
pages.  However memcg and lruvec counters will be used for per-memcg slab
memory tracking, which will take separate kernel objects in the account.
Keeping global and node counters in pages helps to avoid additional
overhead.

The size of slab memory shouldn't exceed 4Gb on 32-bit machines, so it
will fit into atomic_long_t we use for vmstats.

Signed-off-by: Roman Gushchin <guro@fb.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Shakeel Butt <shakeelb@google.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Christoph Lameter <cl@linux.com>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Tejun Heo <tj@kernel.org>
Link: http://lkml.kernel.org/r/20200623174037.3951353-4-guro@fb.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-08-07 11:33:24 -07:00
..
autosleep.c PM / wakeup: Show wakeup sources stats in sysfs 2019-08-21 00:20:40 +02:00
console.c
energy_model.c PM / EM: remove em_register_perf_domain 2020-06-24 17:16:42 +02:00
hibernate.c PM: hibernate: fix white space in a few places 2020-07-14 19:25:41 +02:00
Kconfig treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
main.c PM: sleep: Add pm_debug_messages kernel command line option 2020-04-02 15:29:56 +02:00
Makefile PM: hibernate: Split off snapshot dev option 2020-05-19 17:48:08 +02:00
power.h PM: sleep: spread "const char *" correctness 2020-07-14 19:25:41 +02:00
poweroff.c kernel/power: constify sysrq_key_op 2020-05-15 14:53:20 +02:00
process.c PM / sleep: Show freezing tasks that caused a suspend abort 2018-09-10 12:09:10 +02:00
qos.c PM: QoS: annotate data races in pm_qos_*_value() 2020-03-03 23:34:51 +01:00
snapshot.c mm: memcg: convert vmstat slab counters to bytes 2020-08-07 11:33:24 -07:00
suspend_test.c PM: sleep: Switch to rtc_time64_to_tm()/rtc_tm_to_time64() 2019-12-20 09:58:08 +01:00
suspend.c ACPI: PM: s2idle: Avoid possible race related to the EC GPE 2020-02-11 10:11:02 +01:00
swap.c PM: hibernate: Add __init annotation to swsusp_header_init() 2020-06-05 13:52:38 +02:00
user.c PM: hibernate: Restrict writes to the resume device 2020-05-27 17:55:59 +02:00
wakelock.c PM / wakeup: Show wakeup sources stats in sysfs 2019-08-21 00:20:40 +02:00