reiserfs_discard_all_prealloc 3997 fs/reiserfs/journal.c reiserfs_discard_all_prealloc(th); /* it should not involve new blocks into reiserfs_discard_all_prealloc 2148 include/linux/reiserfs_fs.h void reiserfs_discard_all_prealloc(struct reiserfs_transaction_handle *th);