From f46b24c9457143a367c6707eac82d546e2bcf280 Mon Sep 17 00:00:00 2001
From: David Sterba <dsterba@suse.com>
Date: Tue, 3 Apr 2018 21:45:57 +0200
Subject: btrfs: use fs_info for btrfs_handle_em_exist tracepoint
We really want to know to which filesystem the extent map events belong,
but as it cannot be reached from the extent_map pointers, we need to
pass it down the callchain.
Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
---
fs/btrfs/extent_map.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
(limited to 'fs/btrfs/extent_map.c')
diff --git a/fs/btrfs/extent_map.c b/fs/btrfs/extent_map.c
index 1b8a078f92eb..6648d55e5339 100644
--- a/fs/btrfs/extent_map.c
+++ b/fs/btrfs/extent_map.c
@@ -518,6 +518,7 @@ static noinline int merge_extent_mapping(struct extent_map_tree *em_tree,
/**
* btrfs_add_extent_mapping - add extent mapping into em_tree
+ * @fs_info - used for tracepoint
* @em_tree - the extent tree into which we want to insert the extent mapping
* @em_in - extent we are inserting
* @start - start of the logical range btrfs_get_extent() is requesting
@@ -535,7 +536,8 @@ static noinline int merge_extent_mapping(struct extent_map_tree *em_tree,
* Return 0 on success, otherwise -EEXIST.
*
*/
-int btrfs_add_extent_mapping(struct extent_map_tree *em_tree,
+int btrfs_add_extent_mapping(struct btrfs_fs_info *fs_info,
+ struct extent_map_tree *em_tree,
struct extent_map **em_in, u64 start, u64 len)
{
int ret;
@@ -553,7 +555,7 @@ int btrfs_add_extent_mapping(struct extent_map_tree *em_tree,
existing = search_extent_mapping(em_tree, start, len);
- trace_btrfs_handle_em_exist(existing, em, start, len);
+ trace_btrfs_handle_em_exist(fs_info, existing, em, start, len);
/*
* existing will always be non-NULL, since there must be
--
cgit