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From: Attilio Rao <attilio@FreeBSD.org>
Date: Tue, 19 Jul 2011 14:58:00 +0000 (UTC)
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Subject: svn commit: r224218 - in head/sys: kern sys
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Author: attilio
Date: Tue Jul 19 14:57:59 2011
New Revision: 224218
URL: http://svn.freebsd.org/changeset/base/224218

Log:
  Remove pc_name member of struct pcpu.
  pc_name is only included when KTR option is and it does introduce a
  subdle KBI breakage that totally breaks vmstat when world and kernel are
  not in sync.
  Besides, it is not used somewhere.
  
  In collabouration with:	pluknet
  Reviewed by:	jhb
  Approved by:	re (kib)

Modified:
  head/sys/kern/subr_pcpu.c
  head/sys/sys/pcpu.h

Modified: head/sys/kern/subr_pcpu.c
==============================================================================
--- head/sys/kern/subr_pcpu.c	Tue Jul 19 13:00:30 2011	(r224217)
+++ head/sys/kern/subr_pcpu.c	Tue Jul 19 14:57:59 2011	(r224218)
@@ -92,9 +92,6 @@ pcpu_init(struct pcpu *pcpu, int cpuid, 
 	cpu_pcpu_init(pcpu, cpuid, size);
 	pcpu->pc_rm_queue.rmq_next = &pcpu->pc_rm_queue;
 	pcpu->pc_rm_queue.rmq_prev = &pcpu->pc_rm_queue;
-#ifdef KTR
-	snprintf(pcpu->pc_name, sizeof(pcpu->pc_name), "CPU %d", cpuid);
-#endif
 }
 
 void

Modified: head/sys/sys/pcpu.h
==============================================================================
--- head/sys/sys/pcpu.h	Tue Jul 19 13:00:30 2011	(r224217)
+++ head/sys/sys/pcpu.h	Tue Jul 19 14:57:59 2011	(r224218)
@@ -165,9 +165,6 @@ struct pcpu {
 	u_int		pc_cpuid;		/* This cpu number */
 	STAILQ_ENTRY(pcpu) pc_allcpu;
 	struct lock_list_entry *pc_spinlocks;
-#ifdef KTR
-	char		pc_name[PCPU_NAME_LEN];	/* String name for KTR */
-#endif
 	struct vmmeter	pc_cnt;			/* VM stats counters */
 	long		pc_cp_time[CPUSTATES];	/* statclock ticks */
 	struct device	*pc_device;