f2fs: add a tracepoint for sync_dirty_inodes
This patch adds a tracepoint for sync_dirty_inodes.
Signed-off-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c
index 92ca146..2acee04 100644
--- a/fs/f2fs/checkpoint.c
+++ b/fs/f2fs/checkpoint.c
@@ -804,6 +804,11 @@
struct list_head *head;
struct inode *inode;
struct f2fs_inode_info *fi;
+ bool is_dir = (type == DIR_INODE);
+
+ trace_f2fs_sync_dirty_inodes_enter(sbi->sb, is_dir,
+ get_pages(sbi, is_dir ?
+ F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA));
retry:
if (unlikely(f2fs_cp_error(sbi)))
return;
@@ -813,6 +818,9 @@
head = &sbi->inode_list[type];
if (list_empty(head)) {
spin_unlock(&sbi->inode_lock[type]);
+ trace_f2fs_sync_dirty_inodes_exit(sbi->sb, is_dir,
+ get_pages(sbi, is_dir ?
+ F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA));
return;
}
fi = list_entry(head->next, struct f2fs_inode_info, dirty_list);
diff --git a/include/trace/events/f2fs.h b/include/trace/events/f2fs.h
index 1855020..79f872a 100644
--- a/include/trace/events/f2fs.h
+++ b/include/trace/events/f2fs.h
@@ -1227,6 +1227,44 @@
__entry->node_cnt)
);
+DECLARE_EVENT_CLASS(f2fs_sync_dirty_inodes,
+
+ TP_PROTO(struct super_block *sb, int type, int count),
+
+ TP_ARGS(sb, type, count),
+
+ TP_STRUCT__entry(
+ __field(dev_t, dev)
+ __field(int, type)
+ __field(int, count)
+ ),
+
+ TP_fast_assign(
+ __entry->dev = sb->s_dev;
+ __entry->type = type;
+ __entry->count = count;
+ ),
+
+ TP_printk("dev = (%d,%d), %s, dirty count = %d",
+ show_dev(__entry),
+ show_file_type(__entry->type),
+ __entry->count)
+);
+
+DEFINE_EVENT(f2fs_sync_dirty_inodes, f2fs_sync_dirty_inodes_enter,
+
+ TP_PROTO(struct super_block *sb, int type, int count),
+
+ TP_ARGS(sb, type, count)
+);
+
+DEFINE_EVENT(f2fs_sync_dirty_inodes, f2fs_sync_dirty_inodes_exit,
+
+ TP_PROTO(struct super_block *sb, int type, int count),
+
+ TP_ARGS(sb, type, count)
+);
+
#endif /* _TRACE_F2FS_H */
/* This part must be outside protection */