The patch titled
Subject: mm: memcontrol: use node page state naming scheme for memcg
has been added to the -mm tree. Its filename is
mm-memcontrol-use-node-page-state-naming-scheme-for-memcg.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-memcontrol-use-node-page-state-naming-scheme-for-memcg.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-memcontrol-use-node-page-state-naming-scheme-for-memcg.patch
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*** Remember to use Documentation/SubmitChecklist when testing your code ***
The -mm tree is included into linux-next and is updated
there every 3-4 working days
------------------------------------------------------
From: Johannes Weiner <hannes@xxxxxxxxxxx>
Subject: mm: memcontrol: use node page state naming scheme for memcg
The memory controllers stat function names are awkwardly long and
arbitrarily different from the zone and node stat functions.
The current interface is named:
mem_cgroup_read_stat()
mem_cgroup_update_stat()
mem_cgroup_inc_stat()
mem_cgroup_dec_stat()
mem_cgroup_update_page_stat()
mem_cgroup_inc_page_stat()
mem_cgroup_dec_page_stat()
This patch renames it to match the corresponding node stat functions:
memcg_page_state() [node_page_state()]
mod_memcg_state() [mod_node_state()]
inc_memcg_state() [inc_node_state()]
dec_memcg_state() [dec_node_state()]
mod_memcg_page_state() [mod_node_page_state()]
inc_memcg_page_state() [inc_node_page_state()]
dec_memcg_page_state() [dec_node_page_state()]
Link: http://lkml.kernel.org/r/20170404220148.28338-4-hannes@xxxxxxxxxxx
Signed-off-by: Johannes Weiner <hannes@xxxxxxxxxxx>
Cc: Michal Hocko <mhocko@xxxxxxxx>
Cc: Vladimir Davydov <vdavydov.dev@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/memcontrol.h | 73 +++++++++++++++++------------------
mm/memcontrol.c | 38 +++++++++---------
mm/page-writeback.c | 10 ++--
mm/rmap.c | 4 -
mm/vmscan.c | 5 --
mm/workingset.c | 6 +-
6 files changed, 68 insertions(+), 68 deletions(-)
diff -puN include/linux/memcontrol.h~mm-memcontrol-use-node-page-state-naming-scheme-for-memcg include/linux/memcontrol.h
--- a/include/linux/memcontrol.h~mm-memcontrol-use-node-page-state-naming-scheme-for-memcg
+++ a/include/linux/memcontrol.h
@@ -472,8 +472,8 @@ extern int do_swap_account;
void lock_page_memcg(struct page *page);
void unlock_page_memcg(struct page *page);
-static inline unsigned long mem_cgroup_read_stat(struct mem_cgroup *memcg,
- enum memcg_stat_item idx)
+static inline unsigned long memcg_page_state(struct mem_cgroup *memcg,
+ enum memcg_stat_item idx)
{
long val = 0;
int cpu;
@@ -487,27 +487,27 @@ static inline unsigned long mem_cgroup_r
return val;
}
-static inline void mem_cgroup_update_stat(struct mem_cgroup *memcg,
- enum memcg_stat_item idx, int val)
+static inline void mod_memcg_state(struct mem_cgroup *memcg,
+ enum memcg_stat_item idx, int val)
{
if (!mem_cgroup_disabled())
this_cpu_add(memcg->stat->count[idx], val);
}
-static inline void mem_cgroup_inc_stat(struct mem_cgroup *memcg,
- enum memcg_stat_item idx)
+static inline void inc_memcg_state(struct mem_cgroup *memcg,
+ enum memcg_stat_item idx)
{
- mem_cgroup_update_stat(memcg, idx, 1);
+ mod_memcg_state(memcg, idx, 1);
}
-static inline void mem_cgroup_dec_stat(struct mem_cgroup *memcg,
- enum memcg_stat_item idx)
+static inline void dec_memcg_state(struct mem_cgroup *memcg,
+ enum memcg_stat_item idx)
{
- mem_cgroup_update_stat(memcg, idx, -1);
+ mod_memcg_state(memcg, idx, -1);
}
/**
- * mem_cgroup_update_page_stat - update page state statistics
+ * mod_memcg_page_state - update page state statistics
* @page: the page
* @idx: page state item to account
* @val: number of pages (positive or negative)
@@ -518,28 +518,28 @@ static inline void mem_cgroup_dec_stat(s
*
* lock_page(page) or lock_page_memcg(page)
* if (TestClearPageState(page))
- * mem_cgroup_update_page_stat(page, state, -1);
+ * mod_memcg_page_state(page, state, -1);
* unlock_page(page) or unlock_page_memcg(page)
*
* Kernel pages are an exception to this, since they'll never move.
*/
-static inline void mem_cgroup_update_page_stat(struct page *page,
- enum memcg_stat_item idx, int val)
+static inline void mod_memcg_page_state(struct page *page,
+ enum memcg_stat_item idx, int val)
{
if (page->mem_cgroup)
- mem_cgroup_update_stat(page->mem_cgroup, idx, val);
+ mod_memcg_state(page->mem_cgroup, idx, val);
}
-static inline void mem_cgroup_inc_page_stat(struct page *page,
- enum memcg_stat_item idx)
+static inline void inc_memcg_page_state(struct page *page,
+ enum memcg_stat_item idx)
{
- mem_cgroup_update_page_stat(page, idx, 1);
+ mod_memcg_page_state(page, idx, 1);
}
-static inline void mem_cgroup_dec_page_stat(struct page *page,
- enum memcg_stat_item idx)
+static inline void dec_memcg_page_state(struct page *page,
+ enum memcg_stat_item idx)
{
- mem_cgroup_update_page_stat(page, idx, -1);
+ mod_memcg_page_state(page, idx, -1);
}
unsigned long mem_cgroup_soft_limit_reclaim(pg_data_t *pgdat, int order,
@@ -739,40 +739,41 @@ static inline bool mem_cgroup_oom_synchr
return false;
}
-static inline unsigned long mem_cgroup_read_stat(struct mem_cgroup *memcg,
- enum mem_cgroup_stat_index idx)
+static inline unsigned long memcg_page_state(struct mem_cgroup *memcg,
+ enum memcg_stat_item idx)
{
return 0;
}
-static inline void mem_cgroup_update_stat(struct mem_cgroup *memcg,
- enum memcg_stat_item idx, int val)
+static inline void mod_memcg_state(struct mem_cgroup *memcg,
+ enum memcg_stat_item idx,
+ int nr)
{
}
-static inline void mem_cgroup_inc_stat(struct mem_cgroup *memcg,
- enum memcg_stat_item idx)
+static inline void inc_memcg_state(struct mem_cgroup *memcg,
+ enum memcg_stat_item idx)
{
}
-static inline void mem_cgroup_dec_stat(struct mem_cgroup *memcg,
- enum memcg_stat_item idx)
+static inline void dec_memcg_state(struct mem_cgroup *memcg,
+ enum memcg_stat_item idx)
{
}
-static inline void mem_cgroup_update_page_stat(struct page *page,
- enum memcg_stat_item idx,
- int nr)
+static inline void mod_memcg_page_state(struct page *page,
+ enum memcg_stat_item idx,
+ int nr)
{
}
-static inline void mem_cgroup_inc_page_stat(struct page *page,
- enum memcg_stat_item idx)
+static inline void inc_memcg_page_state(struct page *page,
+ enum memcg_stat_item idx)
{
}
-static inline void mem_cgroup_dec_page_stat(struct page *page,
- enum memcg_stat_item idx)
+static inline void dec_memcg_page_state(struct page *page,
+ enum memcg_stat_item idx)
{
}
diff -puN mm/memcontrol.c~mm-memcontrol-use-node-page-state-naming-scheme-for-memcg mm/memcontrol.c
--- a/mm/memcontrol.c~mm-memcontrol-use-node-page-state-naming-scheme-for-memcg
+++ a/mm/memcontrol.c
@@ -552,8 +552,8 @@ mem_cgroup_largest_soft_limit_node(struc
* implemented.
*/
-static unsigned long mem_cgroup_read_events(struct mem_cgroup *memcg,
- enum memcg_event_item event)
+static unsigned long memcg_sum_events(struct mem_cgroup *memcg,
+ enum memcg_event_item event)
{
unsigned long val = 0;
int cpu;
@@ -1180,7 +1180,7 @@ void mem_cgroup_print_oom_info(struct me
if (memcg1_stats[i] == MEMCG_SWAP && !do_swap_account)
continue;
pr_cont(" %s:%luKB", memcg1_stat_names[i],
- K(mem_cgroup_read_stat(iter, memcg1_stats[i])));
+ K(memcg_page_state(iter, memcg1_stats[i])));
}
for (i = 0; i < NR_LRU_LISTS; i++)
@@ -2713,7 +2713,7 @@ static void tree_stat(struct mem_cgroup
for_each_mem_cgroup_tree(iter, memcg) {
for (i = 0; i < MEMCG_NR_STAT; i++)
- stat[i] += mem_cgroup_read_stat(iter, i);
+ stat[i] += memcg_page_state(iter, i);
}
}
@@ -2726,7 +2726,7 @@ static void tree_events(struct mem_cgrou
for_each_mem_cgroup_tree(iter, memcg) {
for (i = 0; i < MEMCG_NR_EVENTS; i++)
- events[i] += mem_cgroup_read_events(iter, i);
+ events[i] += memcg_sum_events(iter, i);
}
}
@@ -2738,10 +2738,10 @@ static unsigned long mem_cgroup_usage(st
struct mem_cgroup *iter;
for_each_mem_cgroup_tree(iter, memcg) {
- val += mem_cgroup_read_stat(iter, MEMCG_CACHE);
- val += mem_cgroup_read_stat(iter, MEMCG_RSS);
+ val += memcg_page_state(iter, MEMCG_CACHE);
+ val += memcg_page_state(iter, MEMCG_RSS);
if (swap)
- val += mem_cgroup_read_stat(iter, MEMCG_SWAP);
+ val += memcg_page_state(iter, MEMCG_SWAP);
}
} else {
if (!swap)
@@ -3145,13 +3145,13 @@ static int memcg_stat_show(struct seq_fi
if (memcg1_stats[i] == MEMCG_SWAP && !do_memsw_account())
continue;
seq_printf(m, "%s %lu\n", memcg1_stat_names[i],
- mem_cgroup_read_stat(memcg, memcg1_stats[i]) *
+ memcg_page_state(memcg, memcg1_stats[i]) *
PAGE_SIZE);
}
for (i = 0; i < ARRAY_SIZE(memcg1_events); i++)
seq_printf(m, "%s %lu\n", memcg1_event_names[i],
- mem_cgroup_read_events(memcg, memcg1_events[i]));
+ memcg_sum_events(memcg, memcg1_events[i]));
for (i = 0; i < NR_LRU_LISTS; i++)
seq_printf(m, "%s %lu\n", mem_cgroup_lru_names[i],
@@ -3175,7 +3175,7 @@ static int memcg_stat_show(struct seq_fi
if (memcg1_stats[i] == MEMCG_SWAP && !do_memsw_account())
continue;
for_each_mem_cgroup_tree(mi, memcg)
- val += mem_cgroup_read_stat(mi, memcg1_stats[i]) *
+ val += memcg_page_state(mi, memcg1_stats[i]) *
PAGE_SIZE;
seq_printf(m, "total_%s %llu\n", memcg1_stat_names[i], val);
}
@@ -3184,7 +3184,7 @@ static int memcg_stat_show(struct seq_fi
unsigned long long val = 0;
for_each_mem_cgroup_tree(mi, memcg)
- val += mem_cgroup_read_events(mi, memcg1_events[i]);
+ val += memcg_sum_events(mi, memcg1_events[i]);
seq_printf(m, "total_%s %llu\n", memcg1_event_names[i], val);
}
@@ -3650,10 +3650,10 @@ void mem_cgroup_wb_stats(struct bdi_writ
struct mem_cgroup *memcg = mem_cgroup_from_css(wb->memcg_css);
struct mem_cgroup *parent;
- *pdirty = mem_cgroup_read_stat(memcg, NR_FILE_DIRTY);
+ *pdirty = memcg_page_state(memcg, NR_FILE_DIRTY);
/* this should eventually include NR_UNSTABLE_NFS */
- *pwriteback = mem_cgroup_read_stat(memcg, NR_WRITEBACK);
+ *pwriteback = memcg_page_state(memcg, NR_WRITEBACK);
*pfilepages = mem_cgroup_nr_lru_pages(memcg, (1 << LRU_INACTIVE_FILE) |
(1 << LRU_ACTIVE_FILE));
*pheadroom = PAGE_COUNTER_MAX;
@@ -4515,7 +4515,7 @@ static int mem_cgroup_move_account(struc
/*
* move_lock grabbed above and caller set from->moving_account, so
- * mem_cgroup_update_page_stat() will serialize updates to PageDirty.
+ * mod_memcg_page_state will serialize updates to PageDirty.
* So mapping should be stable for dirty pages.
*/
if (!anon && PageDirty(page)) {
@@ -5161,10 +5161,10 @@ static int memory_events_show(struct seq
{
struct mem_cgroup *memcg = mem_cgroup_from_css(seq_css(m));
- seq_printf(m, "low %lu\n", mem_cgroup_read_events(memcg, MEMCG_LOW));
- seq_printf(m, "high %lu\n", mem_cgroup_read_events(memcg, MEMCG_HIGH));
- seq_printf(m, "max %lu\n", mem_cgroup_read_events(memcg, MEMCG_MAX));
- seq_printf(m, "oom %lu\n", mem_cgroup_read_events(memcg, MEMCG_OOM));
+ seq_printf(m, "low %lu\n", memcg_sum_events(memcg, MEMCG_LOW));
+ seq_printf(m, "high %lu\n", memcg_sum_events(memcg, MEMCG_HIGH));
+ seq_printf(m, "max %lu\n", memcg_sum_events(memcg, MEMCG_MAX));
+ seq_printf(m, "oom %lu\n", memcg_sum_events(memcg, MEMCG_OOM));
return 0;
}
diff -puN mm/page-writeback.c~mm-memcontrol-use-node-page-state-naming-scheme-for-memcg mm/page-writeback.c
--- a/mm/page-writeback.c~mm-memcontrol-use-node-page-state-naming-scheme-for-memcg
+++ a/mm/page-writeback.c
@@ -2427,7 +2427,7 @@ void account_page_dirtied(struct page *p
inode_attach_wb(inode, page);
wb = inode_to_wb(inode);
- mem_cgroup_inc_page_stat(page, NR_FILE_DIRTY);
+ inc_memcg_page_state(page, NR_FILE_DIRTY);
__inc_node_page_state(page, NR_FILE_DIRTY);
__inc_zone_page_state(page, NR_ZONE_WRITE_PENDING);
__inc_node_page_state(page, NR_DIRTIED);
@@ -2449,7 +2449,7 @@ void account_page_cleaned(struct page *p
struct bdi_writeback *wb)
{
if (mapping_cap_account_dirty(mapping)) {
- mem_cgroup_dec_page_stat(page, NR_FILE_DIRTY);
+ dec_memcg_page_state(page, NR_FILE_DIRTY);
dec_node_page_state(page, NR_FILE_DIRTY);
dec_zone_page_state(page, NR_ZONE_WRITE_PENDING);
dec_wb_stat(wb, WB_RECLAIMABLE);
@@ -2706,7 +2706,7 @@ int clear_page_dirty_for_io(struct page
*/
wb = unlocked_inode_to_wb_begin(inode, &locked);
if (TestClearPageDirty(page)) {
- mem_cgroup_dec_page_stat(page, NR_FILE_DIRTY);
+ dec_memcg_page_state(page, NR_FILE_DIRTY);
dec_node_page_state(page, NR_FILE_DIRTY);
dec_zone_page_state(page, NR_ZONE_WRITE_PENDING);
dec_wb_stat(wb, WB_RECLAIMABLE);
@@ -2753,7 +2753,7 @@ int test_clear_page_writeback(struct pag
ret = TestClearPageWriteback(page);
}
if (ret) {
- mem_cgroup_dec_page_stat(page, NR_WRITEBACK);
+ dec_memcg_page_state(page, NR_WRITEBACK);
dec_node_page_state(page, NR_WRITEBACK);
dec_zone_page_state(page, NR_ZONE_WRITE_PENDING);
inc_node_page_state(page, NR_WRITTEN);
@@ -2808,7 +2808,7 @@ int __test_set_page_writeback(struct pag
ret = TestSetPageWriteback(page);
}
if (!ret) {
- mem_cgroup_inc_page_stat(page, NR_WRITEBACK);
+ inc_memcg_page_state(page, NR_WRITEBACK);
inc_node_page_state(page, NR_WRITEBACK);
inc_zone_page_state(page, NR_ZONE_WRITE_PENDING);
}
diff -puN mm/rmap.c~mm-memcontrol-use-node-page-state-naming-scheme-for-memcg mm/rmap.c
--- a/mm/rmap.c~mm-memcontrol-use-node-page-state-naming-scheme-for-memcg
+++ a/mm/rmap.c
@@ -1158,7 +1158,7 @@ void page_add_file_rmap(struct page *pag
goto out;
}
__mod_node_page_state(page_pgdat(page), NR_FILE_MAPPED, nr);
- mem_cgroup_update_page_stat(page, NR_FILE_MAPPED, nr);
+ mod_memcg_page_state(page, NR_FILE_MAPPED, nr);
out:
unlock_page_memcg(page);
}
@@ -1198,7 +1198,7 @@ static void page_remove_file_rmap(struct
* pte lock(a spinlock) is held, which implies preemption disabled.
*/
__mod_node_page_state(page_pgdat(page), NR_FILE_MAPPED, -nr);
- mem_cgroup_update_page_stat(page, NR_FILE_MAPPED, -nr);
+ mod_memcg_page_state(page, NR_FILE_MAPPED, -nr);
if (unlikely(PageMlocked(page)))
clear_page_mlock(page);
diff -puN mm/vmscan.c~mm-memcontrol-use-node-page-state-naming-scheme-for-memcg mm/vmscan.c
--- a/mm/vmscan.c~mm-memcontrol-use-node-page-state-naming-scheme-for-memcg
+++ a/mm/vmscan.c
@@ -2046,7 +2046,7 @@ static bool inactive_list_is_low(struct
active = lruvec_lru_size(lruvec, active_lru, sc->reclaim_idx);
if (memcg)
- refaults = mem_cgroup_read_stat(memcg, WORKINGSET_ACTIVATE);
+ refaults = memcg_page_state(memcg, WORKINGSET_ACTIVATE);
else
refaults = node_page_state(pgdat, WORKINGSET_ACTIVATE);
@@ -2733,8 +2733,7 @@ static void snapshot_refaults(struct mem
struct lruvec *lruvec;
if (memcg)
- refaults = mem_cgroup_read_stat(memcg,
- WORKINGSET_ACTIVATE);
+ refaults = memcg_page_state(memcg, WORKINGSET_ACTIVATE);
else
refaults = node_page_state(pgdat, WORKINGSET_ACTIVATE);
diff -puN mm/workingset.c~mm-memcontrol-use-node-page-state-naming-scheme-for-memcg mm/workingset.c
--- a/mm/workingset.c~mm-memcontrol-use-node-page-state-naming-scheme-for-memcg
+++ a/mm/workingset.c
@@ -289,11 +289,11 @@ bool workingset_refault(void *shadow)
refault_distance = (refault - eviction) & EVICTION_MASK;
inc_node_state(pgdat, WORKINGSET_REFAULT);
- mem_cgroup_inc_stat(memcg, WORKINGSET_REFAULT);
+ inc_memcg_state(memcg, WORKINGSET_REFAULT);
if (refault_distance <= active_file) {
inc_node_state(pgdat, WORKINGSET_ACTIVATE);
- mem_cgroup_inc_stat(memcg, WORKINGSET_ACTIVATE);
+ inc_memcg_state(memcg, WORKINGSET_ACTIVATE);
rcu_read_unlock();
return true;
}
@@ -475,7 +475,7 @@ static enum lru_status shadow_lru_isolat
if (WARN_ON_ONCE(node->exceptional))
goto out_invalid;
inc_node_state(page_pgdat(virt_to_page(node)), WORKINGSET_NODERECLAIM);
- mem_cgroup_inc_page_stat(virt_to_page(node), WORKINGSET_NODERECLAIM);
+ inc_memcg_page_state(virt_to_page(node), WORKINGSET_NODERECLAIM);
__radix_tree_delete_node(&mapping->page_tree, node,
workingset_update_node, mapping);
_
Patches currently in -mm which might be from hannes@xxxxxxxxxxx are
mm-fix-100%-cpu-kswapd-busyloop-on-unreclaimable-nodes.patch
mm-fix-100%-cpu-kswapd-busyloop-on-unreclaimable-nodes-fix.patch
mm-fix-check-for-reclaimable-pages-in-pf_memalloc-reclaim-throttling.patch
mm-remove-seemingly-spurious-reclaimability-check-from-laptop_mode-gating.patch
mm-remove-unnecessary-reclaimability-check-from-numa-balancing-target.patch
mm-dont-avoid-high-priority-reclaim-on-unreclaimable-nodes.patch
mm-dont-avoid-high-priority-reclaim-on-memcg-limit-reclaim.patch
mm-delete-nr_pages_scanned-and-pgdat_reclaimable.patch
revert-mm-vmscan-account-for-skipped-pages-as-a-partial-scan.patch
mm-remove-unnecessary-back-off-function-when-retrying-page-reclaim.patch
mm-memcontrol-provide-shmem-statistics.patch
mm-page_alloc-__gfp_nowarn-shouldnt-suppress-stall-warnings.patch
mm-vmscan-fix-io-refault-regression-in-cache-workingset-transition.patch
mm-memcontrol-clean-up-memoryevents-counting-function.patch
mm-memcontrol-re-use-global-vm-event-enum.patch
mm-memcontrol-re-use-node-vm-page-state-enum.patch
mm-memcontrol-use-node-page-state-naming-scheme-for-memcg.patch
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