Btrfs: remove unused trans in read_block_for_search

@trans is not used at all, this removes it.

Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c
index 72dd200f04789b31bd0ec253016eea5ef0caed13..fbeff20eb1946e4aeb1f8ada7eb4a9235f17796d 100644 (file)
--- a/fs/btrfs/ctree.c
+++ b/fs/btrfs/ctree.c
@@ -2438,10 +2438,9 @@ noinline void btrfs_unlock_up_safe(struct btrfs_path *path, int level)
  * reada.  -EAGAIN is returned and the search must be repeated.
  */
 static int
-read_block_for_search(struct btrfs_trans_handle *trans,
-                      struct btrfs_root *root, struct btrfs_path *p,
-                      struct extent_buffer **eb_ret, int level, int slot,
-                      const struct btrfs_key *key, u64 time_seq)
+read_block_for_search(struct btrfs_root *root, struct btrfs_path *p,
+                     struct extent_buffer **eb_ret, int level, int slot,
+                     const struct btrfs_key *key, u64 time_seq)
 {
        struct btrfs_fs_info *fs_info = root->fs_info;
        u64 blocknr;
@@ -2871,8 +2870,8 @@ cow_done:
                                goto done;
                        }
 
-                       err = read_block_for_search(trans, root, p,
-                                                   &b, level, slot, key, 0);
+                       err = read_block_for_search(root, p, &b, level,
+                                                   slot, key, 0);
                        if (err == -EAGAIN)
                                goto again;
                        if (err) {
@@ -3015,7 +3014,7 @@ again:
                                goto done;
                        }
 
-                       err = read_block_for_search(NULL, root, p, &b, level,
+                       err = read_block_for_search(root, p, &b, level,
                                                    slot, key, time_seq);
                        if (err == -EAGAIN)
                                goto again;
@@ -5786,7 +5785,7 @@ again:
 
                next = c;
                next_rw_lock = path->locks[level];
-               ret = read_block_for_search(NULL, root, path, &next, level,
+               ret = read_block_for_search(root, path, &next, level,
                                            slot, &key, 0);
                if (ret == -EAGAIN)
                        goto again;
@@ -5836,7 +5835,7 @@ again:
                if (!level)
                        break;
 
-               ret = read_block_for_search(NULL, root, path, &next, level,
+               ret = read_block_for_search(root, path, &next, level,
                                            0, &key, 0);
                if (ret == -EAGAIN)
                        goto again;