[PATCH] reiserfs: fix transaction sizes

From: Chris Mason <mason@suse.com>

Make sure reiserfs uses a reasonable number when restarting long unbounded
transactions (creating holes or deleting files).

Without this patch, the number of blocks requested grows with each
transaction restart, until it hits MAX_BATCH_COUNT and starts forcing
commits with every new transaction.

Oleg Drokin tracked this bug down

fs/reiserfs/inode.c

@@ -209,7 +209,7 @@ static int file_capable (struct inode * inode, long block)
   pathrelse(path) ;
   reiserfs_update_sd(th, inode) ;
   journal_end(th, s, len) ;
-  journal_begin(th, s, len) ;
+  journal_begin(th, s, JOURNAL_PER_BALANCE_CNT * 6) ;
   reiserfs_update_inode_transaction(inode) ;
 }
 

fs/reiserfs/stree.c

@@ -1757,7 +1757,7 @@ void reiserfs_do_truncate (struct reiserfs_transaction_handle *th,
 	  reiserfs_update_sd(th, p_s_inode) ;
 
 	  journal_end(th, p_s_inode->i_sb, orig_len_alloc) ;
-	  journal_begin(th, p_s_inode->i_sb, orig_len_alloc) ;
+	  journal_begin(th, p_s_inode->i_sb, JOURNAL_PER_BALANCE_CNT * 6) ;
 	  reiserfs_update_inode_transaction(p_s_inode) ;
 	}
     } while ( n_file_size > ROUND_UP (n_new_file_size) &&