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| author | Jim Cromie <jim.cromie@gmail.com> | 2012-04-27 14:30:42 -0600 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-04-30 16:26:31 -0400 |
| commit | 3ec5652ab70f6e9a888d9e5f67c858af354323b3 (patch) | |
| tree | 309ed6abea9f994da93a33576aeaf07cefe2562b /lib | |
| parent | 29e36c9ffb696ed8d73e1aee713d483ec74a9a43 (diff) | |
| download | kernel-common-3ec5652ab70f6e9a888d9e5f67c858af354323b3.tar.gz kernel-common-3ec5652ab70f6e9a888d9e5f67c858af354323b3.tar.bz2 kernel-common-3ec5652ab70f6e9a888d9e5f67c858af354323b3.zip | |
dynamic_debug: init with early_initcall, not arch_initcall
1- Call dynamic_debug_init() from early_initcall, not arch_initcall.
2- Call dynamic_debug_init_debugfs() from fs_initcall, not module_init.
RFC: This works for me on a 64 bit desktop and a i586 SBC, but is
untested on other arches. I presume there is or was a reason
original code used arch_initcall, maybe the constraints have changed.
This makes facility available as soon as possible.
2nd change has a downside when dynamic_debug.verbose=1; all the
vpr_info()s called in the proc-fs code are activated, causing
voluminous output from dmesg. TBD: Im unsure of this explanation, but
the output is there. This could be fixed by changing those callsites
to v2pr_info(if verbose > 1).
1st change is still not early enough to enable pr_debugs in
kernel/params, so parsing of boot-args isnt logged. The reparse of
those args is however visible after params.dyndbg="+p" is processed.
Signed-off-by: Jim Cromie <jim.cromie@gmail.com>
Acked-by: Jason Baron <jbaron@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/dynamic_debug.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/lib/dynamic_debug.c b/lib/dynamic_debug.c index cfd84638b1a4..7ca29a0a3019 100644 --- a/lib/dynamic_debug.c +++ b/lib/dynamic_debug.c @@ -1042,7 +1042,7 @@ out_err: return 0; } /* Allow early initialization for boot messages via boot param */ -arch_initcall(dynamic_debug_init); +early_initcall(dynamic_debug_init); /* Debugfs setup must be done later */ -module_init(dynamic_debug_init_debugfs); +fs_initcall(dynamic_debug_init_debugfs); |