X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=arch%2Fpowerpc%2Fplatforms%2Fpseries%2Frtasd.c;h=7d3e2b0bd4d299d5f467fde2a014dec0fb835fdb;hb=2a5f2e3e6cd1ce9fb3f8b186b6bc9aa1f1497a92;hp=30925d29bcead9e896c3109177fce633c8c7d883;hpb=35438c4327df18dbf5e7f597b69299119f4a14de;p=linux-2.6

diff --git a/arch/powerpc/platforms/pseries/rtasd.c b/arch/powerpc/platforms/pseries/rtasd.c
index 30925d29bc..7d3e2b0bd4 100644
--- a/arch/powerpc/platforms/pseries/rtasd.c
+++ b/arch/powerpc/platforms/pseries/rtasd.c
@@ -29,11 +29,6 @@
 #include <asm/atomic.h>
 #include <asm/machdep.h>
 
-#if 0
-#define DEBUG(A...)	printk(KERN_ERR A)
-#else
-#define DEBUG(A...)
-#endif
 
 static DEFINE_SPINLOCK(rtasd_log_lock);
 
@@ -54,8 +49,9 @@ static unsigned int rtas_event_scan_rate;
 static int full_rtas_msgs = 0;
 
 /* Stop logging to nvram after first fatal error */
-static int no_more_logging;
-
+static int logging_enabled; /* Until we initialize everything,
+                             * make sure we don't try logging
+                             * anything */
 static int error_log_cnt;
 
 /*
@@ -197,7 +193,7 @@ void pSeries_log_error(char *buf, unsigned int err_type, int fatal)
 	unsigned long s;
 	int len = 0;
 
-	DEBUG("logging event\n");
+	pr_debug("rtasd: logging event\n");
 	if (buf == NULL)
 		return;
 
@@ -217,7 +213,7 @@ void pSeries_log_error(char *buf, unsigned int err_type, int fatal)
 	}
 
 	/* Write error to NVRAM */
-	if (!no_more_logging && !(err_type & ERR_FLAG_BOOT))
+	if (logging_enabled && !(err_type & ERR_FLAG_BOOT))
 		nvram_write_error_log(buf, len, err_type, error_log_cnt);
 
 	/*
@@ -229,8 +225,8 @@ void pSeries_log_error(char *buf, unsigned int err_type, int fatal)
 		printk_log_rtas(buf, len);
 
 	/* Check to see if we need to or have stopped logging */
-	if (fatal || no_more_logging) {
-		no_more_logging = 1;
+	if (fatal || !logging_enabled) {
+		logging_enabled = 0;
 		spin_unlock_irqrestore(&rtasd_log_lock, s);
 		return;
 	}
@@ -302,7 +298,7 @@ static ssize_t rtas_log_read(struct file * file, char __user * buf,
 
 	spin_lock_irqsave(&rtasd_log_lock, s);
 	/* if it's 0, then we know we got the last one (the one in NVRAM) */
-	if (rtas_log_size == 0 && !no_more_logging)
+	if (rtas_log_size == 0 && logging_enabled)
 		nvram_clear_error_log();
 	spin_unlock_irqrestore(&rtasd_log_lock, s);
 
@@ -381,7 +377,7 @@ static void do_event_scan_all_cpus(long delay)
 {
 	int cpu;
 
-	lock_cpu_hotplug();
+	get_online_cpus();
 	cpu = first_cpu(cpu_online_map);
 	for (;;) {
 		set_cpus_allowed(current, cpumask_of_cpu(cpu));
@@ -389,15 +385,15 @@ static void do_event_scan_all_cpus(long delay)
 		set_cpus_allowed(current, CPU_MASK_ALL);
 
 		/* Drop hotplug lock, and sleep for the specified delay */
-		unlock_cpu_hotplug();
+		put_online_cpus();
 		msleep_interruptible(delay);
-		lock_cpu_hotplug();
+		get_online_cpus();
 
 		cpu = next_cpu(cpu, cpu_online_map);
 		if (cpu == NR_CPUS)
 			break;
 	}
-	unlock_cpu_hotplug();
+	put_online_cpus();
 }
 
 static int rtasd(void *unused)
@@ -408,12 +404,15 @@ static int rtasd(void *unused)
 	daemonize("rtasd");
 
 	printk(KERN_DEBUG "RTAS daemon started\n");
-	DEBUG("will sleep for %d milliseconds\n", (30000/rtas_event_scan_rate));
+	pr_debug("rtasd: will sleep for %d milliseconds\n",
+		 (30000 / rtas_event_scan_rate));
 
 	/* See if we have any error stored in NVRAM */
 	memset(logdata, 0, rtas_error_log_max);
 	rc = nvram_read_error_log(logdata, rtas_error_log_max,
 	                          &err_type, &error_log_cnt);
+	/* We can use rtas_log_buf now */
+	logging_enabled = 1;
 
 	if (!rc) {
 		if (err_type != ERR_FLAG_ALREADY_LOGGED) {
@@ -425,9 +424,9 @@ static int rtasd(void *unused)
 	do_event_scan_all_cpus(1000);
 
 	if (surveillance_timeout != -1) {
-		DEBUG("enabling surveillance\n");
+		pr_debug("rtasd: enabling surveillance\n");
 		enable_surveillance(surveillance_timeout);
-		DEBUG("surveillance enabled\n");
+		pr_debug("rtasd: surveillance enabled\n");
 	}
 
 	/* Delay should be at least one second since some
@@ -469,10 +468,9 @@ static int __init rtas_init(void)
 		return -ENOMEM;
 	}
 
-	entry = create_proc_entry("ppc64/rtas/error_log", S_IRUSR, NULL);
-	if (entry)
-		entry->proc_fops = &proc_rtas_log_operations;
-	else
+	entry = proc_create("ppc64/rtas/error_log", S_IRUSR, NULL,
+			    &proc_rtas_log_operations);
+	if (!entry)
 		printk(KERN_ERR "Failed to create error_log proc entry\n");
 
 	if (kernel_thread(rtasd, NULL, CLONE_FS) < 0)