Should this go through the XFS tree, or should I take it? -- Steve On Mon, 16 Jun 2025 13:51:46 -0400 Steven Rostedt <rostedt@xxxxxxxxxxx> wrote: > Trace events take up to 5K in memory for text and meta data. I have code that > will trigger a warning when it detects unused tracepoints[1]. The XFS file > system contains many events that are not called. Most of them used to be called > but due to code refactoring the calls were removed but the trace events stayed > behind. > > Some events were added but never used. If they were recent, I just reported > them, but if they were older, this series simply removes them. > > One is called only when CONFIG_COMPACT is defined, so an #ifdef was placed > around it. > > Finally, one event is supposed to be a trace event class, but was created with > the TRACE_EVENT() macro and not the DECLARE_EVENT_CLASS() macro. This works > because a TRACE_EVENT() is simply a DECLARE_EVENT_CLASS() and DEFINE_EVENT() > where the class and event have the same name. But as this was a mistake, the > event created should not exist. > > [1] https://patchwork.kernel.org/project/linux-trace-kernel/cover/20250612235827.011358765@xxxxxxxxxxx/ > > Changes since v1: https://lore.kernel.org/linux-trace-kernel/20250612212405.877692069@xxxxxxxxxxx/ > > - Removed the first patch that mistakenly removed xfs_reflink_cow_found > > - Change subjects to start with lowercase > > - Removed xfs_attr events that are used in an #if 0 section instead of > adding #if 0 around them > > - I added: Reviewed-by: Christoph Hellwig <hch@xxxxxx> > to all patches but the one with the modified #if 0 as Christoph > said he looked at them all. > > Steven Rostedt (13): > xfs: remove unused trace event xfs_attr_remove_iter_return > xfs: remove unused event xlog_iclog_want_sync > xfs: remove unused event xfs_ioctl_clone > xfs: remove unused xfs_reflink_compare_extents events > xfs: remove unused trace event xfs_attr_rmtval_set > xfs: remove unused xfs_attr events > xfs: remove unused event xfs_attr_node_removename > xfs: remove unused event xfs_alloc_near_error > xfs: remove unused event xfs_alloc_near_nominleft > xfs: remove unused event xfs_pagecache_inval > xfs: remove usused xfs_end_io_direct events > xfs: only create event xfs_file_compat_ioctl when CONFIG_COMPAT is configure > xfs: change xfs_xattr_class from a TRACE_EVENT() to DECLARE_EVENT_CLASS() > > ---- > fs/xfs/scrub/trace.h | 2 +- > fs/xfs/xfs_trace.h | 68 ++-------------------------------------------------- > 2 files changed, 3 insertions(+), 67 deletions(-)
