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linux/fs/nfs
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Trond Myklebust 862e4c3a4b NFSv4: Fix races between open and dentry revalidation 
[ Upstream commit cf5b4059ba7197d6cef9c0e024979d178ed8c8ec ]

We want to make sure that we revalidate the dentry if and only if
we've done an OPEN by filename.
In order to avoid races with remote changes to the directory on the
server, we want to save the verifier before calling OPEN. The exception
is if the server returned a delegation with our OPEN, as we then
know that the filename can't have changed on the server.

Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Reviewed-by: Benjamin Coddington <bcodding@gmail.com>
Tested-by: Benjamin Coddington <bcodding@gmail.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-03-05 16:43:37 +01:00
..
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
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_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
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
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
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
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
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 races between open and dentry revalidation
2020-03-05 16:43:37 +01:00
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
…
nfs4namespace.c
NFS: Fix up documentation warnings
2019-02-20 15:14:21 -05:00
nfs4proc.c
NFSv4: Fix races between open and dentry revalidation
2020-03-05 16:43:37 +01:00
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
NFS: Fix memory leaks
2020-02-24 08:37:02 +01:00
nfs42xdr.c
NFSv4.2: Add client support for the generic 'layouterror' RPC call
2019-03-01 16:20:16 -05:00
nfs.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
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_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
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
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