Commit 072e133d authored by Peter Enderborg's avatar Peter Enderborg Committed by Greg Kroah-Hartman

tracefs: Remove unnecessary debug_fs checks.

This is a preparation for debugfs restricted mode.
We don't need debugfs to trace, the removed check stop tracefs to work
if debugfs is not initialised. We instead tries to automount within
debugfs and relay on it's handling. The code path is to create a
backward compatibility from when tracefs was part of debugfs, it is now
standalone and does not need debugfs. When debugfs is in restricted
it is compiled in but not active and return EPERM to clients and
tracefs wont work if it assumes it is active it is compiled in
kernel.
Reported-by: default avatarkernel test robot <lkp@intel.com>
Signed-off-by: default avatarPeter Enderborg <peter.enderborg@sony.com>
Reviewed-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: default avatarSteven Rostedt (VMware) <rostedt@goodmis.org>
Link: https://lore.kernel.org/r/20200716071511.26864-2-peter.enderborg@sony.comSigned-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent b292b50b
...@@ -8945,9 +8945,7 @@ struct dentry *tracing_init_dentry(void) ...@@ -8945,9 +8945,7 @@ struct dentry *tracing_init_dentry(void)
if (tr->dir) if (tr->dir)
return NULL; return NULL;
if (WARN_ON(!tracefs_initialized()) || if (WARN_ON(!tracefs_initialized()))
(IS_ENABLED(CONFIG_DEBUG_FS) &&
WARN_ON(!debugfs_initialized())))
return ERR_PTR(-ENODEV); return ERR_PTR(-ENODEV);
/* /*
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment