[Cluster-devel] [[GFS2 PATCH] 0/3] Patches for gfs2_lookup_by_inum deadlock

[Bob Peterson]

Hi,

This is a set of three patches from Andreas Gruenbacher that fix the
gfs2_lookup_by_inum deadlock problem. I've been working with Andreas
for a while now, and we've both made several attempts to fix this
problem in the past, in regard to the transition of dinodes from the
"unlinked" to the "free" state. This is the latest attempt, and it
seems to be working well.

Our previous attempt made a change to vfs, but Al Viro didn't like
that, so it was scrapped in favor of this one, which is simpler and
confined to GFS2. It's similar in concept to the patch set I posted
on 18 December 2015.

It also fixes a problem for 32-bit architecture that was introduced
by a recent patch related to the same problem.

Signed-off-by: Andreas Gruenbacher <agruenba at redhat.com>
Signed-off-by: Bob Peterson <rpeterso at redhat.com>
---
Andreas Gruenbacher (3):
  gfs2: Fix gfs2_lookup_by_inum lock inversion
  gfs2: Get rid of gfs2_ilookup
  gfs2: Large-filesystem fix for 32-bit systems

 fs/gfs2/dir.c        |   3 +-
 fs/gfs2/export.c     |  11 ------
 fs/gfs2/glock.c      |   9 +----
 fs/gfs2/inode.c      | 103 ++++++++++++++++++++++++++++++++++++---------------
 fs/gfs2/inode.h      |   4 +-
 fs/gfs2/ops_fstype.c |   3 +-
 6 files changed, 81 insertions(+), 52 deletions(-)

-- 
2.5.5