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Revision 83bdaad4d919722744ef1b726a9913ec36c6a430 authored by Hubert Chrzaniuk on 07 March 2016, 14:30:45 UTC, committed by Borislav Petkov on 07 March 2016, 18:07:40 UTC 
EDAC, sb_edac: Fix logic when computing DIMM sizes on Xeon Phi
 
Correct a typo introduced by

  d0cdf9003140 ("EDAC, sb_edac: Add Knights Landing (Xeon Phi gen 2) support")

As a result under some configurations DIMMs were not correctly
recognized. Problem affects only Xeon Phi architecture.

Signed-off-by: Hubert Chrzaniuk <hubert.chrzaniuk@intel.com>
Acked-by: Aristeu Rozanski <aris@redhat.com>
Cc: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Cc: linux-edac <linux-edac@vger.kernel.org>
Cc: lukasz.anaczkowski@intel.com
Link: http://lkml.kernel.org/r/1457361045-26221-1-git-send-email-hubert.chrzaniuk@intel.com
Signed-off-by: Borislav Petkov <bp@suse.de>
1 parent f6cede5
Raw File
uptime.c 
#include <linux/fs.h>
#include <linux/init.h>
#include <linux/proc_fs.h>
#include <linux/sched.h>
#include <linux/seq_file.h>
#include <linux/time.h>
#include <linux/kernel_stat.h>
#include <linux/cputime.h>

static int uptime_proc_show(struct seq_file *m, void *v)
{
	struct timespec uptime;
	struct timespec idle;
	u64 idletime;
	u64 nsec;
	u32 rem;
	int i;

	idletime = 0;
	for_each_possible_cpu(i)
		idletime += (__force u64) kcpustat_cpu(i).cpustat[CPUTIME_IDLE];

	get_monotonic_boottime(&uptime);
	nsec = cputime64_to_jiffies64(idletime) * TICK_NSEC;
	idle.tv_sec = div_u64_rem(nsec, NSEC_PER_SEC, &rem);
	idle.tv_nsec = rem;
	seq_printf(m, "%lu.%02lu %lu.%02lu\n",
			(unsigned long) uptime.tv_sec,
			(uptime.tv_nsec / (NSEC_PER_SEC / 100)),
			(unsigned long) idle.tv_sec,
			(idle.tv_nsec / (NSEC_PER_SEC / 100)));
	return 0;
}

static int uptime_proc_open(struct inode *inode, struct file *file)
{
	return single_open(file, uptime_proc_show, NULL);
}

static const struct file_operations uptime_proc_fops = {
	.open		= uptime_proc_open,
	.read		= seq_read,
	.llseek		= seq_lseek,
	.release	= single_release,
};

static int __init proc_uptime_init(void)
{
	proc_create("uptime", 0, NULL, &uptime_proc_fops);
	return 0;
}
fs_initcall(proc_uptime_init);
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