The patch titled
Subject: mm/swap.c: fold vm event PGROTATED into pagevec_move_tail_fn
has been added to the -mm tree. Its filename is
mm-swapc-fold-vm-event-pgrotated-into-pagevec_move_tail_fn.patch
This patch should soon appear at
https://ozlabs.org/~akpm/mmots/broken-out/mm-swapc-fold-vm-event-pgrotated-into-pagevec_move_tail_fn.patch
and later at
https://ozlabs.org/~akpm/mmotm/broken-out/mm-swapc-fold-vm-event-pgrotated-into-pagevec_move_tail_fn.patch
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------------------------------------------------------
From: Alex Shi <alex.shi@xxxxxxxxxxxxxxxxx>
Subject: mm/swap.c: fold vm event PGROTATED into pagevec_move_tail_fn
Fold the PGROTATED event collection into pagevec_move_tail_fn call back
func like other funcs does in pagevec_lru_move_fn. Thus we could save
func call pagevec_move_tail(). Now all usage of pagevec_lru_move_fn are
same and no needs of its 3rd parameter.
It's just simply the calling. No functional change.
[lkp@xxxxxxxxx: found a build issue in the original patch, thanks]
Link: https://lkml.kernel.org/r/1604566549-62481-10-git-send-email-alex.shi@xxxxxxxxxxxxxxxxx
Signed-off-by: Alex Shi <alex.shi@xxxxxxxxxxxxxxxxx>
Acked-by: Hugh Dickins <hughd@xxxxxxxxxx>
Acked-by: Johannes Weiner <hannes@xxxxxxxxxxx>
Cc: Alexander Duyck <alexander.duyck@xxxxxxxxx>
Cc: Andrea Arcangeli <aarcange@xxxxxxxxxx>
Cc: Andrey Ryabinin <aryabinin@xxxxxxxxxxxxx>
Cc: "Chen, Rong A" <rong.a.chen@xxxxxxxxx>
Cc: Daniel Jordan <daniel.m.jordan@xxxxxxxxxx>
Cc: "Huang, Ying" <ying.huang@xxxxxxxxx>
Cc: Jann Horn <jannh@xxxxxxxxxx>
Cc: Joonsoo Kim <iamjoonsoo.kim@xxxxxxx>
Cc: Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx>
Cc: Kirill A. Shutemov <kirill@xxxxxxxxxxxxx>
Cc: Konstantin Khlebnikov <khlebnikov@xxxxxxxxxxxxxx>
Cc: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
Cc: Mel Gorman <mgorman@xxxxxxxxxxxxxxxxxxx>
Cc: Michal Hocko <mhocko@xxxxxxxxxx>
Cc: Michal Hocko <mhocko@xxxxxxxx>
Cc: Mika Penttilä <mika.penttila@xxxxxxxxxxxx>
Cc: Minchan Kim <minchan@xxxxxxxxxx>
Cc: Shakeel Butt <shakeelb@xxxxxxxxxx>
Cc: Tejun Heo <tj@xxxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: Vladimir Davydov <vdavydov.dev@xxxxxxxxx>
Cc: Vlastimil Babka <vbabka@xxxxxxx>
Cc: Wei Yang <richard.weiyang@xxxxxxxxx>
Cc: Yang Shi <yang.shi@xxxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/swap.c | 65 ++++++++++++++++++----------------------------------
1 file changed, 23 insertions(+), 42 deletions(-)
--- a/mm/swap.c~mm-swapc-fold-vm-event-pgrotated-into-pagevec_move_tail_fn
+++ a/mm/swap.c
@@ -204,8 +204,7 @@ int get_kernel_page(unsigned long start,
EXPORT_SYMBOL_GPL(get_kernel_page);
static void pagevec_lru_move_fn(struct pagevec *pvec,
- void (*move_fn)(struct page *page, struct lruvec *lruvec, void *arg),
- void *arg)
+ void (*move_fn)(struct page *page, struct lruvec *lruvec))
{
int i;
struct pglist_data *pgdat = NULL;
@@ -224,7 +223,7 @@ static void pagevec_lru_move_fn(struct p
}
lruvec = mem_cgroup_page_lruvec(page, pgdat);
- (*move_fn)(page, lruvec, arg);
+ (*move_fn)(page, lruvec);
}
if (pgdat)
spin_unlock_irqrestore(&pgdat->lru_lock, flags);
@@ -232,35 +231,22 @@ static void pagevec_lru_move_fn(struct p
pagevec_reinit(pvec);
}
-static void pagevec_move_tail_fn(struct page *page, struct lruvec *lruvec,
- void *arg)
+static void pagevec_move_tail_fn(struct page *page, struct lruvec *lruvec)
{
- int *pgmoved = arg;
-
if (PageLRU(page) && !PageUnevictable(page)) {
del_page_from_lru_list(page, lruvec, page_lru(page));
ClearPageActive(page);
add_page_to_lru_list_tail(page, lruvec, page_lru(page));
- (*pgmoved) += thp_nr_pages(page);
+ __count_vm_events(PGROTATED, thp_nr_pages(page));
}
}
/*
- * pagevec_move_tail() must be called with IRQ disabled.
- * Otherwise this may cause nasty races.
- */
-static void pagevec_move_tail(struct pagevec *pvec)
-{
- int pgmoved = 0;
-
- pagevec_lru_move_fn(pvec, pagevec_move_tail_fn, &pgmoved);
- __count_vm_events(PGROTATED, pgmoved);
-}
-
-/*
* Writeback is about to end against a page which has been marked for immediate
* reclaim. If it still appears to be reclaimable, move it to the tail of the
* inactive list.
+ *
+ * rotate_reclaimable_page() must disable IRQs, to prevent nasty races.
*/
void rotate_reclaimable_page(struct page *page)
{
@@ -273,7 +259,7 @@ void rotate_reclaimable_page(struct page
local_lock_irqsave(&lru_rotate.lock, flags);
pvec = this_cpu_ptr(&lru_rotate.pvec);
if (!pagevec_add(pvec, page) || PageCompound(page))
- pagevec_move_tail(pvec);
+ pagevec_lru_move_fn(pvec, pagevec_move_tail_fn);
local_unlock_irqrestore(&lru_rotate.lock, flags);
}
}
@@ -315,8 +301,7 @@ void lru_note_cost_page(struct page *pag
page_is_file_lru(page), thp_nr_pages(page));
}
-static void __activate_page(struct page *page, struct lruvec *lruvec,
- void *arg)
+static void __activate_page(struct page *page, struct lruvec *lruvec)
{
if (PageLRU(page) && !PageActive(page) && !PageUnevictable(page)) {
int lru = page_lru_base_type(page);
@@ -340,7 +325,7 @@ static void activate_page_drain(int cpu)
struct pagevec *pvec = &per_cpu(lru_pvecs.activate_page, cpu);
if (pagevec_count(pvec))
- pagevec_lru_move_fn(pvec, __activate_page, NULL);
+ pagevec_lru_move_fn(pvec, __activate_page);
}
static bool need_activate_page_drain(int cpu)
@@ -358,7 +343,7 @@ static void activate_page(struct page *p
pvec = this_cpu_ptr(&lru_pvecs.activate_page);
get_page(page);
if (!pagevec_add(pvec, page) || PageCompound(page))
- pagevec_lru_move_fn(pvec, __activate_page, NULL);
+ pagevec_lru_move_fn(pvec, __activate_page);
local_unlock(&lru_pvecs.lock);
}
}
@@ -374,7 +359,7 @@ static void activate_page(struct page *p
page = compound_head(page);
spin_lock_irq(&pgdat->lru_lock);
- __activate_page(page, mem_cgroup_page_lruvec(page, pgdat), NULL);
+ __activate_page(page, mem_cgroup_page_lruvec(page, pgdat));
spin_unlock_irq(&pgdat->lru_lock);
}
#endif
@@ -525,8 +510,7 @@ void lru_cache_add_inactive_or_unevictab
* be write it out by flusher threads as this is much more effective
* than the single-page writeout from reclaim.
*/
-static void lru_deactivate_file_fn(struct page *page, struct lruvec *lruvec,
- void *arg)
+static void lru_deactivate_file_fn(struct page *page, struct lruvec *lruvec)
{
int lru;
bool active;
@@ -573,8 +557,7 @@ static void lru_deactivate_file_fn(struc
}
}
-static void lru_deactivate_fn(struct page *page, struct lruvec *lruvec,
- void *arg)
+static void lru_deactivate_fn(struct page *page, struct lruvec *lruvec)
{
if (PageLRU(page) && PageActive(page) && !PageUnevictable(page)) {
int lru = page_lru_base_type(page);
@@ -591,8 +574,7 @@ static void lru_deactivate_fn(struct pag
}
}
-static void lru_lazyfree_fn(struct page *page, struct lruvec *lruvec,
- void *arg)
+static void lru_lazyfree_fn(struct page *page, struct lruvec *lruvec)
{
if (PageLRU(page) && PageAnon(page) && PageSwapBacked(page) &&
!PageSwapCache(page) && !PageUnevictable(page)) {
@@ -636,21 +618,21 @@ void lru_add_drain_cpu(int cpu)
/* No harm done if a racing interrupt already did this */
local_lock_irqsave(&lru_rotate.lock, flags);
- pagevec_move_tail(pvec);
+ pagevec_lru_move_fn(pvec, pagevec_move_tail_fn);
local_unlock_irqrestore(&lru_rotate.lock, flags);
}
pvec = &per_cpu(lru_pvecs.lru_deactivate_file, cpu);
if (pagevec_count(pvec))
- pagevec_lru_move_fn(pvec, lru_deactivate_file_fn, NULL);
+ pagevec_lru_move_fn(pvec, lru_deactivate_file_fn);
pvec = &per_cpu(lru_pvecs.lru_deactivate, cpu);
if (pagevec_count(pvec))
- pagevec_lru_move_fn(pvec, lru_deactivate_fn, NULL);
+ pagevec_lru_move_fn(pvec, lru_deactivate_fn);
pvec = &per_cpu(lru_pvecs.lru_lazyfree, cpu);
if (pagevec_count(pvec))
- pagevec_lru_move_fn(pvec, lru_lazyfree_fn, NULL);
+ pagevec_lru_move_fn(pvec, lru_lazyfree_fn);
activate_page_drain(cpu);
}
@@ -679,7 +661,7 @@ void deactivate_file_page(struct page *p
pvec = this_cpu_ptr(&lru_pvecs.lru_deactivate_file);
if (!pagevec_add(pvec, page) || PageCompound(page))
- pagevec_lru_move_fn(pvec, lru_deactivate_file_fn, NULL);
+ pagevec_lru_move_fn(pvec, lru_deactivate_file_fn);
local_unlock(&lru_pvecs.lock);
}
}
@@ -701,7 +683,7 @@ void deactivate_page(struct page *page)
pvec = this_cpu_ptr(&lru_pvecs.lru_deactivate);
get_page(page);
if (!pagevec_add(pvec, page) || PageCompound(page))
- pagevec_lru_move_fn(pvec, lru_deactivate_fn, NULL);
+ pagevec_lru_move_fn(pvec, lru_deactivate_fn);
local_unlock(&lru_pvecs.lock);
}
}
@@ -723,7 +705,7 @@ void mark_page_lazyfree(struct page *pag
pvec = this_cpu_ptr(&lru_pvecs.lru_lazyfree);
get_page(page);
if (!pagevec_add(pvec, page) || PageCompound(page))
- pagevec_lru_move_fn(pvec, lru_lazyfree_fn, NULL);
+ pagevec_lru_move_fn(pvec, lru_lazyfree_fn);
local_unlock(&lru_pvecs.lock);
}
}
@@ -977,8 +959,7 @@ void __pagevec_release(struct pagevec *p
}
EXPORT_SYMBOL(__pagevec_release);
-static void __pagevec_lru_add_fn(struct page *page, struct lruvec *lruvec,
- void *arg)
+static void __pagevec_lru_add_fn(struct page *page, struct lruvec *lruvec)
{
enum lru_list lru;
int was_unevictable = TestClearPageUnevictable(page);
@@ -1037,7 +1018,7 @@ static void __pagevec_lru_add_fn(struct
*/
void __pagevec_lru_add(struct pagevec *pvec)
{
- pagevec_lru_move_fn(pvec, __pagevec_lru_add_fn, NULL);
+ pagevec_lru_move_fn(pvec, __pagevec_lru_add_fn);
}
/**
_
Patches currently in -mm which might be from alex.shi@xxxxxxxxxxxxxxxxx are
mm-filemap-add-static-for-function-__add_to_page_cache_locked.patch
fs-ntfs-remove-unused-varibles.patch
fs-ntfs-remove-unused-varible-attr_len.patch
mm-memcg-update-page-struct-member-in-comments.patch
mm-thp-move-lru_add_page_tail-func-to-huge_memoryc.patch
mm-thp-use-head-for-head-page-in-lru_add_page_tail.patch
mm-thp-simplify-lru_add_page_tail.patch
mm-thp-narrow-lru-locking.patch
mm-vmscan-remove-unnecessary-lruvec-adding.patch
mm-rmap-stop-store-reordering-issue-on-page-mapping.patch
mm-rmap-stop-store-reordering-issue-on-page-mapping-fix.patch
mm-memcg-add-debug-checking-in-lock_page_memcg.patch
mm-swapc-fold-vm-event-pgrotated-into-pagevec_move_tail_fn.patch
mm-lru-move-lock-into-lru_note_cost.patch
mm-vmscan-remove-lruvec-reget-in-move_pages_to_lru.patch
mm-mlock-remove-lru_lock-on-testclearpagemlocked.patch
mm-mlock-remove-__munlock_isolate_lru_page.patch
mm-lru-introduce-testclearpagelru.patch
mm-compaction-do-page-isolation-first-in-compaction.patch
mm-swapc-serialize-memcg-changes-in-pagevec_lru_move_fn.patch
mm-lru-replace-pgdat-lru_lock-with-lruvec-lock.patch
mm-lru-replace-pgdat-lru_lock-with-lruvec-lock-fix.patch
mm-lru-replace-pgdat-lru_lock-with-lruvec-lock-fix-2.patch
mm-lru-introduce-the-relock_page_lruvec-function-fix.patch
docs-vm-remove-unused-3-items-explanation-for-proc-vmstat.patch
mm-memcg-bail-early-from-swap-accounting-if-memcg-disabled.patch
mm-memcg-warning-on-memcg-after-readahead-page-charged.patch
