From: Namjae Jeon <[email protected]> Add tracepoints for tracing the garbage collector threads in f2fs with status of collection & type.
Signed-off-by: Namjae Jeon <[email protected]> Signed-off-by: Pankaj Kumar <[email protected]> Acked-by: Steven Rostedt <[email protected]> --- 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-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
