[Cluster-devel] [RHEL7 fs 0/3] gfs2: Fixes to "Implement iomap for block_map"

[Andreas Gruenbacher]

There are several regressions in commit "[fs] gfs2: Implement iomap for
block_map", which are fixed in mainline commit "Fixes to "Implement
iomap for block_map"".

Because mainline commit "Fixes to "Implement iomap for block_map""
depends on commit "gfs2: Clean up {lookup,fillup}_metapath", backport
that as well.

The regressions trigger a WARN_ON(iomap.length == 0) in iomap_apply in
mainline.  This WARN_ON hasn't been backported to RHEL7 yet, so in order
to have a reasonable reproducer, backport that patch as well.

Andreas Gruenbacher (2):
  gfs2: Clean up {lookup,fillup}_metapath
  gfs2: Fixes to "Implement iomap for block_map"

Darrick J. Wong (1):
  iomap: warn on zero-length mappings

 fs/gfs2/bmap.c | 117 ++++++++++++++++++++++++++-------------------------------
 fs/iomap.c     |   2 +
 2 files changed, 55 insertions(+), 64 deletions(-)

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2.14.3