kernel: delete __cpuinit usage from all core kernel files

The __cpuinit type of throwaway sections might have made sense
some time ago when RAM was more constrained, but now the savings
do not offset the cost and complications.  For example, the fix in
commit 5e427ec2d0 ("x86: Fix bit corruption at CPU resume time")
is a good example of the nasty type of bugs that can be created
with improper use of the various __init prefixes.

After a discussion on LKML[1] it was decided that cpuinit should go
the way of devinit and be phased out.  Once all the users are gone,
we can then finally remove the macros themselves from linux/init.h.

This removes all the uses of the __cpuinit macros from C files in
the core kernel directories (kernel, init, lib, mm, and include)
that don't really have a specific maintainer.

[1] https://lkml.org/lkml/2013/5/20/589

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 98ac17e..1501aa5 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -238,7 +238,7 @@
 	  any use of code/data previously in these sections would
 	  most likely result in an oops.
 	  In the code, functions and variables are annotated with
-	  __init, __cpuinit, etc. (see the full list in include/linux/init.h),
+	  __init,, etc. (see the full list in include/linux/init.h),
 	  which results in the code/data being placed in specific sections.
 	  The section mismatch analysis is always performed after a full
 	  kernel build, and enabling this option causes the following
diff --git a/lib/earlycpio.c b/lib/earlycpio.c
index 8078ef4..7aa7ce2 100644
--- a/lib/earlycpio.c
+++ b/lib/earlycpio.c
@@ -63,7 +63,7 @@
  *          the match returned an empty filename string.
  */
 
-struct cpio_data __cpuinit find_cpio_data(const char *path, void *data,
+struct cpio_data find_cpio_data(const char *path, void *data,
 					  size_t len,  long *offset)
 {
 	const size_t cpio_header_len = 8*C_NFIELDS - 2;
diff --git a/lib/percpu_counter.c b/lib/percpu_counter.c
index 1fc23a3..93c5d5e 100644
--- a/lib/percpu_counter.c
+++ b/lib/percpu_counter.c
@@ -158,7 +158,7 @@
 	percpu_counter_batch = max(32, nr*2);
 }
 
-static int __cpuinit percpu_counter_hotcpu_callback(struct notifier_block *nb,
+static int percpu_counter_hotcpu_callback(struct notifier_block *nb,
 					unsigned long action, void *hcpu)
 {
 #ifdef CONFIG_HOTPLUG_CPU