1. 02 Jul, 2017 3 commits
  2. 28 Jun, 2017 9 commits
  3. 24 Jun, 2017 1 commit
    • Brian Foster's avatar
      xfs: free uncommitted transactions during log recovery · 39775431
      Brian Foster authored
      Log recovery allocates in-core transaction and member item data
      structures on-demand as it processes the on-disk log. Transactions
      are allocated on first encounter on-disk and stored in a hash table
      structure where they are easily accessible for subsequent lookups.
      Transaction items are also allocated on demand and are attached to
      the associated transactions.
      
      When a commit record is encountered in the log, the transaction is
      committed to the fs and the in-core structures are freed. If a
      filesystem crashes or shuts down before all in-core log buffers are
      flushed to the log, however, not all transactions may have commit
      records in the log. As expected, the modifications in such an
      incomplete transaction are not replayed to the fs. The in-core data
      structures for the partial transaction are never freed, however,
      resulting in a memory leak.
      
      Update xlog_do_recovery_pass() to first correctly initialize the
      hash table array so empty lists can be distinguished from populated
      lists on function exit. Update xlog_recover_free_trans() to always
      remove the transaction from the list prior to freeing the associated
      memory. Finally, walk the hash table of transaction lists as the
      last step before it goes out of scope and free any transactions that
      may remain on the lists. This prevents a memory leak of partial
      transactions in the log.
      Signed-off-by: default avatarBrian Foster <bfoster@redhat.com>
      Reviewed-by: default avatarChristoph Hellwig <hch@lst.de>
      Reviewed-by: default avatarDarrick J. Wong <darrick.wong@oracle.com>
      Signed-off-by: default avatarDarrick J. Wong <darrick.wong@oracle.com>
      39775431
  4. 20 Jun, 2017 7 commits
  5. 19 Jun, 2017 20 commits