1. 01 6月, 2012 1 次提交
  2. 31 5月, 2012 1 次提交
    • J
      Btrfs: use delayed ref sequence numbers for all fs-tree updates · 95a06077
      Jan Schmidt 提交于
      The sequence number for delayed refs is needed to postpone certain delayed
      refs for a very short period while walking backrefs. Before the tree
      modification log, we thought we'd only have to hold back those references
      that don't have a counter operation.
      
      While now we've the tree mod log, we're rewinding fs tree blocks to a
      defined consistent state. We cannot know in advance for which tree block
      we'll be doing rewind operations later. Therefore, we must postpone all the
      delayed refs for fs-tree blocks, even those having a counter operation.
      Signed-off-by: NJan Schmidt <list.btrfs@jan-o-sch.net>
      95a06077
  3. 30 5月, 2012 7 次提交
  4. 26 5月, 2012 8 次提交
  5. 06 5月, 2012 1 次提交
    • C
      Btrfs: avoid sleeping in verify_parent_transid while atomic · b9fab919
      Chris Mason 提交于
      verify_parent_transid needs to lock the extent range to make
      sure no IO is underway, and so it can safely clear the
      uptodate bits if our checks fail.
      
      But, a few callers are using it with spinlocks held.  Most
      of the time, the generation numbers are going to match, and
      we don't want to switch to a blocking lock just for the error
      case.  This adds an atomic flag to verify_parent_transid,
      and changes it to return EAGAIN if it needs to block to
      properly verifiy things.
      Signed-off-by: NChris Mason <chris.mason@oracle.com>
      b9fab919
  6. 05 5月, 2012 4 次提交
  7. 28 4月, 2012 7 次提交
  8. 19 4月, 2012 11 次提交