[GFS2] Audit printk and kmalloc

All printk calls now have KERN_ set where required and a couple of
kmalloc(), memset(.., 0, ...) calls changed to kzalloc().

This is in response to comments from:
Pekka Enberg <penberg@cs.helsinki.fi> and
Eric Sesterhenn <snakebyte@gmx.de>

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
diff --git a/fs/gfs2/super.c b/fs/gfs2/super.c
index be80771..60e2666 100644
--- a/fs/gfs2/super.c
+++ b/fs/gfs2/super.c
@@ -94,7 +94,7 @@
 	if (sb->sb_header.mh_magic != GFS2_MAGIC ||
 	    sb->sb_header.mh_type != GFS2_METATYPE_SB) {
 		if (!silent)
-			printk("GFS2: not a GFS2 filesystem\n");
+			printk(KERN_WARNING "GFS2: not a GFS2 filesystem\n");
 		return -EINVAL;
 	}
 
@@ -110,11 +110,11 @@
 				break;
 
 		if (!gfs2_old_fs_formats[x]) {
-			printk("GFS2: code version (%u, %u) is incompatible "
+			printk(KERN_WARNING "GFS2: code version (%u, %u) is incompatible "
 			       "with ondisk format (%u, %u)\n",
 			       GFS2_FORMAT_FS, GFS2_FORMAT_MULTI,
 			       sb->sb_fs_format, sb->sb_multihost_format);
-			printk("GFS2: I don't know how to upgrade this FS\n");
+			printk(KERN_WARNING "GFS2: I don't know how to upgrade this FS\n");
 			return -EINVAL;
 		}
 	}
@@ -125,23 +125,23 @@
 				break;
 
 		if (!gfs2_old_multihost_formats[x]) {
-			printk("GFS2: code version (%u, %u) is incompatible "
+			printk(KERN_WARNING "GFS2: code version (%u, %u) is incompatible "
 			       "with ondisk format (%u, %u)\n",
 			       GFS2_FORMAT_FS, GFS2_FORMAT_MULTI,
 			       sb->sb_fs_format, sb->sb_multihost_format);
-			printk("GFS2: I don't know how to upgrade this FS\n");
+			printk(KERN_WARNING "GFS2: I don't know how to upgrade this FS\n");
 			return -EINVAL;
 		}
 	}
 
 	if (!sdp->sd_args.ar_upgrade) {
-		printk("GFS2: code version (%u, %u) is incompatible "
+		printk(KERN_WARNING "GFS2: code version (%u, %u) is incompatible "
 		       "with ondisk format (%u, %u)\n",
 		       GFS2_FORMAT_FS, GFS2_FORMAT_MULTI,
 		       sb->sb_fs_format, sb->sb_multihost_format);
-		printk("GFS2: Use the \"upgrade\" mount option to upgrade "
+		printk(KERN_INFO "GFS2: Use the \"upgrade\" mount option to upgrade "
 		       "the FS\n");
-		printk("GFS2: See the manual for more details\n");
+		printk(KERN_INFO "GFS2: See the manual for more details\n");
 		return -EINVAL;
 	}