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Commit 92a1bf76 authored by Liu Bo's avatar Liu Bo Committed by David Sterba
Browse files

Btrfs: add 'inode' for extent map tracepoint 



'inode' is an important field for btrfs_get_extent, lets trace it.

Signed-off-by: default avatarLiu Bo <bo.li.liu@oracle.com>
Reviewed-by: default avatarDavid Sterba <dsterba@suse.com>
Signed-off-by: default avatarDavid Sterba <dsterba@suse.com>
parent ac0c7cf8

fs/btrfs/inode.c

+1 −1
Original line number Diff line number Diff line
@@ -7059,7 +7059,7 @@ struct extent_map *btrfs_get_extent(struct inode *inode, struct page *page, 
	write_unlock(&em_tree->lock);

out:



	trace_btrfs_get_extent(root, em);

	trace_btrfs_get_extent(root, inode, em);



	btrfs_free_path(path);

	if (trans) {

include/trace/events/btrfs.h

+8 −4
Original line number Diff line number Diff line
@@ -184,14 +184,16 @@ DEFINE_EVENT(btrfs__inode, btrfs_inode_evict, 


TRACE_EVENT_CONDITION(btrfs_get_extent,



	TP_PROTO(struct btrfs_root *root, struct extent_map *map),

	TP_PROTO(struct btrfs_root *root, struct inode *inode,

		 struct extent_map *map),



	TP_ARGS(root, map),

	TP_ARGS(root, inode, map),



	TP_CONDITION(map),



	TP_STRUCT__entry_btrfs(

		__field(	u64,  root_objectid	)

		__field(	u64,  ino		)

		__field(	u64,  start		)

		__field(	u64,  len		)

		__field(	u64,  orig_start	)
@@ -204,6 +206,7 @@ TRACE_EVENT_CONDITION(btrfs_get_extent, 


	TP_fast_assign_btrfs(root->fs_info,

		__entry->root_objectid	= root->root_key.objectid;

		__entry->ino		= btrfs_ino(inode);

		__entry->start		= map->start;

		__entry->len		= map->len;

		__entry->orig_start	= map->orig_start;
@@ -214,11 +217,12 @@ TRACE_EVENT_CONDITION(btrfs_get_extent, 
		__entry->compress_type	= map->compress_type;

	),



	TP_printk_btrfs("root = %llu(%s), start = %llu, len = %llu, "

	TP_printk_btrfs("root = %llu(%s), ino = %llu start = %llu, len = %llu, "

		  "orig_start = %llu, block_start = %llu(%s), "

		  "block_len = %llu, flags = %s, refs = %u, "

		  "compress_type = %u",

		  show_root_type(__entry->root_objectid),

		  (unsigned long long)__entry->ino,

		  (unsigned long long)__entry->start,

		  (unsigned long long)__entry->len,

		  (unsigned long long)__entry->orig_start,