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Subject[PATCH 01/16] init: trivial tweaks to initcall_levels
Date
From: Jim Cromie <jim.cromie@gmail.com>

add a pr_info to print current level and level_name of initcall,
and number of registered initcalls at that level. This adds 7
lines to dmesg output, like:
initlevel:6=device, 172 registered initcalls

Drop "parameters" from initcall_level_names[], it can be added
back in the printk where it clarifies things.

Signed-off-by: Jim Cromie <jim.cromie@gmail.com>
---
init/main.c | 25 +++++++++++++++----------
1 files changed, 15 insertions(+), 10 deletions(-)
diff --git a/init/main.c b/init/main.c
index 4397158..09f3105 100644
--- a/init/main.c
+++ b/init/main.c
@@ -723,14 +723,14 @@ static initcall_t *initcall_levels[] __initdata = {
};

static char *initcall_level_names[] __initdata = {
- "early parameters",
- "core parameters",
- "postcore parameters",
- "arch parameters",
- "subsys parameters",
- "fs parameters",
- "device parameters",
- "late parameters",
+ "early",
+ "core",
+ "postcore",
+ "arch",
+ "subsys",
+ "fs",
+ "device",
+ "late",
};

static int __init ignore_unknown_bootoption(char *param, char *val)
@@ -748,7 +748,7 @@ static void __init do_initcall_level(int level)
static_command_line, __start___param,
__stop___param - __start___param,
level, level,
- ignore_unknown_bootoption);
+ &ignore_unknown_bootoption);

for (fn = initcall_levels[level]; fn < initcall_levels[level+1]; fn++)
do_one_initcall(*fn);
@@ -758,8 +758,13 @@ static void __init do_initcalls(void)
{
int level;

- for (level = 0; level < ARRAY_SIZE(initcall_levels) - 1; level++)
+ for (level = 0; level < ARRAY_SIZE(initcall_levels) - 1; level++) {
+ pr_info("initlevel:%d=%s, %d registered initcalls\n",
+ level, initcall_level_names[level],
+ (int) (initcall_levels[level+1]
+ - initcall_levels[level]));
do_initcall_level(level);
+ }
}

/*
--
1.7.7.6


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