f2fs: add trace for rb-tree extent cache ops

This patch adds trace for lookup/update/shrink/destroy ops in rb-tree extent cache.

Signed-off-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

1 files changed, 134 insertions, 0 deletions

diff --git a/include/trace/events/f2fs.h b/include/trace/events/f2fs.h
index 5422dbfaf97d..09a56dc75f8d 100644
--- a/include/trace/events/f2fs.h
+++ b/include/trace/events/f2fs.h
@@ -1011,6 +1011,140 @@ TRACE_EVENT(f2fs_issue_flush,
                 __entry->nobarrier ? "skip (nobarrier)" : "issue",
                 __entry->flush_merge ? " with flush_merge" : "")
 );
+
+TRACE_EVENT(f2fs_lookup_extent_tree_start,
+
+        TP_PROTO(struct inode *inode, unsigned int pgofs),
+
+        TP_ARGS(inode, pgofs),
+
+        TP_STRUCT__entry(
+                __field(dev_t,  dev)
+                __field(ino_t,  ino)
+                __field(unsigned int, pgofs)
+        ),
+
+        TP_fast_assign(
+                __entry->dev = inode->i_sb->s_dev;
+                __entry->ino = inode->i_ino;
+                __entry->pgofs = pgofs;
+        ),
+
+        TP_printk("dev = (%d,%d), ino = %lu, pgofs = %u",
+                show_dev_ino(__entry),
+                __entry->pgofs)
+);
+
+TRACE_EVENT_CONDITION(f2fs_lookup_extent_tree_end,
+
+        TP_PROTO(struct inode *inode, unsigned int pgofs,
+                                                struct extent_node *en),
+
+        TP_ARGS(inode, pgofs, en),
+
+        TP_CONDITION(en),
+
+        TP_STRUCT__entry(
+                __field(dev_t,  dev)
+                __field(ino_t,  ino)
+                __field(unsigned int, pgofs)
+                __field(unsigned int, fofs)
+                __field(u32, blk)
+                __field(unsigned int, len)
+        ),
+
+        TP_fast_assign(
+                __entry->dev = inode->i_sb->s_dev;
+                __entry->ino = inode->i_ino;
+                __entry->pgofs = pgofs;
+                __entry->fofs = en->ei.fofs;
+                __entry->blk = en->ei.blk;
+                __entry->len = en->ei.len;
+        ),
+
+        TP_printk("dev = (%d,%d), ino = %lu, pgofs = %u, "
+                "ext_info(fofs: %u, blk: %u, len: %u)",
+                show_dev_ino(__entry),
+                __entry->pgofs,
+                __entry->fofs,
+                __entry->blk,
+                __entry->len)
+);
+
+TRACE_EVENT(f2fs_update_extent_tree,
+
+        TP_PROTO(struct inode *inode, unsigned int pgofs, block_t blkaddr),
+
+        TP_ARGS(inode, pgofs, blkaddr),
+
+        TP_STRUCT__entry(
+                __field(dev_t,  dev)
+                __field(ino_t,  ino)
+                __field(unsigned int, pgofs)
+                __field(u32, blk)
+        ),
+
+        TP_fast_assign(
+                __entry->dev = inode->i_sb->s_dev;
+                __entry->ino = inode->i_ino;
+                __entry->pgofs = pgofs;
+                __entry->blk = blkaddr;
+        ),
+
+        TP_printk("dev = (%d,%d), ino = %lu, pgofs = %u, blkaddr = %u",
+                show_dev_ino(__entry),
+                __entry->pgofs,
+                __entry->blk)
+);
+
+TRACE_EVENT(f2fs_shrink_extent_tree,
+
+        TP_PROTO(struct f2fs_sb_info *sbi, unsigned int node_cnt,
+                                                unsigned int tree_cnt),
+
+        TP_ARGS(sbi, node_cnt, tree_cnt),
+
+        TP_STRUCT__entry(
+                __field(dev_t,  dev)
+                __field(unsigned int, node_cnt)
+                __field(unsigned int, tree_cnt)
+        ),
+
+        TP_fast_assign(
+                __entry->dev = sbi->sb->s_dev;
+                __entry->node_cnt = node_cnt;
+                __entry->tree_cnt = tree_cnt;
+        ),
+
+        TP_printk("dev = (%d,%d), shrunk: node_cnt = %u, tree_cnt = %u",
+                show_dev(__entry),
+                __entry->node_cnt,
+                __entry->tree_cnt)
+);
+
+TRACE_EVENT(f2fs_destroy_extent_tree,
+
+        TP_PROTO(struct inode *inode, unsigned int node_cnt),
+
+        TP_ARGS(inode, node_cnt),
+
+        TP_STRUCT__entry(
+                __field(dev_t,  dev)
+                __field(ino_t,  ino)
+                __field(unsigned int, node_cnt)
+        ),
+
+        TP_fast_assign(
+                __entry->dev = inode->i_sb->s_dev;
+                __entry->ino = inode->i_ino;
+                __entry->node_cnt = node_cnt;
+        ),
+
+        TP_printk("dev = (%d,%d), ino = %lu, destroyed: node_cnt = %u",
+                show_dev_ino(__entry),
+                __entry->node_cnt)
+);
+
 #endif /* _TRACE_F2FS_H */
 
  /* This part must be outside protection */