linux-toradex.git/include/linux/nfs_fs_sb.h, branch v3.0.22

NFSv4.1: Don't loop forever in nfs4_proc_create_session

2011-04-24T18:28:18+00:00

If a server for some reason keeps sending NFS4ERR_DELAY errors, we can end
up looping forever inside nfs4_proc_create_session, and so the usual
mechanisms for detecting if the nfs_client is dead don't work.

Fix this by ensuring that we loop inside the nfs4_state_manager thread
instead.

Signed-off-by: Trond Myklebust

NFSv4: Send unmapped uid/gids to the server when using auth_sys

2011-03-11T20:39:27+00:00

The new behaviour is enabled using the new module parameter
'nfs4_disable_idmapping'.

Note that if the server rejects an unmapped uid or gid, then
the client will automatically switch back to using the idmapper.

Signed-off-by: Trond Myklebust

NFSv4.1 move deviceid cache to filelayout driver

2011-03-11T20:38:43+00:00

No need for generic cache with only one user.
Keep a simple hash of deviceids in the filelayout driver.

Signed-off-by: Christoph Hellwig 
Acked-by: Andy Adamson 
Signed-off-by: Trond Myklebust

NFSv4.1: new flag for lease time check

2011-03-11T20:38:41+00:00

Data servers cannot send nfs4_proc_get_lease_time. but still need to setup
state renewal. Add the NFS_CS_CHECK_LEASE_TIME bit to indicate if the lease
time can be checked.

Signed-off-by: Andy Adamson 
Signed-off-by: Trond Myklebust

NFSv4.1: new flag for state renewal check

2011-03-11T20:38:41+00:00

Data servers not sharing a session with the mount MDS always have an empty
cl_superblocks list.
Replace the cl_superblocks empty list check to see if it is time to shut down
renewd with the NFS_CS_STOP_RENEW bit which is not set by such a data server.

Signed-off-by: Andy Adamson 
Signed-off-by: Trond Myklebust

NFSv4/4.1: Fix nfs4_schedule_state_recovery abuses

2011-03-11T20:18:22+00:00

nfs4_schedule_state_recovery() should only be used when we need to force
the state manager to check the lease. If we just want to start the
state manager in order to handle a state recovery situation, we should be
using nfs4_schedule_state_manager().

This patch fixes the abuses of nfs4_schedule_state_recovery() by replacing
its use with a set of helper functions that do the right thing.

Signed-off-by: Trond Myklebust

NFSv4: remove duplicate clientid in struct nfs_client

2011-03-10T20:05:00+00:00

Signed-off-by: Andy Adamson 
Signed-off-by: Trond Myklebust

NFS: Move cl_delegations to the nfs_server struct

2011-01-06T19:57:46+00:00

Delegations are per-inode, not per-nfs_client.  When a server file
system is migrated, delegations on the client must be moved from the
source to the destination nfs_server.  Make it easier to manage a
mount point's delegation list across a migration event by moving the
list to the nfs_server struct.

Clean up: I added documenting comments to public functions I changed
in this patch.  For consistency I added comments to all the other
public functions in fs/nfs/delegation.c.

Signed-off-by: Chuck Lever 
Signed-off-by: Trond Myklebust

NFS: Move cl_state_owners and related fields to the nfs_server struct

2011-01-06T19:47:57+00:00

NFSv4 migration needs to reassociate state owners from the source to
the destination nfs_server data structures.  To make that easier, move
the cl_state_owners field to the nfs_server struct.  cl_openowner_id
and cl_lockowner_id accompany this move, as they are used in
conjunction with cl_state_owners.

The cl_lock field in the parent nfs_client continues to protect all
three of these fields.

Signed-off-by: Chuck Lever 
Signed-off-by: Trond Myklebust

pnfs: layout roc code

2011-01-06T19:46:32+00:00

A layout can request return-on-close.  How this interacts with the
forgetful model of never sending LAYOUTRETURNS is a bit ambiguous.
We forget any layouts marked roc, and wait for them to be completely
forgotten before continuing with the close.  In addition, to compensate
for races with any inflight LAYOUTGETs, and the fact that we do not get
any layout stateid back from the server, we set the barrier to the worst
case scenario of current_seqid + number of outstanding LAYOUTGETS.

Signed-off-by: Fred Isaman 
Signed-off-by: Trond Myklebust