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tracing: Remove unused trace_event_file dir field

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Now that eventfs structure is used to create the events directory via the
eventfs dynamically allocate code, the "dir" field of the trace_event_file
structure is no longer used. Remove it.

Link: https://lkml.kernel.org/r/20230908022001.580400115@goodmis.org

Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Ajay Kaher <akaher@vmware.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
This commit is contained in:
Steven Rostedt (Google) 2023-09-07 22:19:12 -04:00
parent 1ef26d8b2c
commit 6fdac58c56
2 changed files with 0 additions and 14 deletions
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1
include/linux/trace_events.h
View File

@ -650,7 +650,6 @@ struct trace_event_file {
struct trace_event_call *event_call;
struct event_filter __rcu *filter;
struct eventfs_file *ef;
struct dentry *dir;
struct trace_array *tr;
struct trace_subsystem_dir *system;
struct list_head triggers;

13
kernel/trace/trace_events.c
View File

@ -992,19 +992,6 @@ static void remove_subsystem(struct trace_subsystem_dir *dir)
static void remove_event_file_dir(struct trace_event_file *file)
{
struct dentry *dir = file->dir;
struct dentry *child;
if (dir) {
spin_lock(&dir->d_lock); /* probably unneeded */
list_for_each_entry(child, &dir->d_subdirs, d_child) {
if (d_really_is_positive(child)) /* probably unneeded */
d_inode(child)->i_private = NULL;
}
spin_unlock(&dir->d_lock);
tracefs_remove(dir);
}
eventfs_remove(file->ef);
list_del(&file->list);
remove_subsystem(file->system);