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2013-12-05Merge tag 'nfs-for-3.13-3' of git://git.linux-nfs.org/projects/trondmy/linux-nfsLinus Torvalds
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
2013-11-19NFS: Enabling v4.2 should not recompile nfsd and lockdAnna Schumaker
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 <bjschuma@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2013-11-16Merge branch 'nfsd-next' of git://linux-nfs.org/~bfields/linuxLinus Torvalds
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 ...
2013-11-04NFSv4: Sanity check the server reply in _nfs4_server_capabilitiesTrond Myklebust
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 NFSv4.2 Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2013-11-04NFSv4.2: Fix a mismatch between Linux labeled NFS and the NFSv4.2 specTrond Myklebust
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 <bfields@fieldses.org> Cc: Steve Dickson <steved@redhat.com> Cc: stable@vger.kernel.org # 3.11+ Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2013-10-30NFSD: Add support for NFS v4.2 operation checkingAnna Schumaker
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 <bjschuma@netapp.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2013-10-28NFS: Add method to detect whether an FSID is still on the serverChuck Lever
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 <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2013-06-08NFSv4: Introduce new label structureSteve Dickson
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 <Matthew.Dodd@sparta.com> Signed-off-by: Miguel Rodel Felipe <Rodel_FM@dsi.a-star.edu.sg> Signed-off-by: Phua Eu Gene <PHUA_Eu_Gene@dsi.a-star.edu.sg> Signed-off-by: Khin Mi Mi Aung <Mi_Mi_AUNG@dsi.a-star.edu.sg> Signed-off-by: Steve Dickson <steved@redhat.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2013-06-08NFSv4.2: Added NFS v4.2 support to the NFS clientSteve Dickson
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 <steved@redhat.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2013-05-13NFS: Add NFSv4.2 protocol constantsSteve Dickson
Signed-off-by: Matthew N. Dodd <Matthew.Dodd@sparta.com> Signed-off-by: Miguel Rodel Felipe <Rodel_FM@dsi.a-star.edu.sg> Signed-off-by: Phua Eu Gene <PHUA_Eu_Gene@dsi.a-star.edu.sg> Signed-off-by: Khin Mi Mi Aung <Mi_Mi_AUNG@dsi.a-star.edu.sg> Signed-off-by: Steve Dickson <steved@redhat.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2013-02-13nfsd: Handle kuids and kgids in the nfs4acl to posix_acl conversionEric W. Biederman
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" <bfields@fieldses.org> Cc: Trond Myklebust <Trond.Myklebust@netapp.com> Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
2012-10-13UAPI: (Scripted) Disintegrate include/linuxDavid Howells
Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Michael Kerrisk <mtk.manpages@gmail.com> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Acked-by: Dave Jones <davej@redhat.com>
2012-05-26NFSv4.1: Add DESTROY_CLIENTIDTrond Myklebust
Ensure that we destroy our lease on last unmount Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-05-25NFSv4.1: Move NFSPROC4_CLNT_BIND_CONN_TO_SESSION to the end of the operationsTrond Myklebust
For backward compatibility with nfs-utils. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> Cc: Weston Andros Adamson <dros@netapp.com>
2012-05-24nfs4.1: add BIND_CONN_TO_SESSION operationWeston Andros Adamson
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 <dros@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-05-24NFSv4.1 mdsthreshold attribute xdrAndy Adamson
We only support one layout type per file system, so one threshold_item4 per mdsthreshold4. Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-03-26Merge nfs containerization work from Trond's treeJ. Bruce Fields
The nfs containerization work is a prerequisite for Jeff Layton's reboot recovery rework.
2012-03-06NFSv4: Simplify the struct nfs4_stateidTrond Myklebust
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 <Trond.Myklebust@netapp.com>
2012-02-17nfsd41: implement NFS4_SHARE_WANT_NO_DELEG, NFS4_OPEN_DELEGATE_NONE_EXT, ↵Benny Halevy
why_no_deleg 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 <bhalevy@tonian.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2011-10-19nfsd4: implement new 4.1 open reclaim typesJ. Bruce Fields
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2011-08-27nfsd4: cleanup and consolidate seqid_mutating_errJ. Bruce Fields
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2011-07-31pnfs: GETDEVICELISTAndy Adamson
The block driver uses GETDEVICELIST Signed-off-by: Andy Adamson <andros@netapp.com> [pass struct nfs_server * to getdevicelist] [get machince creds for getdevicelist] [fix getdevicelist decode sizing] Signed-off-by: Benny Halevy <bhalevy@panasas.com> Signed-off-by: Benny Halevy <bhalevy@tonian.com> Signed-off-by: Jim Rees <rees@umich.edu> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2011-07-12NFS: added FREE_STATEID callBryan Schumaker
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 <bjschuma@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2011-07-12NFS: Added TEST_STATEID callBryan Schumaker
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 <bjschuma@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2011-07-12NFS: Add SECINFO_NO_NAME procedureBryan Schumaker
If the client is using NFS v4.1, then we can use SECINFO_NO_NAME to find the secflavor for the initial mount. If the server doesn't support SECINFO_NO_NAME then I fall back on the "guess and check" method used for v4.0 mounts. Signed-off-by: Bryan Schumaker <bjschuma@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2011-05-29Merge branch 'pnfs-submit' of git://git.open-osd.org/linux-open-osdLinus Torvalds
* 'pnfs-submit' of git://git.open-osd.org/linux-open-osd: (32 commits) pnfs-obj: pg_test check for max_io_size NFSv4.1: define nfs_generic_pg_test NFSv4.1: use pnfs_generic_pg_test directly by layout driver NFSv4.1: change pg_test return type to bool NFSv4.1: unify pnfs_pageio_init functions pnfs-obj: objlayout_encode_layoutcommit implementation pnfs: encode_layoutcommit pnfs-obj: report errors and .encode_layoutreturn Implementation. pnfs: encode_layoutreturn pnfs: layoutret_on_setattr pnfs: layoutreturn pnfs-obj: osd raid engine read/write implementation pnfs: support for non-rpc layout drivers pnfs-obj: define per-inode private structure pnfs: alloc and free layout_hdr layoutdriver methods pnfs-obj: objio_osd device information retrieval and caching pnfs-obj: decode layout, alloc/free lseg pnfs-obj: pnfs_osd XDR client implementation pnfs-obj: pnfs_osd XDR definitions pnfs-obj: objlayoutdriver module skeleton ...
2011-05-29Merge branch 'for-2.6.40' of git://linux-nfs.org/~bfields/linuxLinus Torvalds
* 'for-2.6.40' of git://linux-nfs.org/~bfields/linux: (22 commits) nfsd: make local functions static NFSD: Remove unused variable from nfsd4_decode_bind_conn_to_session() NFSD: Check status from nfsd4_map_bcts_dir() NFSD: Remove setting unused variable in nfsd_vfs_read() nfsd41: error out on repeated RECLAIM_COMPLETE nfsd41: compare request's opcnt with session's maxops at nfsd4_sequence nfsd v4.1 lOCKT clientid field must be ignored nfsd41: add flag checking for create_session nfsd41: make sure nfs server process OPEN with EXCLUSIVE4_1 correctly nfsd4: fix wrongsec handling for PUTFH + op cases nfsd4: make fh_verify responsibility of nfsd_lookup_dentry caller nfsd4: introduce OPDESC helper nfsd4: allow fh_verify caller to skip pseudoflavor checks nfsd: distinguish functions of NFSD_MAY_* flags svcrpc: complete svsk processing on cb receive failure svcrpc: take advantage of tcp autotuning SUNRPC: Don't wait for full record to receive tcp data svcrpc: copy cb reply instead of pages svcrpc: close connection if client sends short packet svcrpc: note network-order types in svc_process_calldir ...
2011-05-29pnfs: layoutreturnBenny Halevy
NFSv4.1 LAYOUTRETURN implementation Currently, does not support layout-type payload encoding. Signed-off-by: Alexandros Batsakis <batsakis@netapp.com> Signed-off-by: Andy Adamson <andros@citi.umich.edu> Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Dean Hildebrand <dhildeb@us.ibm.com> Signed-off-by: Fred Isaman <iisaman@citi.umich.edu> Signed-off-by: Fred Isaman <iisaman@netapp.com> Signed-off-by: Marc Eshel <eshel@almaden.ibm.com> Signed-off-by: Zhang Jingwang <zhangjingwang@nrchpc.ac.cn> [call pnfs_return_layout right before pnfs_destroy_layout] [remove assert_spin_locked from pnfs_clear_lseg_list] [remove wait parameter from the layoutreturn path.] [remove return_type field from nfs4_layoutreturn_args] [remove range from nfs4_layoutreturn_args] [no need to send layoutcommit from _pnfs_return_layout] [don't wait on sync layoutreturn] [fix layout stateid in layoutreturn args] [fixed NULL deref in _pnfs_return_layout] [removed recaim member of nfs4_layoutreturn_args] Signed-off-by: Benny Halevy <bhalevy@panasas.com>
2011-04-29nfsd41: add flag checking for create_sessionMi Jinlong
Teach the NFS server to reject invalid create_session flags. Also do some minor formatting adjustments. Signed-off-by: Mi Jinlong <mijinlong@cn.fujitsu.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2011-03-31Fix common misspellingsLucas De Marchi
Fixes generated by 'codespell' and manually reviewed. Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
2011-03-24Merge branch 'nfs-for-2.6.39' into nfs-for-nextTrond Myklebust
2011-03-24NFS: Add secinfo procedureBryan Schumaker
This patch adds the nfs4 operation secinfo as a valid nfs rpc operation. Signed-off-by: Bryan Schumaker <bjschuma@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2011-03-23NFSv4.1: layoutcommitAndy Adamson
The filelayout driver sends LAYOUTCOMMIT only when COMMIT goes to the data server (as opposed to the MDS) and the data server WRITE is not NFS_FILE_SYNC. Only whole file layout support means that there is only one IOMODE_RW layout segment. Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Alexandros Batsakis <batsakis@netapp.com> Signed-off-by: Boaz Harrosh <bharrosh@panasas.com> Signed-off-by: Dean Hildebrand <dhildeb@us.ibm.com> Signed-off-by: Fred Isaman <iisaman@citi.umich.edu> Signed-off-by: Mingyang Guo <guomingyang@nrchpc.ac.cn> Signed-off-by: Tao Guo <guotao@nrchpc.ac.cn> Signed-off-by: Zhang Jingwang <zhangjingwang@nrchpc.ac.cn> Tested-by: Boaz Harrosh <bharrosh@panasas.com> Signed-off-by: Benny Halevy <bhalevy@panasas.com> Signed-off-by: Fred Isaman <iisaman@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2011-01-14Merge branch 'for-2.6.38' of git://linux-nfs.org/~bfields/linuxLinus Torvalds
* 'for-2.6.38' of git://linux-nfs.org/~bfields/linux: (62 commits) nfsd4: fix callback restarting nfsd: break lease on unlink, link, and rename nfsd4: break lease on nfsd setattr nfsd: don't support msnfs export option nfsd4: initialize cb_per_client nfsd4: allow restarting callbacks nfsd4: simplify nfsd4_cb_prepare nfsd4: give out delegations more quickly in 4.1 case nfsd4: add helper function to run callbacks nfsd4: make sure sequence flags are set after destroy_session nfsd4: re-probe callback on connection loss nfsd4: set sequence flag when backchannel is down nfsd4: keep finer-grained callback status rpc: allow xprt_class->setup to return a preexisting xprt rpc: keep backchannel xprt as long as server connection rpc: move sk_bc_xprt to svc_xprt nfsd4: allow backchannel recovery nfsd4: support BIND_CONN_TO_SESSION nfsd4: modify session list under cl_lock Documentation: fl_mylease no longer exists ... Fix up conflicts in fs/nfsd/vfs.c with the vfs-scale work. The vfs-scale work touched some msnfs cases, and this merge removes support for that entirely, so the conflict was trivial to resolve.
2011-01-11nfsd4: support BIND_CONN_TO_SESSIONJ. Bruce Fields
Basic xdr and processing for BIND_CONN_TO_SESSION. This adds a connection to the list of connections associated with a session. Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2011-01-11NFS fix the setting of exchange id flagAndy Adamson
Indicate support for referrals. Do not set any PNFS roles. Check the flags returned by the server for validity. Do not use exchange flags from an old client ID instance when recovering a client ID. Update the EXCHID4_FLAG_XXX set to RFC 5661. Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2010-12-17nfsd4: implement secinfo_no_nameJ. Bruce Fields
Implementation of this operation is mandatory for NFSv4.1. Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2010-10-26Merge branch 'for-2.6.37' of git://linux-nfs.org/~bfields/linuxLinus Torvalds
* 'for-2.6.37' of git://linux-nfs.org/~bfields/linux: (99 commits) svcrpc: svc_tcp_sendto XPT_DEAD check is redundant svcrpc: no need for XPT_DEAD check in svc_xprt_enqueue svcrpc: assume svc_delete_xprt() called only once svcrpc: never clear XPT_BUSY on dead xprt nfsd4: fix connection allocation in sequence() nfsd4: only require krb5 principal for NFSv4.0 callbacks nfsd4: move minorversion to client nfsd4: delay session removal till free_client nfsd4: separate callback change and callback probe nfsd4: callback program number is per-session nfsd4: track backchannel connections nfsd4: confirm only on succesful create_session nfsd4: make backchannel sequence number per-session nfsd4: use client pointer to backchannel session nfsd4: move callback setup into session init code nfsd4: don't cache seq_misordered replies SUNRPC: Properly initialize sock_xprt.srcaddr in all cases SUNRPC: Use conventional switch statement when reclassifying sockets sunrpc/xprtrdma: clean up workqueue usage sunrpc: Turn list_for_each-s into the ..._entry-s ... Fix up trivial conflicts (two different deprecation notices added in separate branches) in Documentation/feature-removal-schedule.txt
2010-10-24NFSv4.1: pnfs: add LAYOUTGET and GETDEVICEINFO infrastructureAndy Adamson
Add the ability to actually send LAYOUTGET and GETDEVICEINFO. This also adds in the machinery to handle layout state and the deviceid cache. Note that GETDEVICEINFO is not called directly by the generic layer. Instead it is called by the drivers while parsing the LAYOUTGET opaque data in response to an unknown device id embedded therein. RFC 5661 only encodes device ids within the driver-specific opaque data. Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Dean Hildebrand <dhildebz@umich.edu> Signed-off-by: Marc Eshel <eshel@almaden.ibm.com> Signed-off-by: Mike Sager <sager@netapp.com> Signed-off-by: Ricardo Labiaga <ricardo.labiaga@netapp.com> Signed-off-by: Tao Guo <guotao@nrchpc.ac.cn> Signed-off-by: Boaz Harrosh <bharrosh@panasas.com> Signed-off-by: Fred Isaman <iisaman@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2010-10-24NFS: change stateid to be a unionAlexandros Batsakis
In NFSv4.1 the stateid consists of the other and seqid fields. For layout processing we need to numerically compare the seqid value of layout stateids. To do so, introduce a union to nfs4_stateid to switch between opaque(16 bytes) and opaque(12 bytes) / __be32 Signed-off-by: Alexandros Batsakis <batsakis@netapp.com> Signed-off-by: Benny Halevy <bhalevy@panasas.com> Signed-off-by: Fred Isaman <iisaman@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2010-10-24NFSv4.1: pnfsd, pnfs: protocol level pnfs constantsDean Hildebrand
Use only layoutreturn constant for both returns and recalls. (return_* works better for recall_type rather the other way around) Signed-off-by: Dean Hildebrand <dhildebz@umich.edu> Signed-off-by: Marc Eshel <eshel@almaden.ibm.com> Signed-off-by: Benny Halevy <bhalevy@panasas.com> Signed-off-by: Fred Isaman <iisaman@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2010-10-01nfsd4: keep per-session list of connectionsJ. Bruce Fields
The spec requires us in various places to keep track of the connections associated with each session. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
2010-07-30NFSv4: Add support for the RELEASE_LOCKOWNER operationTrond Myklebust
This is needed by NFSv4.0 servers in order to keep the number of locking stateids at a manageable level. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2009-12-05nfs41: RECLAIM_COMPLETE XDR functionalityRicardo Labiaga
XDR encoding and decoding for RECLAIM_COMPLETE. Implements the necessary encoding to indicate reclaim complete for the entire client. In the future, it can be extended to provide reclaim complete functionality for a single file system after migration. Signed-off-by: Ricardo Labiaga <Ricardo.Labiaga@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2009-12-05nfs41: check SEQUENCE status flagAlexandros Batsakis
the server can indicate a number of error conditions by setting the appropriate bits in the SEQUENCE operation. The client re-establishes state with the server when it receives one of those, with the action depending on the specific case. Signed-off-by: Alexandros Batsakis <batsakis@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2009-09-22Merge branch 'for-2.6.32' of git://linux-nfs.org/~bfields/linuxLinus Torvalds
* 'for-2.6.32' of git://linux-nfs.org/~bfields/linux: (68 commits) nfsd4: nfsv4 clients should cross mountpoints nfsd: revise 4.1 status documentation sunrpc/cache: avoid variable over-loading in cache_defer_req sunrpc/cache: use list_del_init for the list_head entries in cache_deferred_req nfsd: return success for non-NFS4 nfs4_state_start nfsd41: Refactor create_client() nfsd41: modify nfsd4.1 backchannel to use new xprt class nfsd41: Backchannel: Implement cb_recall over NFSv4.1 nfsd41: Backchannel: cb_sequence callback nfsd41: Backchannel: Setup sequence information nfsd41: Backchannel: Server backchannel RPC wait queue nfsd41: Backchannel: Add sequence arguments to callback RPC arguments nfsd41: Backchannel: callback infrastructure nfsd4: use common rpc_cred for all callbacks nfsd4: allow nfs4 state startup to fail SUNRPC: Defer the auth_gss upcall when the RPC call is asynchronous nfsd4: fix null dereference creating nfsv4 callback client nfsd4: fix whitespace in NFSPROC4_CLNT_CB_NULL definition nfsd41: sunrpc: add new xprt class for nfsv4.1 backchannel sunrpc/cache: simplify cache_fresh_locked and cache_fresh_unlocked. ...
2009-09-08NFS: Allow the "nfs" file system type to support NFSv4Chuck Lever
When mounting an "nfs" type file system, recognize "v4," "vers=4," or "nfsvers=4" mount options, and convert the file system to "nfs4" under the covers. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> [trondmy: fixed up binary mount code so it sets the 'version' field too] Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2009-07-10nfsd41: gather and report statistics also for v4.1 opsBenny Halevy
Signed-off-by: Benny Halevy <bhalevy@panasas.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
2009-06-17nfs41: create_session operationAndy Adamson
Implement the create_session operation conforming to http://tools.ietf.org/html/draft-ietf-nfsv4-minorversion1-26 Set the real fore channel max operations to preserve server resources. Note: If the server returns < NFS4_MAX_OPS, the client will very soon get an NFS4ERR_TOO_MANY_OPS. A later patch will handle this. Set the max_rqst_sz and max_resp_sz to PAGE_SIZE - we preallocate the buffers. Set the back channel max_resp_sz_cached to zero to force the client to always set csa_cachethis to FALSE because the current implementation of the back channel DRC only supports caching the CB_SEQUENCE operation. The client back channel server supports one slot, and desires 2 operations per compound. Signed-off-by: Ricardo Labiaga <ricardo.labiaga@netapp.com> Signed-off-by: Andy Adamson<andros@umich.edu> Signed-off-by: Benny Halevy <bhalevy@panasas.com> [nfs41: remove extraneous rpc_clnt pointer] Use the struct nfs_client cl_rpcclient. Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Benny Halevy <bhalevy@panasas.com> [nfs41: nfs4_init_channel_attrs, just use nfs41_create_session_args] Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Benny Halevy <bhalevy@panasas.com> [nfs41: use rsize and wsize for session channel attributes] Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Benny Halevy <bhalevy@panasas.com> [nfs41: set channel max operations] Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Benny Halevy <bhalevy@panasas.com> [nfs41: set back channel attributes] Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Benny Halevy <bhalevy@panasas.com> [nfs41: obliterate nfs4_adjust_channel_attrs] Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Benny Halevy <bhalevy@panasas.com> [nfs41: have create_session work on nfs_client] Signed-off-by: Benny Halevy <bhalevy@panasas.com> [nfs41: move CONFIG_NFS_V4_1 endif] Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Benny Halevy <bhalevy@panasas.com> [nfs41: pass *session in seq_args and seq_res] [moved nfs4_init_slot_table definition here] Signed-off-by: Benny Halevy <bhalevy@panasas.com> [nfs41: use kcalloc to allocate slot table] Signed-off-by: Benny Halevy <bhalevy@panasas.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> [nfs41: fix Xcode_create_session's xdr Xcoding pointer type] [nfs41: refactor decoding of channel attributes] Signed-off-by: Benny Halevy <bhalevy@panasas.com>
2009-06-17nfs41: exchange_id operationBenny Halevy
Implement the exchange_id operation conforming to http://tools.ietf.org/html/draft-ietf-nfsv4-minorversion1-26 Unlike NFSv4.0, NFSv4.1 requires machine credentials. RPC_AUTH_GSS machine credentials will be passed into the kernel at mount time to be available for the exchange_id operation. RPC_AUTH_UNIX root mounts can use the UNIX root credential. Store the root credential in the nfs_client struct. Without a credential, NFSv4.1 state renewal fails. [nfs41: establish clientid via exchange id only if cred != NULL] Signed-off-by: Andy Adamson<andros@umich.edu> Signed-off-by: Benny Halevy <bhalevy@panasas.com> [nfsd41: move nfstime4 from under CONFIG_NFS_V4_1] Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Benny Halevy <bhalevy@panasas.com> [nfs41: do not wait a lease time in exchange id] Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Benny Halevy <bhalevy@panasas.com> [nfs41: pass *session in seq_args and seq_res] Signed-off-by: Benny Halevy <bhalevy@panasas.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> [nfs41: Ignoring impid in decode_exchange_id is missing a READ_BUF] Signed-off-by: Benny Halevy <bhalevy@panasas.com> [nfs41: fix Xcode_exchange_id's xdr Xcoding pointer type] [nfs41: get rid of unused struct nfs41_exchange_id_res members] Signed-off-by: Benny Halevy <bhalevy@panasas.com>
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