redonkable
/
alistair23-linux
1
0
Fork 0
Code Releases Activity
alistair23-linux/fs/nfs
History
Robert Milkowski f481812994 NFSv4.0: nfs4_do_fsinfo() should not do implicit lease renewals 
commit 7dc2993a9e upstream.

Currently, each time nfs4_do_fsinfo() is called it will do an implicit
NFS4 lease renewal, which is not compliant with the NFS4 specification.
This can result in a lease being expired by an NFS server.

Commit 83ca7f5ab3 ("NFS: Avoid PUTROOTFH when managing leases")
introduced implicit client lease renewal in nfs4_do_fsinfo(),
which can result in the NFSv4.0 lease to expire on a server side,
and servers returning NFS4ERR_EXPIRED or NFS4ERR_STALE_CLIENTID.

This can easily be reproduced by frequently unmounting a sub-mount,
then stat'ing it to get it mounted again, which will delay or even
completely prevent client from sending RENEW operations if no other
NFS operations are issued. Eventually nfs server will expire client's
lease and return an error on file access or next RENEW.

This can also happen when a sub-mount is automatically unmounted
due to inactivity (after nfs_mountpoint_expiry_timeout), then it is
mounted again via stat(). This can result in a short window during
which client's lease will expire on a server but not on a client.
This specific case was observed on production systems.

This patch removes the implicit lease renewal from nfs4_do_fsinfo().

Fixes: 83ca7f5ab3 ("NFS: Avoid PUTROOTFH when managing leases")
Signed-off-by: Robert Milkowski <rmilkowski@gmail.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 		2020-02-14 16:34:11 -05:00
..
blocklayout treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
filelayout pNFS/filelayout: enable LAYOUTGET on OPEN 2019-09-24 16:28:38 -04:00
flexfilelayout pNFS/flexfiles: Don't time out requests on hard mounts 2019-08-26 15:31:29 -04:00
Kconfig nfs: NFS_SWAP should depend on SWAP 2020-02-14 16:34:10 -05:00
Makefile NFS: Create a root NFS directory in /sys/fs/nfs 2019-07-06 14:54:49 -04:00
cache_lib.c NFS client updates for Linux 4.15 2017-11-17 14:18:00 -08:00
cache_lib.h NFS client updates for Linux 4.15 2017-11-17 14:18:00 -08:00
callback.c SUNRPC: Cache the process user cred in the RPC server listener 2019-04-24 09:46:35 -04:00
callback.h NFS CB_OFFLOAD xdr 2018-08-09 12:56:38 -04:00
callback_proc.c NFS4: Add a trace event to record invalid CB sequence IDs 2019-07-09 10:30:25 -04:00
callback_xdr.c SUNRPC/nfs: Fix return value for nfs4_callback_compound() 2019-04-24 09:46:34 -04:00
client.c NFS: Cleanup if nfs_match_client is interrupted 2019-07-06 14:54:53 -04:00
delegation.c NFS: Fix an RCU lock leak in nfs4_refresh_delegation_stateid() 2019-11-01 11:03:56 -04:00
delegation.h NFSv4: Don't allow a cached open with a revoked delegation 2019-11-01 10:59:26 -04:00
dir.c NFS: Directory page cache pages need to be locked when read 2020-02-11 04:35:32 -08:00
direct.c NFS/pnfs: Fix pnfs_generic_prepare_to_resend_writes() 2020-02-14 16:34:10 -05:00
dns_resolve.c keys: Pass the network namespace into request_key mechanism 2019-06-27 23:02:12 +01:00
dns_resolve.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
export.c NFS: Pass the inode down to the getattr() callback 2018-06-04 12:07:07 -04:00
file.c treewide: Add SPDX license identifier for missed files 2019-05-21 10:50:45 +02:00
fscache-index.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 36 2019-05-24 17:27:11 +02:00
fscache.c NFS: Fix regression whereby fscache errors are appearing on 'nofsc' mounts 2019-08-04 22:35:41 -04:00
fscache.h NFS: Fix regression whereby fscache errors are appearing on 'nofsc' mounts 2019-08-04 22:35:41 -04:00
getroot.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
inode.c NFS: Fix inode fileid checks in attribute revalidation code 2019-09-02 13:10:19 -04:00
internal.h NFS Client Updates for Linux 5.3 2019-09-26 12:20:14 -07:00
io.c NFS: Fix up documentation warnings 2019-02-20 15:14:21 -05:00
iostat.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mount_clnt.c SUNRPC: Cache cred of process creating the rpc_client 2019-04-26 16:00:48 -04:00
namespace.c treewide: Add SPDX license identifier for missed files 2019-05-21 10:50:45 +02:00
netns.h NFS: Add sysfs support for per-container identifier 2019-07-06 14:54:49 -04:00
nfs.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
nfs2super.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
nfs2xdr.c NFSv2: Fix a typo in encode_sattr() 2020-01-17 19:48:47 +01:00
nfs3_fs.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
nfs3acl.c nfs: fix xfstest generic/099 failed on nfsv3 2019-02-20 17:33:55 -05:00
nfs3client.c pNFS: Allow multiple connections to the DS 2019-07-06 14:54:50 -04:00
nfs3proc.c NFSv3: use nfs_add_or_obtain() to create and reference inodes 2019-09-20 15:15:24 -04:00
nfs3super.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
nfs3xdr.c NFS/pnfs: Fix pnfs_generic_prepare_to_resend_writes() 2020-02-14 16:34:10 -05:00
nfs4_fs.h NFSv4.0: nfs4_do_fsinfo() should not do implicit lease renewals 2020-02-14 16:34:11 -05:00
nfs4client.c NFSv4: Fix a potential sleep while atomic in nfs4_do_reclaim() 2019-08-04 22:35:40 -04:00
nfs4file.c NFSv4: Fix return values for nfs4_file_open() 2019-08-19 08:56:04 -04:00
nfs4getroot.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
nfs4idmap.c Revert "Merge tag 'keys-acl-20190703' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs" 2019-07-10 18:43:43 -07:00
nfs4idmap.h NFS: Move nfs_idmap.h into fs/nfs/ 2015-04-23 15:16:14 -04:00
nfs4namespace.c NFS: Fix up documentation warnings 2019-02-20 15:14:21 -05:00
nfs4proc.c NFSv4.0: nfs4_do_fsinfo() should not do implicit lease renewals 2020-02-14 16:34:11 -05:00
nfs4renewd.c NFSv4.0: nfs4_do_fsinfo() should not do implicit lease renewals 2020-02-14 16:34:11 -05:00
nfs4session.c treewide: Add SPDX license identifier for missed files 2019-05-21 10:50:45 +02:00
nfs4session.h NFSv4.1: Bump the default callback session slot count to 16 2019-03-02 16:25:26 -05:00
nfs4state.c NFSv4.0: nfs4_do_fsinfo() should not do implicit lease renewals 2020-02-14 16:34:11 -05:00
nfs4super.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
nfs4sysctl.c nfs: Do not convert nfs_idmap_cache_timeout to jiffies 2018-01-18 15:10:47 -05:00
nfs4trace.c pnfs/flexfiles: Add tracepoints for detecting pnfs fallback to MDS 2019-07-18 15:50:28 -04:00
nfs4trace.h NFS: Fix fix of show_nfs_errors 2020-02-14 16:34:10 -05:00
nfs4xdr.c NFS/pnfs: Fix pnfs_generic_prepare_to_resend_writes() 2020-02-14 16:34:10 -05:00
nfs42.h NFSv4.2: Add client support for the generic 'layouterror' RPC call 2019-03-01 16:20:16 -05:00
nfs42proc.c NFSv4.1 fix incorrect return value in copy_file_range 2019-04-11 15:23:48 -04:00
nfs42xdr.c NFSv4.2: Add client support for the generic 'layouterror' RPC call 2019-03-01 16:20:16 -05:00
nfsroot.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
nfstrace.c NFS: Add trace events to report non-zero NFS status codes 2019-02-13 12:03:21 -05:00
nfstrace.h kill LOOKUP_NO_EVAL, don't bother including namei.h from audit.h 2019-08-30 21:29:32 -04:00
pagelist.c NFS: Fix initialisation of I/O result struct in nfs_pgio_rpcsetup 2019-08-19 08:56:04 -04:00
pnfs.c NFSv4: pnfs_roc() must use cred_fscmp() to compare creds 2020-02-14 16:34:10 -05:00
pnfs.h pNFS: Handle NFS4ERR_OLD_STATEID on layoutreturn by bumping the state seqid 2019-09-20 15:48:35 -04:00
pnfs_dev.c NFS/flexfiles: Speed up read failover when DSes are down 2019-03-01 22:37:38 -05:00
pnfs_nfs.c NFS/pnfs: Fix pnfs_generic_prepare_to_resend_writes() 2020-02-14 16:34:10 -05:00
proc.c NFSv2: Fix write regression 2019-08-27 10:24:56 -04:00
read.c NFS: Fix spurious EIO read errors 2019-08-26 15:31:29 -04:00
super.c NFS Client Updates for Linux 5.3 2019-09-26 12:20:14 -07:00
symlink.c nfs: pass the correct prototype to read_cache_page 2019-05-09 16:26:57 -04:00
sysctl.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
sysfs.c NFS: Add sysfs support for per-container identifier 2019-07-06 14:54:49 -04:00
sysfs.h NFS: Add sysfs support for per-container identifier 2019-07-06 14:54:49 -04:00
unlink.c fsnotify: move fsnotify_nameremove() hook out of d_delete() 2019-06-20 14:47:44 +02:00
write.c NFS/pnfs: Fix pnfs_generic_prepare_to_resend_writes() 2020-02-14 16:34:10 -05:00