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927864cd92
linux/fs/nfs
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Trond Myklebust 927864cd92 NFSv4: Fix the return value of nfs4_select_rw_stateid 
In commit 5521abfdcf (NFSv4: Resend the READ/WRITE RPC call
if a stateid change causes an error), we overloaded the return value of
nfs4_select_rw_stateid() to cause it to return -EWOULDBLOCK if an RPC
call is outstanding that would cause the NFSv4 lock or open stateid
to change.
That is all redundant when we actually copy the stateid used in the
read/write RPC call that failed, and check that against the current
stateid. It is doubly so, when we consider that in the NFSv4.1 case,
we also set the stateid's seqid to the special value '0', which means
'match the current valid stateid'.

Reported-by: Andy Adamson <andros@netapp.com>
Link: http://lkml.kernel.org/r/1393954269-3974-1-git-send-email-andros@netapp.com
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
2014-03-05 11:55:24 -05:00
..
blocklayout Linux 3.13-rc6 2013-12-31 09:51:02 -07:00
objlayout
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
callback.c nfs: Use PTR_ERR_OR_ZERO in 'nfs41_callback_up' function 2013-10-28 18:16:55 -04:00
callback.h
client.c NFS: cache parsed auth_info in nfs_server 2013-10-28 15:37:43 -04:00
delegation.c NFS: Fix a delegation callback race 2014-03-02 22:03:12 -05:00
delegation.h
dir.c nfs: add memory barriers around NFS_INO_INVALID_DATA and NFS_INO_INVALIDATING 2014-01-28 14:48:18 -05:00
direct.c nfs: page cache invalidation for dio 2014-01-13 17:29:50 -05:00
dns_resolve.c NFS: Enabling v4.2 should not recompile nfsd and lockd 2013-11-19 16:20:40 -05:00
dns_resolve.h
file.c NFS: dprintk() should not print negative fileids and inode numbers 2014-01-05 15:51:23 -05:00
fscache-index.c
fscache.c NFS: Use i_writecount to control whether to get an fscache cookie in nfs_open() 2013-09-27 18:40:25 +01:00
fscache.h NFS: Use i_writecount to control whether to get an fscache cookie in nfs_open() 2013-09-27 18:40:25 +01:00
getroot.c
idmap.c NFSv4: Convert idmapper to use the new framework for pipefs dentries 2013-09-01 11:12:42 -04:00
inode.c NFS: Do not set NFS_INO_INVALID_LABEL unless server supports labeled NFS 2014-02-10 08:44:12 -05:00
internal.h NFSv4: Use the correct net namespace in nfs4_update_server 2014-02-17 14:15:46 -05:00
iostat.h
Kconfig nfs: fix pnfs Kconfig defaults 2013-11-15 13:41:43 -05:00
Makefile NFS: Enable slot table helpers for NFSv4.0 2013-09-03 15:26:33 -04:00
mount_clnt.c
namespace.c nfs: use %p[dD] instead of open-coded (and often racy) equivalents 2013-10-24 23:34:50 -04:00
netns.h
nfs2super.c
nfs2xdr.c
nfs3acl.c NFSv3: Fix return value of nfs3_proc_setacls 2014-02-03 13:14:23 -05:00
nfs3client.c
nfs3proc.c nfs: fix xattr inode op pointers when disabled 2014-01-30 09:37:49 -08:00
nfs3super.c nfs: use generic posix ACL infrastructure for v3 Posix ACLs 2014-01-26 08:26:20 -05:00
nfs3xdr.c
nfs4_fs.h NFSv4.1 free slot before resending I/O to MDS 2014-01-29 11:54:55 -05:00
nfs4client.c NFSv4: Use the correct net namespace in nfs4_update_server 2014-02-17 14:15:46 -05:00
nfs4file.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2013-11-13 15:34:18 +09:00
nfs4filelayout.c NFSv4.1: Cleanup 2014-01-29 12:26:57 -05:00
nfs4filelayout.h
nfs4filelayoutdev.c nfs: fix dead code of ipv6_addr_scope 2014-01-05 15:38:21 -05:00
nfs4getroot.c NFSv4: Fix security auto-negotiation 2013-09-07 16:18:30 -04:00
nfs4namespace.c NFSv4: Use the correct net namespace in nfs4_update_server 2014-02-17 14:15:46 -05:00
nfs4proc.c NFSv4: nfs4_stateid_is_current should return 'true' for an invalid stateid 2014-03-05 11:55:06 -05:00
nfs4renewd.c
nfs4session.c NFSv4.1: nfs4_destroy_session must call rpc_destroy_waitqueue 2014-02-01 15:13:39 -05:00
nfs4session.h NFSv4.1: nfs4_destroy_session must call rpc_destroy_waitqueue 2014-02-01 15:13:39 -05:00
nfs4state.c NFSv4: Fix the return value of nfs4_select_rw_stateid 2014-03-05 11:55:24 -05:00
nfs4super.c NFSv4.1: Fix a race in nfs4_write_inode 2014-01-13 13:34:36 -05:00
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: initialize the ACL support bits to zero. 2014-01-31 08:28:16 -05:00
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: fix the handling of NFS_INO_INVALID_DATA flag in nfs_revalidate_mapping 2014-01-27 15:35:56 -05:00
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 NFSv4.1: Fix a race in nfs4_write_inode 2014-01-13 13:34:36 -05:00
pnfs.h NFSv4.1: Don't trust attributes if a pNFS LAYOUTCOMMIT is outstanding 2014-01-13 12:08:11 -05:00
proc.c nfs: use %p[dD] instead of open-coded (and often racy) equivalents 2013-10-24 23:34:50 -04:00
read.c NFS: dprintk() should not print negative fileids and inode numbers 2014-01-05 15:51:23 -05:00
super.c NFS: correctly report misuse of "migration" mount option. 2013-11-15 13:41:43 -05:00
symlink.c
sysctl.c
unlink.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2013-11-13 15:34:18 +09:00
write.c nfs: add memory barriers around NFS_INO_INVALID_DATA and NFS_INO_INVALIDATING 2014-01-28 14:48:18 -05:00