[Cluster-devel] [PATCH 0/2] positional readdir cookies

[Benjamin Marzinski <bmarzins@redhat.com>]

These two patches implement positional readdir cookies. The first one simply
changes how splitting leaf blocks works to allow for this method to work. The
second one does the meat of the work.

Like I mention in the second patch, this adds a new parameter to the dirent
structure that is never saved to disk.  This is simply to make use of the
memory to store the computed location based cookie. Avoiding this has a
noticeable performance impact. However, I'm open to any ideas on how to make
this look less strange (or, any other ways of getting space to store these
values that doesn't involve allocating it, which caused the performance hit).

Benjamin Marzinski (2):
  gfs2: keep offset when splitting dir leaf blocks
  gfs2: change gfs2 readdir cookie

 fs/gfs2/dir.c                    | 160 ++++++++++++++++++++++++++++++---------
 fs/gfs2/incore.h                 |   3 +
 fs/gfs2/ops_fstype.c             |   3 +
 fs/gfs2/super.c                  |  12 +++
 include/uapi/linux/gfs2_ondisk.h |   9 ++-
 5 files changed, 148 insertions(+), 39 deletions(-)

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1.8.3.1