1 files changed, 22 insertions, 16 deletions

diff --git a/fs/ext3/balloc.c b/fs/ext3/balloc.c
index fe52297e31ad..6386d76f44a7 100644
--- a/fs/ext3/balloc.c
+++ b/fs/ext3/balloc.c
@@ -21,6 +21,7 @@
 #include <linux/quotaops.h>
 #include <linux/buffer_head.h>
 #include <linux/blkdev.h>
+#include <trace/events/ext3.h>
 
 /*
  * balloc.c contains the blocks allocation and deallocation routines
@@ -161,6 +162,7 @@ read_block_bitmap(struct super_block *sb, unsigned int block_group)
         desc = ext3_get_group_desc(sb, block_group, NULL);
         if (!desc)
                 return NULL;
+        trace_ext3_read_block_bitmap(sb, block_group);
         bitmap_blk = le32_to_cpu(desc->bg_block_bitmap);
         bh = sb_getblk(sb, bitmap_blk);
         if (unlikely(!bh)) {
@@ -351,6 +353,7 @@ void ext3_rsv_window_add(struct super_block *sb,
         struct rb_node * parent = NULL;
         struct ext3_reserve_window_node *this;
 
+        trace_ext3_rsv_window_add(sb, rsv);
         while (*p)
         {
                 parent = *p;
@@ -476,8 +479,10 @@ void ext3_discard_reservation(struct inode *inode)
         rsv = &block_i->rsv_window_node;
         if (!rsv_is_empty(&rsv->rsv_window)) {
                 spin_lock(rsv_lock);
-                if (!rsv_is_empty(&rsv->rsv_window))
+                if (!rsv_is_empty(&rsv->rsv_window)) {
+                        trace_ext3_discard_reservation(inode, rsv);
                         rsv_window_remove(inode->i_sb, rsv);
+                }
                 spin_unlock(rsv_lock);
         }
 }
@@ -683,14 +688,10 @@ error_return:
 void ext3_free_blocks(handle_t *handle, struct inode *inode,
                         ext3_fsblk_t block, unsigned long count)
 {
-        struct super_block * sb;
+        struct super_block *sb = inode->i_sb;
         unsigned long dquot_freed_blocks;
 
-        sb = inode->i_sb;
-        if (!sb) {
-                printk ("ext3_free_blocks: nonexistent device");
-                return;
-        }
+        trace_ext3_free_blocks(inode, block, count);
         ext3_free_blocks_sb(handle, sb, block, count, &dquot_freed_blocks);
         if (dquot_freed_blocks)
                 dquot_free_block(inode, dquot_freed_blocks);
@@ -1136,6 +1137,7 @@ static int alloc_new_reservation(struct ext3_reserve_window_node *my_rsv,
         else
                 start_block = grp_goal + group_first_block;
 
+        trace_ext3_alloc_new_reservation(sb, start_block);
         size = my_rsv->rsv_goal_size;
 
         if (!rsv_is_empty(&my_rsv->rsv_window)) {
@@ -1230,8 +1232,11 @@ retry:
          * check if the first free block is within the
          * free space we just reserved
          */
-        if (start_block >= my_rsv->rsv_start && start_block <= my_rsv->rsv_end)
+        if (start_block >= my_rsv->rsv_start &&
+            start_block <= my_rsv->rsv_end) {
+                trace_ext3_reserved(sb, start_block, my_rsv);
                 return 0;               /* success */
+        }
         /*
          * if the first free bit we found is out of the reservable space
          * continue search for next reservable space,
@@ -1514,10 +1519,6 @@ ext3_fsblk_t ext3_new_blocks(handle_t *handle, struct inode *inode,
 
         *errp = -ENOSPC;
         sb = inode->i_sb;
-        if (!sb) {
-                printk("ext3_new_block: nonexistent device");
-                return 0;
-        }
 
         /*
          * Check quota for allocation of this block.
@@ -1528,8 +1529,10 @@ ext3_fsblk_t ext3_new_blocks(handle_t *handle, struct inode *inode,
                 return 0;
         }
 
+        trace_ext3_request_blocks(inode, goal, num);
+
         sbi = EXT3_SB(sb);
-        es = EXT3_SB(sb)->s_es;
+        es = sbi->s_es;
         ext3_debug("goal=%lu.\n", goal);
         /*
          * Allocate a block from reservation only when
@@ -1742,6 +1745,10 @@ allocated:
         brelse(bitmap_bh);
         dquot_free_block(inode, *count-num);
         *count = num;
+
+        trace_ext3_allocate_blocks(inode, goal, num,
+                                   (unsigned long long)ret_block);
+
         return ret_block;
 
 io_error:
@@ -1996,6 +2003,7 @@ ext3_grpblk_t ext3_trim_all_free(struct super_block *sb, unsigned int group,
                 if ((next - start) < minblocks)
                         goto free_extent;
 
+                trace_ext3_discard_blocks(sb, discard_block, next - start);
                  /* Send the TRIM command down to the device */
                 err = sb_issue_discard(sb, discard_block, next - start,
                                        GFP_NOFS, 0);
@@ -2100,7 +2108,7 @@ int ext3_trim_fs(struct super_block *sb, struct fstrim_range *range)
         if (unlikely(minlen > EXT3_BLOCKS_PER_GROUP(sb)))
                 return -EINVAL;
         if (start >= max_blks)
-                goto out;
+                return -EINVAL;
         if (start + len > max_blks)
                 len = max_blks - start;
 
@@ -2148,8 +2156,6 @@ int ext3_trim_fs(struct super_block *sb, struct fstrim_range *range)
 
         if (ret >= 0)
                 ret = 0;
-
-out:
         range->len = trimmed * sb->s_blocksize;
 
         return ret;