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-rw-r--r--include/linux/vmstat.h11
-rw-r--r--include/trace/events/vmscan.h24
-rw-r--r--mm/vmscan.c18
3 files changed, 21 insertions, 32 deletions
diff --git a/include/linux/vmstat.h b/include/linux/vmstat.h
index a4c2317d8b9f..f25cef84b41d 100644
--- a/include/linux/vmstat.h
+++ b/include/linux/vmstat.h
@@ -20,6 +20,17 @@ extern int sysctl_vm_numa_stat_handler(struct ctl_table *table,
int write, void __user *buffer, size_t *length, loff_t *ppos);
#endif
+struct reclaim_stat {
+ unsigned nr_dirty;
+ unsigned nr_unqueued_dirty;
+ unsigned nr_congested;
+ unsigned nr_writeback;
+ unsigned nr_immediate;
+ unsigned nr_activate;
+ unsigned nr_ref_keep;
+ unsigned nr_unmap_fail;
+};
+
#ifdef CONFIG_VM_EVENT_COUNTERS
/*
* Light weight per cpu counter implementation.
diff --git a/include/trace/events/vmscan.h b/include/trace/events/vmscan.h
index 6570c5b45ba1..a1cb91342231 100644
--- a/include/trace/events/vmscan.h
+++ b/include/trace/events/vmscan.h
@@ -346,15 +346,9 @@ TRACE_EVENT(mm_vmscan_lru_shrink_inactive,
TP_PROTO(int nid,
unsigned long nr_scanned, unsigned long nr_reclaimed,
- unsigned long nr_dirty, unsigned long nr_writeback,
- unsigned long nr_congested, unsigned long nr_immediate,
- unsigned long nr_activate, unsigned long nr_ref_keep,
- unsigned long nr_unmap_fail,
- int priority, int file),
+ struct reclaim_stat *stat, int priority, int file),
- TP_ARGS(nid, nr_scanned, nr_reclaimed, nr_dirty, nr_writeback,
- nr_congested, nr_immediate, nr_activate, nr_ref_keep,
- nr_unmap_fail, priority, file),
+ TP_ARGS(nid, nr_scanned, nr_reclaimed, stat, priority, file),
TP_STRUCT__entry(
__field(int, nid)
@@ -375,13 +369,13 @@ TRACE_EVENT(mm_vmscan_lru_shrink_inactive,
__entry->nid = nid;
__entry->nr_scanned = nr_scanned;
__entry->nr_reclaimed = nr_reclaimed;
- __entry->nr_dirty = nr_dirty;
- __entry->nr_writeback = nr_writeback;
- __entry->nr_congested = nr_congested;
- __entry->nr_immediate = nr_immediate;
- __entry->nr_activate = nr_activate;
- __entry->nr_ref_keep = nr_ref_keep;
- __entry->nr_unmap_fail = nr_unmap_fail;
+ __entry->nr_dirty = stat->nr_dirty;
+ __entry->nr_writeback = stat->nr_writeback;
+ __entry->nr_congested = stat->nr_congested;
+ __entry->nr_immediate = stat->nr_immediate;
+ __entry->nr_activate = stat->nr_activate;
+ __entry->nr_ref_keep = stat->nr_ref_keep;
+ __entry->nr_unmap_fail = stat->nr_unmap_fail;
__entry->priority = priority;
__entry->reclaim_flags = trace_shrink_flags(file);
),
diff --git a/mm/vmscan.c b/mm/vmscan.c
index e411385b304a..a1d7ba0136fe 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -902,17 +902,6 @@ static void page_check_dirty_writeback(struct page *page,
mapping->a_ops->is_dirty_writeback(page, dirty, writeback);
}
-struct reclaim_stat {
- unsigned nr_dirty;
- unsigned nr_unqueued_dirty;
- unsigned nr_congested;
- unsigned nr_writeback;
- unsigned nr_immediate;
- unsigned nr_activate;
- unsigned nr_ref_keep;
- unsigned nr_unmap_fail;
-};
-
/*
* shrink_page_list() returns the number of reclaimed pages
*/
@@ -1823,12 +1812,7 @@ shrink_inactive_list(unsigned long nr_to_scan, struct lruvec *lruvec,
sc->nr.file_taken += nr_taken;
trace_mm_vmscan_lru_shrink_inactive(pgdat->node_id,
- nr_scanned, nr_reclaimed,
- stat.nr_dirty, stat.nr_writeback,
- stat.nr_congested, stat.nr_immediate,
- stat.nr_activate, stat.nr_ref_keep,
- stat.nr_unmap_fail,
- sc->priority, file);
+ nr_scanned, nr_reclaimed, &stat, sc->priority, file);
return nr_reclaimed;
}