Btrfs: show useful info in space reservation tracepoint

o For space info, the type of space info is useful for debug.
o For transaction handle, its transid is useful.

Signed-off-by: Liu Bo <liubo2009@cn.fujitsu.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>

3 files changed, 13 insertions, 25 deletions

diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 8fe517bd8521..7c233407beee 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -3363,8 +3363,7 @@ commit_trans:
         }
         data_sinfo->bytes_may_use += bytes;
         trace_btrfs_space_reservation(root->fs_info, "space_info",
-                                      (u64)(unsigned long)data_sinfo,
-                                      bytes, 1);
+                                      data_sinfo->flags, bytes, 1);
         spin_unlock(&data_sinfo->lock);
 
         return 0;
@@ -3385,8 +3384,7 @@ void btrfs_free_reserved_data_space(struct inode *inode, u64 bytes)
         spin_lock(&data_sinfo->lock);
         data_sinfo->bytes_may_use -= bytes;
         trace_btrfs_space_reservation(root->fs_info, "space_info",
-                                      (u64)(unsigned long)data_sinfo,
-                                      bytes, 0);
+                                      data_sinfo->flags, bytes, 0);
         spin_unlock(&data_sinfo->lock);
 }
 
@@ -3751,9 +3749,7 @@ again:
                 if (used + orig_bytes <= space_info->total_bytes) {
                         space_info->bytes_may_use += orig_bytes;
                         trace_btrfs_space_reservation(root->fs_info,
-                                              "space_info",
-                                              (u64)(unsigned long)space_info,
-                                              orig_bytes, 1);
+                                "space_info", space_info->flags, orig_bytes, 1);
                         ret = 0;
                 } else {
                         /*
@@ -3822,9 +3818,7 @@ again:
                 if (used + num_bytes < space_info->total_bytes + avail) {
                         space_info->bytes_may_use += orig_bytes;
                         trace_btrfs_space_reservation(root->fs_info,
-                                              "space_info",
-                                              (u64)(unsigned long)space_info,
-                                              orig_bytes, 1);
+                                "space_info", space_info->flags, orig_bytes, 1);
                         ret = 0;
                 } else {
                         wait_ordered = true;
@@ -3970,8 +3964,7 @@ static void block_rsv_release_bytes(struct btrfs_fs_info *fs_info,
                         spin_lock(&space_info->lock);
                         space_info->bytes_may_use -= num_bytes;
                         trace_btrfs_space_reservation(fs_info, "space_info",
-                                              (u64)(unsigned long)space_info,
-                                              num_bytes, 0);
+                                        space_info->flags, num_bytes, 0);
                         space_info->reservation_progress++;
                         spin_unlock(&space_info->lock);
                 }
@@ -4189,14 +4182,14 @@ static void update_global_block_rsv(struct btrfs_fs_info *fs_info)
                 block_rsv->reserved += num_bytes;
                 sinfo->bytes_may_use += num_bytes;
                 trace_btrfs_space_reservation(fs_info, "space_info",
-                                      (u64)(unsigned long)sinfo, num_bytes, 1);
+                                      sinfo->flags, num_bytes, 1);
         }
 
         if (block_rsv->reserved >= block_rsv->size) {
                 num_bytes = block_rsv->reserved - block_rsv->size;
                 sinfo->bytes_may_use -= num_bytes;
                 trace_btrfs_space_reservation(fs_info, "space_info",
-                                      (u64)(unsigned long)sinfo, num_bytes, 0);
+                                      sinfo->flags, num_bytes, 0);
                 sinfo->reservation_progress++;
                 block_rsv->reserved = block_rsv->size;
                 block_rsv->full = 1;
@@ -4250,8 +4243,7 @@ void btrfs_trans_release_metadata(struct btrfs_trans_handle *trans,
                 return;
 
         trace_btrfs_space_reservation(root->fs_info, "transaction",
-                                      (u64)(unsigned long)trans,
-                                      trans->bytes_reserved, 0);
+                                      trans->transid, trans->bytes_reserved, 0);
         btrfs_block_rsv_release(root, trans->block_rsv, trans->bytes_reserved);
         trans->bytes_reserved = 0;
 }
@@ -4770,9 +4762,8 @@ static int btrfs_update_reserved_bytes(struct btrfs_block_group_cache *cache,
                         space_info->bytes_reserved += num_bytes;
                         if (reserve == RESERVE_ALLOC) {
                                 trace_btrfs_space_reservation(cache->fs_info,
-                                              "space_info",
-                                              (u64)(unsigned long)space_info,
-                                              num_bytes, 0);
+                                                "space_info", space_info->flags,
+                                                num_bytes, 0);
                                 space_info->bytes_may_use -= num_bytes;
                         }
                 }
diff --git a/fs/btrfs/inode-map.c b/fs/btrfs/inode-map.c
index 7ca46e6e11ae..b1a1c929ba80 100644
--- a/fs/btrfs/inode-map.c
+++ b/fs/btrfs/inode-map.c
@@ -439,8 +439,7 @@ int btrfs_save_ino_cache(struct btrfs_root *root,
         if (ret)
                 goto out;
         trace_btrfs_space_reservation(root->fs_info, "ino_cache",
-                                      (u64)(unsigned long)trans,
-                                      trans->bytes_reserved, 1);
+                                      trans->transid, trans->bytes_reserved, 1);
 again:
         inode = lookup_free_ino_inode(root, path);
         if (IS_ERR(inode) && (PTR_ERR(inode) != -ENOENT || retry)) {
@@ -507,8 +506,7 @@ out_put:
         iput(inode);
 out_release:
         trace_btrfs_space_reservation(root->fs_info, "ino_cache",
-                                      (u64)(unsigned long)trans,
-                                      trans->bytes_reserved, 0);
+                                      trans->transid, trans->bytes_reserved, 0);
         btrfs_block_rsv_release(root, trans->block_rsv, trans->bytes_reserved);
 out:
         trans->block_rsv = rsv;
diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c
index 63f835aa9788..8da29e8e4de1 100644
--- a/fs/btrfs/transaction.c
+++ b/fs/btrfs/transaction.c
@@ -337,8 +337,7 @@ again:
 
         if (num_bytes) {
                 trace_btrfs_space_reservation(root->fs_info, "transaction",
-                                              (u64)(unsigned long)h,
-                                              num_bytes, 1);
+                                              h->transid, num_bytes, 1);
                 h->block_rsv = &root->fs_info->trans_block_rsv;
                 h->bytes_reserved = num_bytes;
         }