f2fs: check the largest extent at look-up time

Because of the extent shrinker or other -ENOMEM scenarios, it cannot guarantee
that the largest extent would be cached in the tree all the time.

Instead of relying on extent_tree, we can simply check the cached one in extent
tree accordingly.

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

1 files changed, 6 insertions, 6 deletions

diff --git a/include/trace/events/f2fs.h b/include/trace/events/f2fs.h
index 04856a2d8c82..a01946514b5a 100644
--- a/include/trace/events/f2fs.h
+++ b/include/trace/events/f2fs.h
@@ -1099,11 +1099,11 @@ TRACE_EVENT(f2fs_lookup_extent_tree_start,
 TRACE_EVENT_CONDITION(f2fs_lookup_extent_tree_end,
 
         TP_PROTO(struct inode *inode, unsigned int pgofs,
-                                                struct extent_node *en),
+                                                struct extent_info *ei),
 
-        TP_ARGS(inode, pgofs, en),
+        TP_ARGS(inode, pgofs, ei),
 
-        TP_CONDITION(en),
+        TP_CONDITION(ei),
 
         TP_STRUCT__entry(
                 __field(dev_t,  dev)
@@ -1118,9 +1118,9 @@ TRACE_EVENT_CONDITION(f2fs_lookup_extent_tree_end,
                 __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;
+                __entry->fofs = ei->fofs;
+                __entry->blk = ei->blk;
+                __entry->len = ei->len;
         ),
 
         TP_printk("dev = (%d,%d), ino = %lu, pgofs = %u, "