linux_dsm_epyc7002/fs/nfs
Andy Adamson 4745e3154b nfs41: kick start nfs41 session recovery when handling errors
Remove checking for any errors that the SEQUENCE operation does not return.
-NFS4ERR_STALE_CLIENTID, NFS4ERR_EXPIRED, NFS4ERR_CB_PATH_DOWN, NFS4ERR_BACK_CHAN_BUSY, NFS4ERR_OP_NOT_IN_SESSION.

SEQUENCE operation error recovery is very primative, we only reset the session.

Remove checking for any errors that are returned by the SEQUENCE operation, but
that resetting the session won't address.
NFS4ERR_RETRY_UNCACHED_REP, NFS4ERR_SEQUENCE_POS,NFS4ERR_TOO_MANY_OPS.

Add error checking for missing SEQUENCE errors that a session reset will
address.
NFS4ERR_BAD_HIGH_SLOT, NFS4ERR_DEADSESSION, NFS4ERR_SEQ_FALSE_RETRY.

A reset of the session is currently our only response to a SEQUENCE operation
error. Don't reset the session on errors where a new session won't help.

Don't reset the session on errors where a new session won't help.

[nfs41: nfs4_async_handle_error update error checking]
Signed-off-by: Andy Adamson <andros@netapp.com>
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
[nfs41: trigger the state manager for session reset]
    Replace session state bit with nfs_client state bit.  Set the
    NFS4CLNT_SESSION_SETUP bit upon a session related error in the sync/async
    error handlers.
[nfs41: _nfs4_async_handle_error fix session reset error list]
Sequence operation errors that session reset could help.
NFS4ERR_BADSESSION
NFS4ERR_BADSLOT
NFS4ERR_BAD_HIGH_SLOT
NFS4ERR_DEADSESSION
NFS4ERR_CONN_NOT_BOUND_TO_SESSION
NFS4ERR_SEQ_FALSE_RETRY
NFS4ERR_SEQ_MISORDERED

Sequence operation errors that a session reset would not help

NFS4ERR_BADXDR
NFS4ERR_DELAY
NFS4ERR_REP_TOO_BIG
NFS4ERR_REP_TOO_BIG_TO_CACHE
NFS4ERR_REQ_TOO_BIG
NFS4ERR_RETRY_UNCACHED_REP
NFS4ERR_SEQUENCE_POS
NFS4ERR_TOO_MANY_OPS

Signed-off-by: Andy Adamson <andros@netapp.com>
[nfs41 nfs4_handle_exception fix session reset error list]
Signed-off-by: Andy Adamson <andros@netapp.com>
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
[moved nfs41_sequece_call_done code to nfs41: sequence operation]
Signed-off-by: Andy Adamson <andros@netapp.com>
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2009-06-17 12:25:08 -07:00
..
callback_proc.c nfs: replace remaining __FUNCTION__ occurrences 2008-05-16 09:43:29 -07:00
callback_xdr.c nfs: replace remaining __FUNCTION__ occurrences 2008-05-16 09:43:29 -07:00
callback.c NFS: Start PF_INET6 callback listener only if IPv6 support is available 2009-03-28 16:02:43 -04:00
callback.h NFS: Start PF_INET6 callback listener only if IPv6 support is available 2009-03-28 16:02:43 -04:00
client.c nfs41: add session setup to the state manager 2009-06-17 12:25:06 -07:00
delegation.c NFSv4: Convert delegation->type field to fmode_t 2008-12-23 15:21:53 -05:00
delegation.h NFSv4: Convert delegation->type field to fmode_t 2008-12-23 15:21:53 -05:00
dir.c nfs: Fix NFS v4 client handling of MAY_EXEC in nfs_permission. 2009-05-18 20:11:12 -07:00
direct.c nfs41 commit sequence setup done support 2009-06-17 10:46:50 -07:00
file.c NFS: Close page_mkwrite() races 2009-05-02 19:42:39 -07:00
fscache-index.c NFS: Add read context retention for FS-Cache to call back with 2009-04-03 16:42:44 +01:00
fscache.c NFS: Store pages from an NFS inode into a local cache 2009-04-03 16:42:45 +01:00
fscache.h NFS: Display local caching state 2009-04-03 16:42:47 +01:00
getroot.c NFS: Fix the type of struct nfs_fattr->mode 2009-03-11 14:10:26 -04:00
idmap.c nfs: fix sparse warnings 2008-02-20 16:15:44 -05:00
inode.c NFS: Use local disk inode cache 2009-04-03 16:42:43 +01:00
internal.h nfs41: use rpc prepare call state for session reset 2009-06-17 12:25:07 -07:00
iostat.h NFS: Add some new I/O counters for FS-Cache doing things for NFS 2009-04-03 16:42:43 +01:00
Kconfig nfs41: Add Kconfig symbols for NFSv4.1 2009-06-17 10:46:13 -07:00
Makefile NFS: Define and create server-level objects 2009-04-03 16:42:42 +01:00
mount_clnt.c NFS: "[no]resvport" mount option changes mountd client too 2008-12-23 15:21:37 -05:00
namespace.c nfs: BUG_ON in nfs_follow_mountpoint 2008-10-07 18:15:16 -04:00
nfs2xdr.c NFS: Fix the type of struct nfs_fattr->mode 2009-03-11 14:10:26 -04:00
nfs3acl.c NFSv3: Fix posix ACL code 2009-03-10 20:33:18 -04:00
nfs3proc.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6 2009-04-02 21:09:10 -07:00
nfs3xdr.c NFS: Fix the XDR iovec calculation in nfs3_xdr_setaclargs 2009-04-21 07:46:49 -07:00
nfs4_fs.h nfs41: add session reset to state manager 2009-06-17 12:25:06 -07:00
nfs4namespace.c NFS: Fix misparsing of nfsv4 fs_locations attribute (take 2) 2009-03-10 20:33:17 -04:00
nfs4proc.c nfs41: kick start nfs41 session recovery when handling errors 2009-06-17 12:25:08 -07:00
nfs4renewd.c NFSv4: Return unreferenced delegations more promptly 2008-12-23 15:21:52 -05:00
nfs4state.c nfs41: add session reset to state manager 2009-06-17 12:25:06 -07:00
nfs4xdr.c nfs41: sequence operation 2009-06-17 12:25:04 -07:00
nfsroot.c nfs: fix build error in nfsroot with initconst 2009-05-26 14:51:00 -04:00
pagelist.c NFS: Throttle page dirtying while we're flushing to disk 2009-03-11 14:10:30 -04:00
proc.c NFS: Optimise NFS close() 2009-03-19 15:35:50 -04:00
read.c nfs41: use rpc prepare call state for session reset 2009-06-17 12:25:07 -07:00
super.c nfs41: destroy_session operation 2009-06-17 12:24:55 -07:00
symlink.c nfs: remove unnecessary NFS_NEED_* defines 2008-04-23 16:13:37 -04:00
sysctl.c [PATCH] nfs: fix congestion control 2007-03-16 19:25:05 -07:00
unlink.c nfs41: use rpc prepare call state for session reset 2009-06-17 12:25:07 -07:00
write.c nfs41: use rpc prepare call state for session reset 2009-06-17 12:25:07 -07:00