btrfs: Make pin_down_extent take transaction handle

All callers have a reference to a transaction handle so pass it to
pin_down_extent. This is the final step before switching pinned extent
tracking to a per-transaction basis.

Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index e6ea01d..425eefe 100644 (file)
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -2585,7 +2585,8 @@ static u64 first_logical_byte(struct btrfs_fs_info *fs_info, u64 search_start)
        return bytenr;
 }
 
-static int pin_down_extent(struct btrfs_block_group *cache,
+static int pin_down_extent(struct btrfs_trans_handle *trans,
+                          struct btrfs_block_group *cache,
                           u64 bytenr, u64 num_bytes, int reserved)
 {
        struct btrfs_fs_info *fs_info = cache->fs_info;
@@ -2617,7 +2618,7 @@ int btrfs_pin_extent(struct btrfs_trans_handle *trans,
        cache = btrfs_lookup_block_group(trans->fs_info, bytenr);
        BUG_ON(!cache); /* Logic error */
 
-       pin_down_extent(cache, bytenr, num_bytes, reserved);
+       pin_down_extent(trans, cache, bytenr, num_bytes, reserved);
 
        btrfs_put_block_group(cache);
        return 0;
@@ -2644,7 +2645,7 @@ int btrfs_pin_extent_for_log_replay(struct btrfs_trans_handle *trans,
         */
        btrfs_cache_block_group(cache, 1);
 
-       pin_down_extent(cache, bytenr, num_bytes, 0);
+       pin_down_extent(trans, cache, bytenr, num_bytes, 0);
 
        /* remove us from the free space cache (if we're there at all) */
        ret = btrfs_remove_free_space(cache, bytenr, num_bytes);
@@ -3296,7 +3297,7 @@ void btrfs_free_tree_block(struct btrfs_trans_handle *trans,
                cache = btrfs_lookup_block_group(fs_info, buf->start);
 
                if (btrfs_header_flag(buf, BTRFS_HEADER_FLAG_WRITTEN)) {
-                       pin_down_extent(cache, buf->start, buf->len, 1);
+                       pin_down_extent(trans, cache, buf->start, buf->len, 1);
                        btrfs_put_block_group(cache);
                        goto out;
                }
@@ -4197,7 +4198,7 @@ int btrfs_pin_reserved_extent(struct btrfs_trans_handle *trans, u64 start,
                return -ENOSPC;
        }
 
-       ret = pin_down_extent(cache, start, len, 1);
+       ret = pin_down_extent(trans, cache, start, len, 1);
        btrfs_put_block_group(cache);
        return ret;
 }