Btrfs: add allocator tracepoints

[linux.git] / fs / btrfs / extent-tree.c

diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index a44072a692ab684c59e229f266af5d9ae26953b4..ad1a20bc834d67297c224f5eee205206e44db8e1 100644 (file)
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -5256,6 +5256,8 @@ static noinline int find_free_extent(struct btrfs_trans_handle *trans,
        ins->objectid = 0;
        ins->offset = 0;
 
+       trace_find_free_extent(orig_root, num_bytes, empty_size, data);
+
        space_info = __find_space_info(root->fs_info, data);
        if (!space_info) {
                printk(KERN_ERR "No space info for %llu\n", data);
@@ -5432,6 +5434,8 @@ static noinline int find_free_extent(struct btrfs_trans_handle *trans,
                        if (offset) {
                                /* we have a block, we're done */
                                spin_unlock(&last_ptr->refill_lock);
+                               trace_btrfs_reserve_extent_cluster(root,
+                                       block_group, search_start, num_bytes);
                                goto checks;
                        }
 
@@ -5490,6 +5494,9 @@ static noinline int find_free_extent(struct btrfs_trans_handle *trans,
                                if (offset) {
                                        /* we found one, proceed */
                                        spin_unlock(&last_ptr->refill_lock);
+                                       trace_btrfs_reserve_extent_cluster(root,
+                                               block_group, search_start,
+                                               num_bytes);
                                        goto checks;
                                }
                        } else if (!cached && loop > LOOP_CACHING_NOWAIT
@@ -5576,6 +5583,8 @@ static noinline int find_free_extent(struct btrfs_trans_handle *trans,
                ins->objectid = search_start;
                ins->offset = num_bytes;
 
+               trace_btrfs_reserve_extent(orig_root, block_group,
+                                          search_start, num_bytes);
                if (offset < search_start)
                        btrfs_add_free_space(used_block_group, offset,
                                             search_start - offset);