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printk/cache: mark printk_once test variable __read_mostly

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Add #include <linux/cache.h> to define __read_mostly.

Convert cache.h to use uapi/linux/kernel.h instead
of linux/kernel.h to avoid recursive #includes.

Convert the ALIGN macro to __ALIGN_KERNEL.

printk_once only sets the bool variable tested
once so mark it __read_mostly.

Neaten the alignment so it matches the rest of the
pr_<level>_once #defines too.

Signed-off-by: Joe Perches <joe@perches.com>
Reviewed-by: James Hogan <james.hogan@imgtec.com>
Cc: Wu Fengguang <fengguang.wu@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Joe Perches
2014-01-23 15:54:16 -08:00
committed by Linus Torvalds
parent 8f073bd0d0
commit c28aa1f0a8
3 changed files with 13 additions and 11 deletions
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4
include/linux/cache.h
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@@ -1,11 +1,11 @@
#ifndef __LINUX_CACHE_H
#define __LINUX_CACHE_H
#include <linux/kernel.h>
#include <uapi/linux/kernel.h>
#include <asm/cache.h>
#ifndef L1_CACHE_ALIGN
#define L1_CACHE_ALIGN(x) ALIGN(x, L1_CACHE_BYTES)
#define L1_CACHE_ALIGN(x) __ALIGN_KERNEL(x, L1_CACHE_BYTES)
#endif
#ifndef SMP_CACHE_BYTES