Re: [pnfs] [RFC 0/85] nfs41 client patches for review

[Benny Halevy <bhalevy@panasas.com>]

The patchset is also available on
git://linux-nfs.org/~bhalevy/linux-pnfs.git nfs41-2.6.28-review

Cumulated diff for the client side changes:

http://git.linux-nfs.org/?p=bhalevy/linux-pnfs.git;a=commitdiff_plain;h=nfs41-2.6.28-rc4-client-review-2008-11-10;hp=upstream-2.6.28

Benny

On Nov. 10, 2008, 21:57 +0200, Benny Halevy <bhalevy@panasas.com> wrote:
> Trond,
> 
> Here's the patch series for nfs41 client side, rebased
> over 2.6.28 for review.
> 
> I've cleaned up the patch as much as I could in the given
> time frame but surely there's more work to be done.
> 
> I encourage others to comment on the patches as well.
> 
> Thanks,
> 
> Benny
> 
> pre-nfs41 patches:
> [RFC 01/85] sunrpc: get rid of rpc_rqst.rq_bufsize
> [RFC 02/85] nfs: return compound hdr.status when there are no op replies
> [RFC 03/85] nfs: remove incorrect usage of nfs4 compound response hdr.status
> [RFC 04/85] FIXME: NFS: Increment operation number in each encode_* routine
> 
> 
> general defs:
> [RFC 05/85] nfs41: Add Kconfig symbols for NFSv4.1
> [RFC 06/85] nfs41: common protocol definitions
> [RFC 07/85] nfs41: define NFS4_MAX_MINOR_VERSION based on CONFIG_NFS_V4_1
> [RFC 08/85] nfs41: client xdr definitions
> 
> 
> basic support for minorversion != 0:
> [RFC 09/85] nfs41: add mount command option minorvers
> [RFC 10/85] nfs41: struct nfs_server minorversion
> [RFC 11/85] nfs41: nfs_client.cl_minorversion
> [RFC 12/85] nfs41: set nfs_client rpc_ops based on minorversion
> [RFC 13/85] nfs41: use ptr to rpc procedures via struct nfs_client
> [RFC 14/85] nfs41: sunrpc: support minorversion for rpc_clnt version table.
> [RFC 15/85] nfs41: Proper initialization of nfs_client_initdata.rpc_ops
> [RFC 16/85] nfs41: pass recovery status from reclaimer kthread up to nfs4_wait_clnt_recover
> [RFC 17/85] nfs41: fallback to lower minorversion if nfs4_create_server fails
> 
> 
> sessions basic functionality:
> [RFC 18/85] nfs41: sessions client infrastructure
> [RFC 19/85] nfs41: share client sessions across mounts
> [RFC 20/85] nfs41: slot table init and destroy
> [RFC 21/85] nfs41: find slot
> [RFC 22/85] nfs41: free slot
> 
> support for sequence for legacy ops:
> [RFC 23/85] nfs41: minorversion support for xdr
> [RFC 24/85] nfs41: stubs for nfs41 procedures
> [RFC 25/85] nfs41: make nfs4_wait_bit_killable public
> [RFC 26/85] nfs41: introduce nfs4_call_sync
> [RFC 27/85] nfs41: nfs4_setup_sequence
> [RFC 28/85] nfs41: setup_sequence method
> [RFC 29/85] nfs41: nfs41_sequence_done
> [RFC 30/85] nfs41: nfs41_call_sync_done
> [RFC 31/85] nfs41: separate free slot from sequence done
> [RFC 32/85] nfs41: sequence setup/done support
> [RFC 33/85] nfs41: Support sessions with O_DIRECT.
> 
> nfs41 ops:
> [RFC 34/85] nfs41: exchange_id operation
> [RFC 35/85] nfs41: get_lease_time
> [RFC 36/85] nfs41: create_session operation
> [RFC 37/85] nfs41: destroy_session operation
> [RFC 38/85] nfs41: sequence operation
> 
> session setup and recovery:
> [RFC 39/85] nfs41: session recovery infrastructure
> [RFC 40/85] nfs41: schedule async session reset
> [RFC 41/85] nfs41: lease renewal
> [RFC 42/85] nfs41: sunrpc: Export the call prepare state for session reset
> [RFC 43/85] nfs41: use rpc prepare call state for session reset
> [RFC 44/85] nfs41: kick start nfs41 session recovery when handling errors
> [RFC 45/85] nfs41: start session recovery from nfs4_setup_sequence
> [RFC 46/85] nfs41: introduce get_state_renewal_cred
> [RFC 47/85] nfs41: get cred in exchange_id when cred arg is NULL
> [RFC 48/85] nfs41: establish sessions-based clientid
> [RFC 49/85] nfs41: recover lease in _nfs4_lookup_root
> [RFC 50/85] nfs41: schedule state recovery on BAD or DEAD session
> [RFC 51/85] nfs41: state reclaimer renew lease error handling
> [RFC 52/85] nfs41: increment_{open,lock}_seqid
> 
> backchannel:
> [RFC 53/85] nfs41: Add ability to read RPC call direction on TCP stream.
> [RFC 54/85] nfs41: Skip past the RPC call direction
> [RFC 55/85] nfs41: Refactor NFSv4 callback service
> [RFC 56/85] nfs41: client callback structures
> [RFC 57/85] nfs41: Initialize new rpc_xprt callback related fields
> [RFC 58/85] nfs41: New backchannel helper routines
> [RFC 59/85] nfs41: New include/linux/sunrpc/bc_xprt.h
> [RFC 60/85] nfs41: New xs_tcp_read_data()
> [RFC 61/85] nfs41: Add backchannel processing support to RPC state machine
> [RFC 62/85] nfs41: Backchannel callback service helper routines
> [RFC 63/85] FIXME: nfs41: sunrpc: handle clnt==NULL in call_status
> 
> callback service:
> [RFC 64/85] nfs41: Refactor svc_process()
> [RFC 65/85] nfs41: Backchannel bc_svc_process()
> [RFC 66/85] nfs41: Implement NFSv4.1 callback service process.
> [RFC 67/85] nfs41: sunrpc: provide functions to create and destroy a svc_xprt for backchannel use
> [RFC 68/85] nfs41: sunrpc: add a struct svc_xprt pointer to struct svc_serv for backchannel use
> [RFC 69/85] nfs41: create a svc_xprt for nfs41 callback thread and use for incoming callbacks
> [RFC 70/85] nfs41: save svc_serv in nfs_callback_info
> [RFC 71/85] nfs41: Add a reference to svc_serv during callback service bring up
> [RFC 72/85] nfs41: Allow NFSv4 and NFSv4.1 callback services to coexist
> [RFC 73/85] nfs41: Setup the backchannel
> [RFC 74/85] nfs41: Client indicates presence of NFSv4.1 callback channel.
> [RFC 75/85] nfs41: Get the rpc_xprt * from the rpc_rqst instead of the rpc_clnt.
> [RFC 76/85] nfs41: Release backchannel resources associated with session
> 
> callback processing:
> [RFC 77/85] nfs41: store minorversion in cb_compound_hdr_arg
> [RFC 78/85] nfs41: decode minorversion 1 cb_compound header
> [RFC 79/85] nfs41: callback numbers definitions
> [RFC 80/85] nfs41: consider minorversion in callback_xdr:process_op
> [RFC 81/85] nfs41: define CB_NOTIFY_DEVICEID as not supported
> [RFC 82/85] nfs41: cb_sequence protocol level data structures
> [RFC 83/85] nfs41: cb_sequence proc implementation
> [RFC 84/85] nfs41: cb_sequence xdr implementation
> [RFC 85/85] nfs41: verify CB_SEQUENCE position in callback compound
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