[Cluster-devel] [GFS2 PATCH 0/4] jhead lookup using bios

[Abhi Das]

This is my latest version of this patchset based on inputs from Andreas
and Steve.
We readahead the journal sequentially in large chunks using bios. Pagecache
pages for the journal inode's mapping are used for the I/O.

There's also some cleanup of the bio functions with this patchset.

xfstests ran to completion with this.

Abhi Das (4):
  gfs2: add more timing info to journal recovery process
  gfs2: changes to gfs2_log_XXX_bio
  gfs2: add a helper function to get_log_header that can be used
    elsewhere
  gfs2: read journal in large chunks to locate the head

 fs/gfs2/bmap.c       |   8 +-
 fs/gfs2/glops.c      |   1 +
 fs/gfs2/log.c        |   4 +-
 fs/gfs2/lops.c       | 240 +++++++++++++++++++++++++++++++++++++++++++--------
 fs/gfs2/lops.h       |   4 +-
 fs/gfs2/ops_fstype.c |   1 +
 fs/gfs2/recovery.c   | 178 ++++++++------------------------------
 fs/gfs2/recovery.h   |   4 +-
 fs/gfs2/super.c      |   1 +
 9 files changed, 255 insertions(+), 186 deletions(-)

-- 
2.4.11