[PATCH 00/18] orangefs: page cache

[Martin Brandenburg]

The first five patches were sent up two weeks ago.

https://marc.info/?l=linux-fsdevel&m=151190064825337&w=2

There is a bug in the original "implement vm_ops->fault" which is fixed
here.  When expanding generic_file_readonly_mmap, I neglected to include
the test for VM_SHARED and VM_MAYWRITE.  The test is removed later in
"implement write through the page cache," but if only the first five are
accepted for the next kernel, they should be taken from here.

I sent this up some time ago

https://marc.info/?l=linux-fsdevel&m=149548681910978&w=2

I hope the code is faily self-explanatory.  This isn't quite in a fully
finished or tested state, but it's starting to come together.
Unfortunately most of the changes from last time are fixes for subtle
bugs and are rebased in, which makes them hard to see.

This is significantly more stable than it was six months ago, but I'm
still worried about how it will act when run for days, weeks, months at
a time and across multiple machines.  This is the next step in my
testing.

I'd appreciate any reviews, even if just to tell me that I've done
everything completely wrong.

Martin Brandenburg (18):
  orangefs: open code short single-use functions
  orangefs: implement vm_ops->fault
  orangefs: do not invalidate attributes on inode create
  orangefs: do not invalidate attribute cache on setattr
  orangefs: reverse sense of revalidate is-inode-stale test
  orangefs: move orangefs_address_operations to file.c
  orangefs: remove orangefs_readpages
  orangefs: make orangefs_inode_read static
  orangefs: only set a_ops for regular files
  orangefs: BUG_ON if i_mode invalid
  orangefs: remove mapping_nrpages macro
  orangefs: set up and use backing_dev_info
  orangefs: inodes linger in cache
  orangefs: implement direct_IO for the read case
  orangefs: call generic_file_read_iter
  orangefs: implement write through the page cache
  orangefs: no more explicit setattr
  orangefs: implement xattr cache

 fs/orangefs/acl.c             |  11 +-
 fs/orangefs/dcache.c          |  17 +-
 fs/orangefs/file.c            | 353 +++++++++++++++++++++++-------------------
 fs/orangefs/inode.c           | 259 ++++---------------------------
 fs/orangefs/namei.c           |  75 ++++++---
 fs/orangefs/orangefs-kernel.h |  19 +--
 fs/orangefs/orangefs-utils.c  |  11 +-
 fs/orangefs/super.c           |  60 ++++++-
 fs/orangefs/symlink.c         |   2 -
 fs/orangefs/xattr.c           |  62 ++++++++
 10 files changed, 409 insertions(+), 460 deletions(-)

-- 
2.15.1