This patch series introduces support for striped layouts:
The first 2 patches are simple preparation changes. There should be
no logical impact to the code.
The 3rd patch refactors the nfs4_ff_layout_mirror struct to have an
array of a new nfs4_ff_layout_ds_stripe type. The
nfs4_ff_layout_ds_stripe has all the contents of ff_data_server4 per
the flexfile rfc. I called it ds_stripe because ds was already taken
by the deviceid side of the code.
The patches 4-8 update various paths to be dss_id aware. Most of this
consists of either adding a new parameter to the function or adding a
loop. Depending on which is appropriate.
The final patch 9 updates the layout creation path to populate the
array and turns the feature on.
v1:
- Fixes function parameter 'dss_id' not described in 'nfs4_ff_layout_prepare_ds'
Jonathan Curley (9):
NFSv4/flexfiles: Remove cred local variable dependency
NFSv4/flexfiles: Use ds_commit_idx when marking a write commit
NFSv4/flexfiles: Add data structure support for striped layouts
NFSv4/flexfiles: Update low level helper functions to be DS stripe
aware.
NFSv4/flexfiles: Read path updates for striped layouts
NFSv4/flexfiles: Commit path updates for striped layouts
NFSv4/flexfiles: Write path updates for striped layouts
NFSv4/flexfiles: Update layout stats & error paths for striped layouts
NFSv4/flexfiles: Add support for striped layouts
fs/nfs/flexfilelayout/flexfilelayout.c | 774 +++++++++++++++-------
fs/nfs/flexfilelayout/flexfilelayout.h | 64 +-
fs/nfs/flexfilelayout/flexfilelayoutdev.c | 111 ++--
fs/nfs/write.c | 2 +-
4 files changed, 637 insertions(+), 314 deletions(-)
--
2.34.1
