From: Namjae Jeon <namjae.jeon@xxxxxxxxxxx>
Add tracepoints for tracing the garbage collector
threads in f2fs with status of collection & type.
Signed-off-by: Namjae Jeon <namjae.jeon@xxxxxxxxxxx>
Signed-off-by: Pankaj Kumar <pankaj.km@xxxxxxxxxxx>
Acked-by: Steven Rostedt <rostedt@xxxxxxxxxxx>
---
fs/f2fs/gc.c | 2 ++
include/trace/events/f2fs.h | 38 ++++++++++++++++++++++++++++++++++++++
2 files changed, 40 insertions(+)
diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c
index 37b05e1..935ca8c 100644
--- a/fs/f2fs/gc.c
+++ b/fs/f2fs/gc.c
@@ -23,6 +23,7 @@
#include "node.h"
#include "segment.h"
#include "gc.h"
+#include <trace/events/f2fs.h>
static struct kmem_cache *winode_slab;
@@ -304,6 +305,7 @@ got_it:
}
mutex_unlock(&dirty_i->seglist_lock);
+ trace_f2fs_get_victim(sbi->sb, gc_type, type, &p, sbi->cur_victim_sec);
return (p.min_segno == NULL_SEGNO) ? 0 : 1;
}
diff --git a/include/trace/events/f2fs.h b/include/trace/events/f2fs.h
index c7e71f9..57b6487 100644
--- a/include/trace/events/f2fs.h
+++ b/include/trace/events/f2fs.h
@@ -6,6 +6,7 @@
#include <linux/tracepoint.h>
+struct victim_sel_policy;
TRACE_EVENT(f2fs_sync_file_enter,
TP_PROTO(struct file *file, char advise, int datasync),
@@ -471,6 +472,43 @@ TRACE_EVENT(f2fs_get_data_block,
(unsigned long long) __entry->bh_block,
__entry->size, __entry->ret)
);
+
+TRACE_EVENT(f2fs_get_victim,
+ TP_PROTO(struct super_block *sb, int gc_type, int type,
+ struct victim_sel_policy *p, unsigned int victim),
+
+ TP_ARGS(sb, gc_type, type, p, victim),
+
+ TP_STRUCT__entry(
+ __field(dev_t, dev)
+ __field(int, gc_type)
+ __field(int, type)
+ __field(int, alloc_mode)
+ __field(int, gc_mode)
+ __field(unsigned int, ofs_unit)
+ __field(unsigned int, min_segno)
+ __field(unsigned int, victim)
+ ),
+
+ TP_fast_assign(
+ __entry->dev = sb->s_dev;
+ __entry->gc_type = gc_type;
+ __entry->type = type;
+ __entry->alloc_mode = p->alloc_mode;
+ __entry->gc_mode = p->gc_mode;
+ __entry->ofs_unit = p->ofs_unit;
+ __entry->min_segno = p->min_segno;
+ __entry->victim = victim;
+ ),
+
+ TP_printk("dev %d,%d GC_type %d Data type %d Alloc_mode %d Gc_mode %d "
+ "Bitmap %u Segment No %u Victim %u" ,
+ MAJOR(__entry->dev), MINOR(__entry->dev),
+ __entry->gc_type, __entry->type, __entry->alloc_mode,
+ __entry->gc_mode, __entry->ofs_unit, __entry->min_segno,
+ __entry->victim)
+);
+
#endif /* _TRACE_F2FS_H */
/* This part must be outside protection */
--
1.7.9.5
--
To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
