[Cluster-devel] [PATCH 00/11] Eleven patches related to file unlink->delete->new

[Bob Peterson]

This set of eleven patches was designed to fix several problems in GFS2
that had to do with transitioning dinodes from unlinked to deleted and
back to created again. Many of these problems resulted in dinodes being
not transitioning from the "unlinked" state to a "deleted" state.
Some of them address the problem of dinodes being re-created in place
(due to limited space in the file system) in which case callbacks were
received and delete work was queued for dinodes that were already
deleted and re-used by another node, only to have the callback destroy
the newly created dinode.

These patches were tested using virts that had 4GB GFS2 file systems,
using a test case that recreated numerous problems. With these patches,
all those problems disappear.

I don't really consider this patch set ready to ship yet. I just wanted
to toss them out there to get some code reviews and some feedback.

Signed-off-by: Bob Peterson <rpeterso at redhat.com>
---
Bob Peterson (11):
  GFS2: Update master statfs buffer with sd_statfs_spin locked
  GFS2: Allow fail_gunlock3 to set the free_vfs_inode bit
  GFS2: Protect log tail calculations with inside locks
  GFS2: Wait for iopen glock dequeues
  GFS2: Reintroduce a timeout in function gfs2_gl_hash_clear
  GFS2: Prevent gl_delete work for re-used inodes
  GFS2: Truncate address space mapping when deleting an inode
  GFS2: Don't filter out I_FREEING inodes anymore
  GFS2: generalize gfs2_check_blk_type
  GFS2: Rework transition from unlinked to deleted dinodes
  GFS2: Change from tr_touched to tr_bufs

 fs/gfs2/dir.c        |   2 +-
 fs/gfs2/export.c     |   2 +-
 fs/gfs2/glock.c      |  15 ++--
 fs/gfs2/glops.c      |   3 +-
 fs/gfs2/incore.h     |   7 +-
 fs/gfs2/inode.c      | 231 ++++++++++++++++++++++++++++++++++++---------------
 fs/gfs2/inode.h      |   7 +-
 fs/gfs2/log.c        |   7 +-
 fs/gfs2/main.c       |   2 +
 fs/gfs2/meta_io.c    |  12 ++-
 fs/gfs2/ops_fstype.c |   2 +-
 fs/gfs2/rgrp.c       |  52 ++++++++----
 fs/gfs2/rgrp.h       |   1 +
 fs/gfs2/super.c      |  67 ++++++++++-----
 fs/gfs2/trans.c      |  13 +--
 fs/gfs2/xattr.c      |   6 ++
 16 files changed, 304 insertions(+), 125 deletions(-)

-- 
2.4.3
---