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b7f7a66e42
linux/fs/nfs
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Chuck Lever b7f7a66e42 NFS: Support NFS4ERR_LEASE_MOVED recovery in state manager 
A migration on the FSID in play for the current NFS operation
is reported via the error status code NFS4ERR_MOVED.

"Lease moved" means that a migration has occurred on some other
FSID than the one for the current operation.  It's a signal that
the client should take action immediately to handle a migration
that it may not have noticed otherwise.  This is so that the
client's lease does not expire unnoticed on the destination server.

In NFSv4.0, a moved lease is reported with the NFS4ERR_LEASE_MOVED
error status code.

To recover from NFS4ERR_LEASE_MOVED, check each FSID for that server
to see if it is still present.  Invoke nfs4_try_migration() if the
FSID is no longer present on the server.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2013-10-28 15:30:21 -04:00
..
blocklayout NFSv4.1 use pnfs_device maxcount for the blocklayout gdia_maxcount 2013-06-28 15:34:44 -04:00
objlayout NFSv4.1 use pnfs_device maxcount for the objectlayout gdia_maxcount 2013-06-28 15:34:45 -04:00
cache_lib.c
cache_lib.h
callback_proc.c NFS: When displaying session slot numbers, use "%u" consistently 2013-09-03 15:26:30 -04:00
callback_xdr.c Merge branch 'labeled-nfs' into linux-next 2013-06-28 16:29:51 -04:00
callback.c NFS client updates for Linux 3.11 2013-07-09 12:09:43 -07:00
callback.h NFS: Add in v4.2 callback operation 2013-06-08 16:20:18 -04:00
client.c NFS: Add nfs4_update_server 2013-10-28 15:22:29 -04:00
delegation.c NFSv4: Add tracepoints for debugging delegations 2013-08-22 08:58:24 -04:00
delegation.h
dir.c NFSv4: Honour the 'opened' parameter in the atomic_open() filesystem method 2013-09-26 10:20:18 -04:00
direct.c aio: Kill aio_rw_vect_retry() 2013-07-30 11:53:12 -04:00
dns_resolve.c NFSv4: Move the DNS resolver into the NFSv4 module 2013-06-18 13:47:18 -04:00
dns_resolve.h
file.c NFS avoid expired credential keys for buffered writes 2013-09-03 15:25:09 -04:00
fscache-index.c
fscache.c
fscache.h
getroot.c NFS:Add labels to client function prototypes 2013-06-08 16:20:15 -04:00
idmap.c NFSv4: Convert idmapper to use the new framework for pipefs dentries 2013-09-01 11:12:42 -04:00
inode.c NFS: Export _nfs_display_fhandle() 2013-10-28 15:23:35 -04:00
internal.h NFS: Add nfs4_update_server 2013-10-28 15:22:29 -04:00
iostat.h
Kconfig Kconfig: Add Kconfig entry for Labeled NFS V4 client 2013-06-08 16:20:17 -04:00
Makefile NFS: Enable slot table helpers for NFSv4.0 2013-09-03 15:26:33 -04:00
mount_clnt.c nfs: have nfs_mount fake up a auth_flavs list when the server didn't provide it 2013-06-28 15:51:51 -04:00
namespace.c NFS:Add labels to client function prototypes 2013-06-08 16:20:15 -04:00
netns.h
nfs2super.c
nfs2xdr.c
nfs3acl.c
nfs3client.c
nfs3proc.c NFSv4: Don't try to recover NFSv4 locks when they are lost. 2013-09-04 12:26:32 -04:00
nfs3super.c
nfs3xdr.c
nfs4_fs.h NFS: Support NFS4ERR_LEASE_MOVED recovery in state manager 2013-10-28 15:30:21 -04:00
nfs4client.c NFS: Add basic migration support to state manager thread 2013-10-28 15:24:40 -04:00
nfs4file.c NFSv4: Honour the 'opened' parameter in the atomic_open() filesystem method 2013-09-26 10:20:18 -04:00
nfs4filelayout.c NFSv4.1 Use MDS auth flavor for data server connection 2013-09-06 14:49:16 -04:00
nfs4filelayout.h NFSv4.1: Use layout credentials for get_deviceinfo calls 2013-06-06 16:24:37 -04:00
nfs4filelayoutdev.c NFSv4.1: Ensure memory ordering between nfs4_ds_connect and nfs4_fl_prepare_ds 2013-09-29 15:58:35 -04:00
nfs4getroot.c NFSv4: Fix security auto-negotiation 2013-09-07 16:18:30 -04:00
nfs4namespace.c NFS: Add functions to swap transports during migration recovery 2013-10-28 15:23:07 -04:00
nfs4proc.c NFS: Add method to detect whether an FSID is still on the server 2013-10-28 15:30:03 -04:00
nfs4renewd.c
nfs4session.c When CONFIG_NFS_V4_1 is not enabled, "make C=2" emits this warning: 2013-09-04 12:26:30 -04:00
nfs4session.h When CONFIG_NFS_V4_1 is not enabled, "make C=2" emits this warning: 2013-09-04 12:26:30 -04:00
nfs4state.c NFS: Support NFS4ERR_LEASE_MOVED recovery in state manager 2013-10-28 15:30:21 -04:00
nfs4super.c NFSv4: Fix security auto-negotiation 2013-09-07 16:18:30 -04:00
nfs4sysctl.c
nfs4trace.c NFSv4.1: Add tracepoints for debugging slot table operations 2013-08-22 08:58:27 -04:00
nfs4trace.h NFSv4.1: Add tracepoints for debugging test_stateid events 2013-08-22 08:58:27 -04:00
nfs4xdr.c NFS: Add method to detect whether an FSID is still on the server 2013-10-28 15:30:03 -04:00
nfs.h
nfsroot.c
nfstrace.c NFS: Add event tracing for generic NFS lookups 2013-08-22 08:58:18 -04:00
nfstrace.h NFS: Add tracepoints for debugging NFS hard links 2013-08-22 08:58:20 -04:00
pagelist.c NFS: Don't check lock owner compatability unless file is locked (part 2) 2013-09-06 11:27:41 -04:00
pnfs_dev.c
pnfs.c NFSv4: Add tracepoints for debugging reads and writes 2013-08-22 08:58:26 -04:00
pnfs.h NFSv4.1 Fix gdia_maxcount calculation to fit in ca_maxresponsesize 2013-06-28 15:34:43 -04:00
proc.c NFSv4: Don't try to recover NFSv4 locks when they are lost. 2013-09-04 12:26:32 -04:00
read.c NFSv4: Don't try to recover NFSv4 locks when they are lost. 2013-09-04 12:26:32 -04:00
super.c NFS: Add a super_block backpointer to the nfs_server struct 2013-10-28 15:24:26 -04:00
symlink.c
sysctl.c
unlink.c NFS: Ensure that rmdir() waits for sillyrenames to complete 2013-09-03 15:26:29 -04:00
write.c NFS: Don't check lock owner compatibility in writes unless file is locked 2013-09-05 18:11:42 -04:00