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Message-Id: <1332717954-5775-16-git-send-email-jim.cromie@gmail.com> Date: Sun, 25 Mar 2012 17:25:53 -0600 From: jim.cromie@...il.com To: jbaron@...hat.com Cc: linux-kernel@...r.kernel.org, Jim Cromie <jim.cromie@...il.com> Subject: [PATCH 15/16] dynamic_debug: init with early_initcall, not arch_initcall From: Jim Cromie <jim.cromie@...il.com> 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@...il.com> --- 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 7eb7a55..f7ba216 100644 --- a/lib/dynamic_debug.c +++ b/lib/dynamic_debug.c @@ -1037,7 +1037,7 @@ 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); -- 1.7.7.6 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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