16 Oct, 2015
2 commits
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NFSv42 CLONE operation is supposed to respect it.
Signed-off-by: Peng Tao
Signed-off-by: Trond Myklebust -
xdr definitions per draft-ietf-nfsv4-minorversion2-38.txt
Signed-off-by: Peng Tao
Signed-off-by: Trond Myklebust
18 Aug, 2015
1 commit
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Signed-off-by: Christoph Hellwig
Signed-off-by: Trond Myklebust
24 Jun, 2015
1 commit
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Reviewed-by: Jeff Layton
Signed-off-by: Trond Myklebust
Signed-off-by: Peng Tao
Signed-off-by: Trond Myklebust
22 Apr, 2015
1 commit
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The enum nfs4_acl_whotype is only used in nfs4d's internal nfs4 acl
representation. No longer expose it to user space.Signed-off-by: Andreas Gruenbacher
Signed-off-by: J. Bruce Fields
13 Feb, 2015
1 commit
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Pull nfsd updates from Bruce Fields:
"The main change is the pNFS block server support from Christoph, which
allows an NFS client connected to shared disk to do block IO to the
shared disk in place of NFS reads and writes. This also requires xfs
patches, which should arrive soon through the xfs tree, barring
unexpected problems. Support for other filesystems is also possible
if there's interest.Thanks also to Chuck Lever for continuing work to get NFS/RDMA into
shape"* 'for-3.20' of git://linux-nfs.org/~bfields/linux: (32 commits)
nfsd: default NFSv4.2 to on
nfsd: pNFS block layout driver
exportfs: add methods for block layout exports
nfsd: add trace events
nfsd: update documentation for pNFS support
nfsd: implement pNFS layout recalls
nfsd: implement pNFS operations
nfsd: make find_any_file available outside nfs4state.c
nfsd: make find/get/put file available outside nfs4state.c
nfsd: make lookup/alloc/unhash_stid available outside nfs4state.c
nfsd: add fh_fsid_match helper
nfsd: move nfsd_fh_match to nfsfh.h
fs: add FL_LAYOUT lease type
fs: track fl_owner for leases
nfs: add LAYOUT_TYPE_MAX enum value
nfsd: factor out a helper to decode nfstime4 values
sunrpc/lockd: fix references to the BKL
nfsd: fix year-2038 nfs4 state problem
svcrdma: Handle additional inline content
svcrdma: Move read list XDR round-up logic
...
04 Feb, 2015
1 commit
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The flexfile layout is a new layout that extends the
file layout. It is currently being drafted as a specification at
https://datatracker.ietf.org/doc/draft-ietf-nfsv4-layout-types/Signed-off-by: Weston Andros Adamson
Signed-off-by: Tom Haynes
Signed-off-by: Tao Peng
03 Feb, 2015
2 commits
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Add support for the GETDEVICEINFO, LAYOUTGET, LAYOUTCOMMIT and
LAYOUTRETURN NFSv4.1 operations, as well as backing code to manage
outstanding layouts and devices.Layout management is very straight forward, with a nfs4_layout_stateid
structure that extends nfs4_stid to manage layout stateids as the
top-level structure. It is linked into the nfs4_file and nfs4_client
structures like the other stateids, and contains a linked list of
layouts that hang of the stateid. The actual layout operations are
implemented in layout drivers that are not part of this commit, but
will be added later.The worst part of this commit is the management of the pNFS device IDs,
which suffers from a specification that is not sanely implementable due
to the fact that the device-IDs are global and not bound to an export,
and have a small enough size so that we can't store the fsid portion of
a file handle, and must never be reused. As we still do need perform all
export authentication and validation checks on a device ID passed to
GETDEVICEINFO we are caught between a rock and a hard place. To work
around this issue we add a new hash that maps from a 64-bit integer to a
fsid so that we can look up the export to authenticate against it,
a 32-bit integer as a generation that we can bump when changing the device,
and a currently unused 32-bit integer that could be used in the future
to handle more than a single device per export. Entries in this hash
table are never deleted as we can't reuse the ids anyway, and would have
a severe lifetime problem anyway as Linux export structures are temporary
structures that can go away under load.Parts of the XDR data, structures and marshaling/unmarshaling code, as
well as many concepts are derived from the old pNFS server implementation
from Andy Adamson, Benny Halevy, Dean Hildebrand, Marc Eshel, Fred Isaman,
Mike Sager, Ricardo Labiaga and many others.Signed-off-by: Christoph Hellwig
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This gives us a nice upper bound for later use in nfѕd.
Signed-off-by: Christoph Hellwig
26 Nov, 2014
2 commits
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This patch adds support for using the NFS v4.2 operation DEALLOCATE to
punch holes in a file.Signed-off-by: Anna Schumaker
Signed-off-by: Trond Myklebust -
This patch adds support for using the NFS v4.2 operation ALLOCATE to
preallocate data in a file.Signed-off-by: Anna Schumaker
Signed-off-by: Trond Myklebust
01 Oct, 2014
1 commit
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The SEEK operation is used when an application makes an lseek call with
either the SEEK_HOLE or SEEK_DATA flags set. I fall back on
nfs_file_llseek() if the server does not have SEEK support.Signed-off-by: Anna Schumaker
Signed-off-by: Trond Myklebust
30 Sep, 2014
2 commits
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This patch adds server support for the NFS v4.2 operation SEEK, which
returns the position of the next hole or data segment in a file.Signed-off-by: Anna Schumaker
Signed-off-by: J. Bruce Fields -
It's cleaner to introduce everything at once and have the server reply
with "not supported" than it would be to introduce extra operations when
implementing a specific one in the middle of the list.Signed-off-by: Anna Schumaker
Signed-off-by: J. Bruce Fields
29 Aug, 2014
1 commit
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Recent NFS v4.2 drafts have removed NFS4ERR_METADATA_NOTSUPP and
reassigned the error code to NFS4ERR_UNION_NOTSUPP.I also add in the NFS4ERR_OFFLOAD_NO_REQS error code.
We're not using any of these yet, so there's no harm done.
Signed-off-by: Anna Schumaker
Signed-off-by: J. Bruce Fields
07 Jun, 2014
1 commit
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This constant has the wrong value. And we don't use it. And it's been
removed from the 4.2 spec anyway.Signed-off-by: J. Bruce Fields
06 Dec, 2013
1 commit
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Pull NFS client bugfixes from Trond Myklebust:
- Stable fix for a NFSv4.1 delegation and state recovery deadlock
- Stable fix for a loop on irrecoverable errors when returning
delegations
- Fix a 3-way deadlock between layoutreturn, open, and state recovery
- Update the MAINTAINERS file with contact information for Trond
Myklebust
- Close needs to handle NFS4ERR_ADMIN_REVOKED
- Enabling v4.2 should not recompile nfsd and lockd
- Fix a couple of compile warnings* tag 'nfs-for-3.13-3' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
nfs: fix do_div() warning by instead using sector_div()
MAINTAINERS: Update contact information for Trond Myklebust
NFSv4.1: Prevent a 3-way deadlock between layoutreturn, open and state recovery
SUNRPC: do not fail gss proc NULL calls with EACCES
NFSv4: close needs to handle NFS4ERR_ADMIN_REVOKED
NFSv4: Update list of irrecoverable errors on DELEGRETURN
NFSv4 wait on recovery for async session errors
NFS: Fix a warning in nfs_setsecurity
NFS: Enabling v4.2 should not recompile nfsd and lockd
20 Nov, 2013
1 commit
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When CONFIG_NFS_V4_2 is toggled nfsd and lockd will be recompiled,
instead of only the nfs client. This patch moves a small amount of code
into the client directory to avoid unnecessary recompiles.Signed-off-by: Anna Schumaker
Signed-off-by: Trond Myklebust
17 Nov, 2013
1 commit
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Pull nfsd changes from Bruce Fields:
"This includes miscellaneous bugfixes and cleanup and a performance fix
for write-heavy NFSv4 workloads.(The most significant nfsd-relevant change this time is actually in
the delegation patches that went through Viro, fixing a long-standing
bug that can cause NFSv4 clients to miss updates made by non-nfs users
of the filesystem. Those enable some followup nfsd patches which I
have queued locally, but those can wait till 3.14)"* 'nfsd-next' of git://linux-nfs.org/~bfields/linux: (24 commits)
nfsd: export proper maximum file size to the client
nfsd4: improve write performance with better sendspace reservations
svcrpc: remove an unnecessary assignment
sunrpc: comment typo fix
Revert "nfsd: remove_stid can be incorporated into nfs4_put_delegation"
nfsd4: fix discarded security labels on setattr
NFSD: Add support for NFS v4.2 operation checking
nfsd4: nfsd_shutdown_net needs state lock
NFSD: Combine decode operations for v4 and v4.1
nfsd: -EINVAL on invalid anonuid/gid instead of silent failure
nfsd: return better errors to exportfs
nfsd: fh_update should error out in unexpected cases
nfsd4: need to destroy revoked delegations in destroy_client
nfsd: no need to unhash_stid before free
nfsd: remove_stid can be incorporated into nfs4_put_delegation
nfsd: nfs4_open_delegation needs to remove_stid rather than unhash_stid
nfsd: nfs4_free_stid
nfsd: fix Kconfig syntax
sunrpc: trim off EC bytes in GSSAPI v2 unwrap
gss_krb5: document that we ignore sequence number
...
05 Nov, 2013
2 commits
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We don't want to be setting capabilities and/or requesting attributes
that are not appropriate for the NFSv4 minor version.- Ensure that we clear the NFS_CAP_SECURITY_LABEL capability when appropriate
- Ensure that we limit the attribute bitmasks to the mounted_on_fileid
attribute and less for NFSv4.0
- Ensure that we limit the attribute bitmasks to suppattr_exclcreat and
less for NFSv4.1
- Ensure that we limit it to change_sec_label or less for NFSv4.2Signed-off-by: Trond Myklebust
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In the spec, the security label attribute id is '80', which means that
it should be bit number 80-64 == 16 in the 3rd word of the bitmap.Fixes: 4488cc96c581: NFS: Add NFSv4.2 protocol constants
Cc: J. Bruce Fields
Cc: Steve Dickson
Cc: stable@vger.kernel.org # 3.11+
Signed-off-by: Trond Myklebust
31 Oct, 2013
1 commit
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The server does allow NFS over v4.2, even if it doesn't add any new
operations yet.I also switch to using constants to represent the last operation for
each minor version since this makes the code cleaner and easier to
understand at a quick glance.Signed-off-by: Anna Schumaker
Signed-off-by: J. Bruce Fields
29 Oct, 2013
1 commit
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Introduce a mechanism for probing a server to determine if an FSID
is present or absent.The on-the-wire compound is different between minor version 0 and 1.
Minor version 0 appends a RENEW operation to identify which client
ID is probing. Minor version 1 has a SEQUENCE operation in the
compound which effectively carries the same information.Signed-off-by: Chuck Lever
Signed-off-by: Trond Myklebust
09 Jun, 2013
2 commits
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In order to mimic the way that NFSv4 ACLs are implemented we have created a
structure to be used to pass label data up and down the call chain. This patch
adds the new structure and new members to the required NFSv4 call structures.Signed-off-by: Matthew N. Dodd
Signed-off-by: Miguel Rodel Felipe
Signed-off-by: Phua Eu Gene
Signed-off-by: Khin Mi Mi Aung
Signed-off-by: Steve Dickson
Signed-off-by: Trond Myklebust -
This enable NFSv4.2 support. To enable this code the
CONFIG_NFS_V4_2 Kconfig define needs to be set and
the -o v4.2 mount option need to be used.Signed-off-by: Steve Dickson
Signed-off-by: Trond Myklebust
13 May, 2013
1 commit
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Signed-off-by: Matthew N. Dodd
Signed-off-by: Miguel Rodel Felipe
Signed-off-by: Phua Eu Gene
Signed-off-by: Khin Mi Mi Aung
Signed-off-by: Steve Dickson
Signed-off-by: J. Bruce Fields
13 Feb, 2013
1 commit
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In struct nfs4_ace remove the member who and replace it with an
anonymous union holding who_uid and who_gid. Allowing typesafe
storage uids and gids.Add a helper pace_gt for sorting posix_acl_entries.
In struct posix_user_ace_state to replace uid with a union
of kuid_t uid and kgid_t gid.Remove all initializations of the deprecated posic_acl_entry
e_id field. Which is not present when user namespaces are enabled.Split find_uid into two functions find_uid and find_gid that work
in a typesafe manner.In nfs4xdr update nfsd4_encode_fattr to deal with the changes
in struct nfs4_ace.Rewrite nfsd4_encode_name to take a kuid_t and a kgid_t instead
of a generic id and flag if it is a group or a uid. Replace
the group flag with a test for a valid gid.Modify nfsd4_encode_user to take a kuid_t and call the modifed
nfsd4_encode_name.Modify nfsd4_encode_group to take a kgid_t and call the modified
nfsd4_encode_name.Modify nfsd4_encode_aclname to take an ace instead of taking the
fields of an ace broken out. This allows it to detect if the ace is
for a user or a group and to pass the appropriate value while still
being typesafe.Cc: "J. Bruce Fields"
Cc: Trond Myklebust
Signed-off-by: "Eric W. Biederman"
13 Oct, 2012
1 commit
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Signed-off-by: David Howells
Acked-by: Arnd Bergmann
Acked-by: Thomas Gleixner
Acked-by: Michael Kerrisk
Acked-by: Paul E. McKenney
Acked-by: Dave Jones
27 May, 2012
1 commit
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Ensure that we destroy our lease on last unmount
Signed-off-by: Trond Myklebust
26 May, 2012
1 commit
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For backward compatibility with nfs-utils.
Signed-off-by: Trond Myklebust
Cc: Weston Andros Adamson
25 May, 2012
2 commits
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This patch adds the BIND_CONN_TO_SESSION operation which is needed for
upcoming SP4_MACH_CRED work and useful for recovering from broken connections
without destroying the session.Signed-off-by: Weston Andros Adamson
Signed-off-by: Trond Myklebust -
We only support one layout type per file system, so one threshold_item4 per
mdsthreshold4.Signed-off-by: Andy Adamson
Signed-off-by: Trond Myklebust
26 Mar, 2012
1 commit
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The nfs containerization work is a prerequisite for Jeff Layton's reboot
recovery rework.
06 Mar, 2012
1 commit
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Replace the union with the common struct stateid4 as defined in both
RFC3530 and RFC5661. This makes it easier to access the sequence id,
which will again make implementing support for parallel OPEN calls
easier.Signed-off-by: Trond Myklebust
18 Feb, 2012
1 commit
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Respect client request for not getting a delegation in NFSv4.1
Appropriately return delegation "type" NFS4_OPEN_DELEGATE_NONE_EXT
and WND4_NOT_WANTED reason.[nfsd41: add missing break when encoding op_why_no_deleg]
Signed-off-by: Benny Halevy
Signed-off-by: J. Bruce Fields
19 Oct, 2011
1 commit
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Signed-off-by: J. Bruce Fields
28 Aug, 2011
1 commit
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Signed-off-by: J. Bruce Fields
01 Aug, 2011
1 commit
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The block driver uses GETDEVICELIST
Signed-off-by: Andy Adamson
[pass struct nfs_server * to getdevicelist]
[get machince creds for getdevicelist]
[fix getdevicelist decode sizing]
Signed-off-by: Benny Halevy
Signed-off-by: Benny Halevy
Signed-off-by: Jim Rees
Signed-off-by: Trond Myklebust
13 Jul, 2011
2 commits
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FREE_STATEID is used to tell the server that we want to free a stateid
that no longer has any locks associated with it. This allows the client
to reclaim locks without encountering edge conditions documented in
section 8.4.3 of RFC 5661.Signed-off-by: Bryan Schumaker
Signed-off-by: Trond Myklebust -
This patch adds in the xdr for doing a TEST_STATEID call with a single
stateid. RFC 5661 allows multiple stateids to be tested in a single
call, but only testing one keeps things simpler for now.Signed-off-by: Bryan Schumaker
Signed-off-by: Trond Myklebust