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btrfs: tracepoints: add trace event for btrfs_record_unlink_dir()

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btrfs_record_unlink_dir() is an important operation that affects inode
logging and is called during unlink and rename operations. Add a trace
event for it to help debug issues.

Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Filipe Manana
2026-05-11 15:51:13 +01:00
parent 5fe47577ad
commit bc620c48b5
2 changed files with 33 additions and 0 deletions
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2
fs/btrfs/tree-log.c
View File

@@ -7938,6 +7938,8 @@ void btrfs_record_unlink_dir(struct btrfs_trans_handle *trans,
struct btrfs_inode *dir, struct btrfs_inode *inode,
bool for_rename)
{
trace_btrfs_record_unlink_dir(trans, dir, inode, for_rename);
/*
* when we're logging a file, if it hasn't been renamed
* or unlinked, and its inode is fully committed on disk,

31
include/trace/events/btrfs.h
View File

@@ -1400,6 +1400,37 @@ TRACE_EVENT(btrfs_log_new_delayed_dentries_exit,
__entry->ino, __entry->ret)
);
TRACE_EVENT(btrfs_record_unlink_dir,
TP_PROTO(const struct btrfs_trans_handle *trans,
const struct btrfs_inode *dir,
const struct btrfs_inode *inode,
bool for_rename),
TP_ARGS(trans, dir, inode, for_rename),
TP_STRUCT__entry_btrfs(
__field( u64, root_objectid )
__field( u64, transid )
__field( u64, ino )
__field( u64, dir )
__field( bool, for_rename )
),
TP_fast_assign(
TP_fast_assign_fsid(trans->fs_info);
__entry->root_objectid = btrfs_root_id(inode->root);
__entry->transid = trans->transid;
__entry->ino = btrfs_ino(inode);
__entry->dir = btrfs_ino(dir);
__entry->for_rename = for_rename;
),
TP_printk_btrfs("root=%llu(%s) transid=%llu ino=%llu dir=%llu for_rename=%d",
show_root_type(__entry->root_objectid), __entry->transid,
__entry->ino, __entry->dir, __entry->for_rename)
);
TRACE_EVENT(btrfs_sync_fs,
TP_PROTO(const struct btrfs_fs_info *fs_info, int wait),