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printk/cache: mark printk_once test variable __read_mostly
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>
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3 changed files with 13 additions and 11 deletions
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#ifndef __LINUX_CACHE_H
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#define __LINUX_CACHE_H
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#include <linux/kernel.h>
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#include <uapi/linux/kernel.h>
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#include <asm/cache.h>
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#ifndef L1_CACHE_ALIGN
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#define L1_CACHE_ALIGN(x) ALIGN(x, L1_CACHE_BYTES)
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#define L1_CACHE_ALIGN(x) __ALIGN_KERNEL(x, L1_CACHE_BYTES)
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#endif
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#ifndef SMP_CACHE_BYTES
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