[PATCH] slab: extract slabinfo header printing to separate function

This patch extracts slabinfo header printing to a separate function
print_slabinfo_header() to make s_start() more readable.

Signed-off-by: Matthew Dobson <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

mm/slab.c

@@ -3364,32 +3364,37 @@ static void cache_reap(void *unused)
 
 #ifdef CONFIG_PROC_FS
 
-static void *s_start(struct seq_file *m, loff_t *pos)
+static void print_slabinfo_header(struct seq_file *m)
 {
-	loff_t n = *pos;
-	struct list_head *p;
-
-	down(&cache_chain_sem);
-	if (!n) {
-		/*
-		 * Output format version, so at least we can change it
-		 * without _too_ many complaints.
-		 */
+	/*
+	 * Output format version, so at least we can change it
+	 * without _too_ many complaints.
+	 */
 #if STATS
-		seq_puts(m, "slabinfo - version: 2.1 (statistics)\n");
+	seq_puts(m, "slabinfo - version: 2.1 (statistics)\n");
 #else
-		seq_puts(m, "slabinfo - version: 2.1\n");
+	seq_puts(m, "slabinfo - version: 2.1\n");
 #endif
-		seq_puts(m, "# name            <active_objs> <num_objs> <objsize> <objperslab> <pagesperslab>");
-		seq_puts(m, " : tunables <limit> <batchcount> <sharedfactor>");
-		seq_puts(m, " : slabdata <active_slabs> <num_slabs> <sharedavail>");
+	seq_puts(m, "# name            <active_objs> <num_objs> <objsize> "
+		 "<objperslab> <pagesperslab>");
+	seq_puts(m, " : tunables <limit> <batchcount> <sharedfactor>");
+	seq_puts(m, " : slabdata <active_slabs> <num_slabs> <sharedavail>");
 #if STATS
-		seq_puts(m, " : globalstat <listallocs> <maxobjs> <grown> <reaped>"
-				" <error> <maxfreeable> <nodeallocs> <remotefrees>");
-		seq_puts(m, " : cpustat <allochit> <allocmiss> <freehit> <freemiss>");
+	seq_puts(m, " : globalstat <listallocs> <maxobjs> <grown> <reaped> "
+		 "<error> <maxfreeable> <nodeallocs> <remotefrees>");
+	seq_puts(m, " : cpustat <allochit> <allocmiss> <freehit> <freemiss>");
 #endif
-		seq_putc(m, '\n');
-	}
+	seq_putc(m, '\n');
+}
+
+static void *s_start(struct seq_file *m, loff_t *pos)
+{
+	loff_t n = *pos;
+	struct list_head *p;
+
+	down(&cache_chain_sem);
+	if (!n)
+		print_slabinfo_header(m);
 	p = cache_chain.next;
 	while (n--) {
 		p = p->next;