The patch titled
Subject: mm/memcontrol: use vmstat names for printing statistics
has been added to the -mm tree. Its filename is
mm-memcontrol-use-vmstat-names-for-printing-statistics.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-memcontrol-use-vmstat-names-for-printing-statistics.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-memcontrol-use-vmstat-names-for-printing-statistics.patch
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*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***
The -mm tree is included into linux-next and is updated
there every 3-4 working days
------------------------------------------------------
From: Konstantin Khlebnikov <khlebnikov@xxxxxxxxxxxxxx>
Subject: mm/memcontrol: use vmstat names for printing statistics
Use common names from vmstat array when possible.
This gives not much difference in code size for now,
but should help in keeping interfaces consistent.
add/remove: 0/2 grow/shrink: 2/0 up/down: 70/-72 (-2)
Function old new delta
memory_stat_format 984 1050 +66
memcg_stat_show 957 961 +4
memcg1_event_names 32 - -32
mem_cgroup_lru_names 40 - -40
Total: Before=14485337, After=14485335, chg -0.00%
Link: http://lkml.kernel.org/r/157113012508.453.80391533767219371.stgit@buzz
Signed-off-by: Konstantin Khlebnikov <khlebnikov@xxxxxxxxxxxxxx>
Cc: Michal Hocko <mhocko@xxxxxxxxxx>
Cc: Vladimir Davydov <vdavydov.dev@xxxxxxxxx>
Cc: Johannes Weiner <hannes@xxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/vmstat.h | 4 +--
mm/memcontrol.c | 52 ++++++++++++++++-----------------------
mm/vmstat.c | 9 +++---
3 files changed, 29 insertions(+), 36 deletions(-)
--- a/include/linux/vmstat.h~mm-memcontrol-use-vmstat-names-for-printing-statistics
+++ a/include/linux/vmstat.h
@@ -420,7 +420,7 @@ static inline const char *writeback_stat
item];
}
-#ifdef CONFIG_VM_EVENT_COUNTERS
+#if defined(CONFIG_VM_EVENT_COUNTERS) || defined(CONFIG_MEMCG)
static inline const char *vm_event_name(enum vm_event_item item)
{
return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
@@ -429,6 +429,6 @@ static inline const char *vm_event_name(
NR_VM_WRITEBACK_STAT_ITEMS +
item];
}
-#endif /* CONFIG_VM_EVENT_COUNTERS */
+#endif /* CONFIG_VM_EVENT_COUNTERS || CONFIG_MEMCG */
#endif /* _LINUX_VMSTAT_H */
--- a/mm/memcontrol.c~mm-memcontrol-use-vmstat-names-for-printing-statistics
+++ a/mm/memcontrol.c
@@ -98,14 +98,6 @@ static bool do_memsw_account(void)
return !cgroup_subsys_on_dfl(memory_cgrp_subsys) && do_swap_account;
}
-static const char *const mem_cgroup_lru_names[] = {
- "inactive_anon",
- "active_anon",
- "inactive_file",
- "active_file",
- "unevictable",
-};
-
#define THRESHOLDS_EVENTS_TARGET 128
#define SOFTLIMIT_EVENTS_TARGET 1024
#define NUMAINFO_EVENTS_TARGET 1024
@@ -1434,7 +1426,7 @@ static char *memory_stat_format(struct m
PAGE_SIZE);
for (i = 0; i < NR_LRU_LISTS; i++)
- seq_buf_printf(&s, "%s %llu\n", mem_cgroup_lru_names[i],
+ seq_buf_printf(&s, "%s %llu\n", lru_list_name(i),
(u64)memcg_page_state(memcg, NR_LRU_BASE + i) *
PAGE_SIZE);
@@ -1447,8 +1439,10 @@ static char *memory_stat_format(struct m
/* Accumulated memory events */
- seq_buf_printf(&s, "pgfault %lu\n", memcg_events(memcg, PGFAULT));
- seq_buf_printf(&s, "pgmajfault %lu\n", memcg_events(memcg, PGMAJFAULT));
+ seq_buf_printf(&s, "%s %lu\n", vm_event_name(PGFAULT),
+ memcg_events(memcg, PGFAULT));
+ seq_buf_printf(&s, "%s %lu\n", vm_event_name(PGMAJFAULT),
+ memcg_events(memcg, PGMAJFAULT));
seq_buf_printf(&s, "workingset_refault %lu\n",
memcg_page_state(memcg, WORKINGSET_REFAULT));
@@ -1457,22 +1451,27 @@ static char *memory_stat_format(struct m
seq_buf_printf(&s, "workingset_nodereclaim %lu\n",
memcg_page_state(memcg, WORKINGSET_NODERECLAIM));
- seq_buf_printf(&s, "pgrefill %lu\n", memcg_events(memcg, PGREFILL));
+ seq_buf_printf(&s, "%s %lu\n", vm_event_name(PGREFILL),
+ memcg_events(memcg, PGREFILL));
seq_buf_printf(&s, "pgscan %lu\n",
memcg_events(memcg, PGSCAN_KSWAPD) +
memcg_events(memcg, PGSCAN_DIRECT));
seq_buf_printf(&s, "pgsteal %lu\n",
memcg_events(memcg, PGSTEAL_KSWAPD) +
memcg_events(memcg, PGSTEAL_DIRECT));
- seq_buf_printf(&s, "pgactivate %lu\n", memcg_events(memcg, PGACTIVATE));
- seq_buf_printf(&s, "pgdeactivate %lu\n", memcg_events(memcg, PGDEACTIVATE));
- seq_buf_printf(&s, "pglazyfree %lu\n", memcg_events(memcg, PGLAZYFREE));
- seq_buf_printf(&s, "pglazyfreed %lu\n", memcg_events(memcg, PGLAZYFREED));
+ seq_buf_printf(&s, "%s %lu\n", vm_event_name(PGACTIVATE),
+ memcg_events(memcg, PGACTIVATE));
+ seq_buf_printf(&s, "%s %lu\n", vm_event_name(PGDEACTIVATE),
+ memcg_events(memcg, PGDEACTIVATE));
+ seq_buf_printf(&s, "%s %lu\n", vm_event_name(PGLAZYFREE),
+ memcg_events(memcg, PGLAZYFREE));
+ seq_buf_printf(&s, "%s %lu\n", vm_event_name(PGLAZYFREED),
+ memcg_events(memcg, PGLAZYFREED));
#ifdef CONFIG_TRANSPARENT_HUGEPAGE
- seq_buf_printf(&s, "thp_fault_alloc %lu\n",
+ seq_buf_printf(&s, "%s %lu\n", vm_event_name(THP_FAULT_ALLOC),
memcg_events(memcg, THP_FAULT_ALLOC));
- seq_buf_printf(&s, "thp_collapse_alloc %lu\n",
+ seq_buf_printf(&s, "%s %lu\n", vm_event_name(THP_COLLAPSE_ALLOC),
memcg_events(memcg, THP_COLLAPSE_ALLOC));
#endif /* CONFIG_TRANSPARENT_HUGEPAGE */
@@ -3844,13 +3843,6 @@ static const unsigned int memcg1_events[
PGMAJFAULT,
};
-static const char *const memcg1_event_names[] = {
- "pgpgin",
- "pgpgout",
- "pgfault",
- "pgmajfault",
-};
-
static int memcg_stat_show(struct seq_file *m, void *v)
{
struct mem_cgroup *memcg = mem_cgroup_from_seq(m);
@@ -3859,7 +3851,6 @@ static int memcg_stat_show(struct seq_fi
unsigned int i;
BUILD_BUG_ON(ARRAY_SIZE(memcg1_stat_names) != ARRAY_SIZE(memcg1_stats));
- BUILD_BUG_ON(ARRAY_SIZE(mem_cgroup_lru_names) != NR_LRU_LISTS);
for (i = 0; i < ARRAY_SIZE(memcg1_stats); i++) {
if (memcg1_stats[i] == MEMCG_SWAP && !do_memsw_account())
@@ -3870,11 +3861,11 @@ static int memcg_stat_show(struct seq_fi
}
for (i = 0; i < ARRAY_SIZE(memcg1_events); i++)
- seq_printf(m, "%s %lu\n", memcg1_event_names[i],
+ seq_printf(m, "%s %lu\n", vm_event_name(memcg1_events[i]),
memcg_events_local(memcg, memcg1_events[i]));
for (i = 0; i < NR_LRU_LISTS; i++)
- seq_printf(m, "%s %lu\n", mem_cgroup_lru_names[i],
+ seq_printf(m, "%s %lu\n", lru_list_name(i),
memcg_page_state_local(memcg, NR_LRU_BASE + i) *
PAGE_SIZE);
@@ -3899,11 +3890,12 @@ static int memcg_stat_show(struct seq_fi
}
for (i = 0; i < ARRAY_SIZE(memcg1_events); i++)
- seq_printf(m, "total_%s %llu\n", memcg1_event_names[i],
+ seq_printf(m, "total_%s %llu\n",
+ vm_event_name(memcg1_events[i]),
(u64)memcg_events(memcg, memcg1_events[i]));
for (i = 0; i < NR_LRU_LISTS; i++)
- seq_printf(m, "total_%s %llu\n", mem_cgroup_lru_names[i],
+ seq_printf(m, "total_%s %llu\n", lru_list_name(i),
(u64)memcg_page_state(memcg, NR_LRU_BASE + i) *
PAGE_SIZE);
--- a/mm/vmstat.c~mm-memcontrol-use-vmstat-names-for-printing-statistics
+++ a/mm/vmstat.c
@@ -1084,7 +1084,8 @@ int fragmentation_index(struct zone *zon
}
#endif
-#if defined(CONFIG_PROC_FS) || defined(CONFIG_SYSFS) || defined(CONFIG_NUMA)
+#if defined(CONFIG_PROC_FS) || defined(CONFIG_SYSFS) || \
+ defined(CONFIG_NUMA) || defined(CONFIG_MEMCG)
#ifdef CONFIG_ZONE_DMA
#define TEXT_FOR_DMA(xx) xx "_dma",
#else
@@ -1172,7 +1173,7 @@ const char * const vmstat_text[] = {
"nr_dirty_threshold",
"nr_dirty_background_threshold",
-#ifdef CONFIG_VM_EVENT_COUNTERS
+#if defined(CONFIG_VM_EVENT_COUNTERS) || defined(CONFIG_MEMCG)
/* enum vm_event_item counters */
"pgpgin",
"pgpgout",
@@ -1291,9 +1292,9 @@ const char * const vmstat_text[] = {
"swap_ra",
"swap_ra_hit",
#endif
-#endif /* CONFIG_VM_EVENTS_COUNTERS */
+#endif /* CONFIG_VM_EVENT_COUNTERS || CONFIG_MEMCG */
};
-#endif /* CONFIG_PROC_FS || CONFIG_SYSFS || CONFIG_NUMA */
+#endif /* CONFIG_PROC_FS || CONFIG_SYSFS || CONFIG_NUMA || CONFIG_MEMCG */
#if (defined(CONFIG_DEBUG_FS) && defined(CONFIG_COMPACTION)) || \
defined(CONFIG_PROC_FS)
_
Patches currently in -mm which might be from khlebnikov@xxxxxxxxxxxxxx are
mm-vmstat-add-helpers-to-get-vmstat-item-names-for-each-enum-type.patch
mm-memcontrol-use-vmstat-names-for-printing-statistics.patch
mm-swap-piggyback-lru_add_drain_all-calls.patch
