ext4: mballoc: correct the mb_debug() format specifier for pa_len var

pa->pa_len is an integer. Fix all of the format specifier used in
mb_debug() for pa_len to %d instead of %u.

As such no functionality change in this patch.
Signed-off-by: Ritesh Harjani <riteshh@linux.ibm.com>
Link: https://lore.kernel.org/r/af4987f643c586f62bcc9961e43f0a67151d5551.1589086800.git.riteshh@linux.ibm.comSigned-off-by: Theodore Ts'o <tytso@mit.edu>

fs/ext4/mballoc.c

@@ -3720,7 +3720,7 @@ ext4_mb_new_inode_pa(struct ext4_allocation_context *ac)
 	pa->pa_deleted = 0;
 	pa->pa_type = MB_INODE_PA;
 
-	mb_debug(1, "new inode pa %p: %llu/%u for %u\n", pa,
+	mb_debug(1, "new inode pa %p: %llu/%d for %u\n", pa,
 			pa->pa_pstart, pa->pa_len, pa->pa_lstart);
 	trace_ext4_mb_new_inode_pa(ac, pa);
 
@@ -3780,7 +3780,7 @@ ext4_mb_new_group_pa(struct ext4_allocation_context *ac)
 	pa->pa_deleted = 0;
 	pa->pa_type = MB_GROUP_PA;
 
-	mb_debug(1, "new group pa %p: %llu/%u for %u\n", pa,
+	mb_debug(1, "new group pa %p: %llu/%d for %u\n", pa,
 			pa->pa_pstart, pa->pa_len, pa->pa_lstart);
 	trace_ext4_mb_new_group_pa(ac, pa);
 
@@ -3862,10 +3862,10 @@ ext4_mb_release_inode_pa(struct ext4_buddy *e4b, struct buffer_head *bitmap_bh,
 	}
 	if (free != pa->pa_free) {
 		ext4_msg(e4b->bd_sb, KERN_CRIT,
-			 "pa %p: logic %lu, phys. %lu, len %lu",
+			 "pa %p: logic %lu, phys. %lu, len %d",
 			 pa, (unsigned long) pa->pa_lstart,
 			 (unsigned long) pa->pa_pstart,
-			 (unsigned long) pa->pa_len);
+			 pa->pa_len);
 		ext4_grp_locked_error(sb, group, 0, 0, "free %u, pa_free %u",
 					free, pa->pa_free);
 		/*
@@ -4152,7 +4152,7 @@ static inline void ext4_mb_show_pa(struct super_block *sb)
 			ext4_get_group_no_and_offset(sb, pa->pa_pstart,
 						     NULL, &start);
 			spin_unlock(&pa->pa_lock);
-			printk(KERN_ERR "PA:%u:%d:%u \n", i,
+			printk(KERN_ERR "PA:%u:%d:%d \n", i,
 			       start, pa->pa_len);
 		}
 		ext4_unlock_group(sb, i);