X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=kernel%2Fprofile.c;h=f89248e6d70479f73e34e78faf62fefa6fb532fe;hb=754c79768eed257dabd922b85cb9271822e50794;hp=0221a50ca867c50feda6b0f1317fd2637d41d8a6;hpb=27b030d58c8e72fc7a95187a791bd9406e350f02;p=linux-2.6

diff --git a/kernel/profile.c b/kernel/profile.c
index 0221a50ca8..f89248e6d7 100644
--- a/kernel/profile.c
+++ b/kernel/profile.c
@@ -35,11 +35,11 @@ struct profile_hit {
 #define NR_PROFILE_GRP		(NR_PROFILE_HIT/PROFILE_GRPSZ)
 
 /* Oprofile timer tick hook */
-int (*timer_hook)(struct pt_regs *);
+int (*timer_hook)(struct pt_regs *) __read_mostly;
 
 static atomic_t *prof_buffer;
 static unsigned long prof_len, prof_shift;
-static int prof_on;
+static int prof_on __read_mostly;
 static cpumask_t prof_cpu_mask = CPU_MASK_ALL;
 #ifdef CONFIG_SMP
 static DEFINE_PER_CPU(struct profile_hit *[2], cpu_profile_hits);
@@ -49,15 +49,19 @@ static DECLARE_MUTEX(profile_flip_mutex);
 
 static int __init profile_setup(char * str)
 {
+	static char __initdata schedstr[] = "schedule";
 	int par;
 
-	if (!strncmp(str, "schedule", 8)) {
+	if (!strncmp(str, schedstr, strlen(schedstr))) {
 		prof_on = SCHED_PROFILING;
-		printk(KERN_INFO "kernel schedule profiling enabled\n");
-		if (str[7] == ',')
-			str += 8;
-	}
-	if (get_option(&str,&par)) {
+		if (str[strlen(schedstr)] == ',')
+			str += strlen(schedstr) + 1;
+		if (get_option(&str, &par))
+			prof_shift = par;
+		printk(KERN_INFO
+			"kernel schedule profiling enabled (shift: %ld)\n",
+			prof_shift);
+	} else if (get_option(&str, &par)) {
 		prof_shift = par;
 		prof_on = CPU_PROFILING;
 		printk(KERN_INFO "kernel profiling enabled (shift: %ld)\n",