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* nfsd: don't break lease on CLAIM_DELEGATE_CURCasey Bodley2011-07-231-6/+12
| | | | | | | | | | | | | | CLAIM_DELEGATE_CUR is used in response to a broken lease; allowing it to break the lease and return EAGAIN leaves the client unable to make progress in returning the delegation nfs4_get_vfs_file() now takes struct nfsd4_open for access to the claim type, and calls nfsd_open() with NFSD_MAY_NOT_BREAK_LEASE when claim type is CLAIM_DELEGATE_CUR Signed-off-by: Casey Bodley <cbodley@citi.umich.edu> Cc: stable@kernel.org Signed-off-by: J. Bruce Fields <bfields@redhat.com>
* locks: rename lock-manager opsJ. Bruce Fields2011-07-201-2/+2
| | | | | | | | | | | Both the filesystem and the lock manager can associate operations with a lock. Confusingly, one of them (fl_release_private) actually has the same name in both operation structures. It would save some confusion to give the lock-manager ops different names. Signed-off-by: J. Bruce Fields <bfields@redhat.com>
* nfsd41: check the size of requestMi Jinlong2011-07-151-0/+12
| | | | | | | | Check in SEQUENCE that the request doesn't exceed maxreq_sz for the given session. Signed-off-by: Mi Jinlong <mijinlong@cn.fujitsu.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
* nfsd41: error out when client sets maxreq_sz or maxresp_sz too smallMi Jinlong2011-07-151-0/+27
| | | | | | | | | | | | | | | According to RFC5661, 18.36.3, "if the client selects a value for ca_maxresponsesize such that a replier on a channel could never send a response,the server SHOULD return NFS4ERR_TOOSMALL in the CREATE_SESSION reply." So, error out when the client sets a maxreq_sz less than the minimum possible SEQUENCE request size, or sets a maxresp_sz less than the minimum possible SEQUENCE reply size. Signed-off-by: Mi Jinlong <mijinlong@cn.fujitsu.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
* nfsd4: fix file leak on open_downgradeJ. Bruce Fields2011-07-151-23/+8
| | | | | | | | | | | | | | | | | | | | Stateid's hold a read reference for a read open, a write reference for a write open, and an additional one of each for each read+write open. The latter wasn't getting put on a downgrade, so something like: open RW open R downgrade to R was resulting in a file leak. Also fix an imbalance in an error path. Regression from 7d94784293096c0a46897acdb83be5abd9278ece "nfsd4: fix downgrade/lock logic". Cc: stable@kernel.org Signed-off-by: J. Bruce Fields <bfields@redhat.com>
* nfsd4: remember to put RW access on stateid destructionJ. Bruce Fields2011-07-151-11/+6
| | | | | | | | | | | | | | | | Without this, for example, open read open read+write close will result in a struct file leak. Regression from 7d94784293096c0a46897acdb83be5abd9278ece "nfsd4: fix downgrade/lock logic". Cc: stable@kernel.org Signed-off-by: J. Bruce Fields <bfields@redhat.com>
* NFSD: Added TEST_STATEID operationBryan Schumaker2011-07-151-0/+38
| | | | | | | | This operation is used by the client to check the validity of a list of stateids. Signed-off-by: Bryan Schumaker <bjschuma@netapp.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
* NFSD: added FREE_STATEID operationBryan Schumaker2011-07-151-0/+118
| | | | | | | | This operation is used by the client to tell the server to free a stateid. Signed-off-by: Bryan Schumaker <bjschuma@netapp.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
* Merge branch 'for-2.6.40' of git://linux-nfs.org/~bfields/linuxLinus Torvalds2011-05-291-9/+33
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * '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 ...
| * nfsd: make local functions staticDaniel Mack2011-05-181-2/+2
| | | | | | | | | | | | | | | | | | | | This also fixes a number of sparse warnings. Signed-off-by: Daniel Mack <zonque@gmail.com> Cc: Trond Myklebust <Trond.Myklebust@netapp.com> Cc: J. Bruce Fields <bfields@fieldses.org> Cc: Neil Brown <neilb@suse.de> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
| * NFSD: Check status from nfsd4_map_bcts_dir()Bryan Schumaker2011-04-291-2/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | Compiling gave me this warning: fs/nfsd/nfs4state.c: In function ‘nfsd4_bind_conn_to_session’: fs/nfsd/nfs4state.c:1623:9: warning: variable ‘status’ set but not used [-Wunused-but-set-variable] The local variable "status" was being set by nfsd4_map_bcts_dir() and then ignored before calling nfsd4_new_conn(). Signed-off-by: Bryan Schumaker <bjschuma@netapp.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
| * nfsd41: error out on repeated RECLAIM_COMPLETEMi Jinlong2011-04-291-5/+14
| | | | | | | | | | | | | | | | Servers are supposed to return nfserr_complete_already to clients that attempt to send multiple RECLAIM_COMPLETEs. Signed-off-by: Mi Jinlong <mijinlong@cn.fujitsu.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
| * nfsd41: compare request's opcnt with session's maxops at nfsd4_sequenceMi Jinlong2011-04-291-0/+11
| | | | | | | | | | | | | | | | | | Make sure nfs server errors out if request contains more ops than channel allows. Signed-off-by: Mi Jinlong <mijinlong@cn.fujitsu.com> [bfields@redhat.com: use helper function] Signed-off-by: J. Bruce Fields <bfields@redhat.com>
| * nfsd41: add flag checking for create_sessionMi Jinlong2011-04-291-0/+3
| | | | | | | | | | | | | | | | | | 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>
* | nfsd4: Fix filp leakOGAWA Hirofumi2011-04-191-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | 23fcf2ec93fb8573a653408316af599939ff9a8e (nfsd4: fix oops on lock failure) The above patch breaks free path for stp->st_file. If stp was inserted into sop->so_stateids, we have to free stp->st_file refcount. Because stp->st_file refcount itself is taken whether or not any refcounts are taken on the stp->st_file->fi_fds[]. Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> Cc: stable@kernel.org Signed-off-by: J. Bruce Fields <bfields@redhat.com>
* | nfsd4: fix struct file leak on delegationJ. Bruce Fields2011-04-181-0/+1
| | | | | | | | | | | | | | | | Introduced by acfdf5c383b38f7f4dddae41b97c97f1ae058f49. Cc: stable@kernel.org Reported-by: Gerhard Heift <ml-nfs-linux-20110412-ef47@gheift.de> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
* | Merge branch 'for-2.6.39' of git://linux-nfs.org/~bfields/linuxLinus Torvalds2011-04-111-3/+6
|\ \ | | | | | | | | | | | | | | | * 'for-2.6.39' of git://linux-nfs.org/~bfields/linux: nfsd4: fix oops on lock failure nfsd: fix auth_domain reference leak on nlm operations
| * | nfsd4: fix oops on lock failureJ. Bruce Fields2011-04-101-3/+6
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Lock stateid's can have access_bmap 0 if they were only partially initialized (due to a failed lock request); handle that case in free_generic_stateid. ------------[ cut here ]------------ kernel BUG at fs/nfsd/nfs4state.c:380! invalid opcode: 0000 [#1] SMP last sysfs file: /sys/kernel/mm/ksm/run Modules linked in: nfs fscache md4 nls_utf8 cifs ip6table_filter ip6_tables ebtable_nat ebtables ipt_MASQUERADE iptable_nat nf_nat bridge stp llc nfsd lockd nfs_acl auth_rpcgss sunrpc ipv6 ppdev parport_pc parport pcnet32 mii pcspkr microcode i2c_piix4 BusLogic floppy [last unloaded: mperf] Pid: 1468, comm: nfsd Not tainted 2.6.38+ #120 VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform EIP: 0060:[<e24f180d>] EFLAGS: 00010297 CPU: 0 EIP is at nfs4_access_to_omode+0x1c/0x29 [nfsd] EAX: ffffffff EBX: dd758120 ECX: 00000000 EDX: 00000004 ESI: dd758120 EDI: ddfe657c EBP: dd54dde0 ESP: dd54dde0 DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 Process nfsd (pid: 1468, ti=dd54c000 task=ddc92580 task.ti=dd54c000) Stack: dd54ddf0 e24f19ca 00000000 ddfe6560 dd54de08 e24f1a5d dd758130 deee3a20 ddfe6560 31270000 dd54df1c e24f52fd 0000000f dd758090 e2505dd0 0be304cf dbb51d68 0000000e ddfe657c ddcd8020 dd758130 dd758128 dd7580d8 dd54de68 Call Trace: [<e24f19ca>] free_generic_stateid+0x1c/0x3e [nfsd] [<e24f1a5d>] release_lockowner+0x71/0x8a [nfsd] [<e24f52fd>] nfsd4_lock+0x617/0x66c [nfsd] [<e24e57b6>] ? nfsd_setuser+0x199/0x1bb [nfsd] [<e24e056c>] ? nfsd_setuser_and_check_port+0x65/0x81 [nfsd] [<c07a0052>] ? _cond_resched+0x8/0x1c [<c04ca61f>] ? slab_pre_alloc_hook.clone.33+0x23/0x27 [<c04cac01>] ? kmem_cache_alloc+0x1a/0xd2 [<c04835a0>] ? __call_rcu+0xd7/0xdd [<e24e0dfb>] ? fh_verify+0x401/0x452 [nfsd] [<e24f0b61>] ? nfsd4_encode_operation+0x52/0x117 [nfsd] [<e24ea0d7>] ? nfsd4_putfh+0x33/0x3b [nfsd] [<e24f4ce6>] ? nfsd4_delegreturn+0xd4/0xd4 [nfsd] [<e24ea2c9>] nfsd4_proc_compound+0x1ea/0x33e [nfsd] [<e24de6ee>] nfsd_dispatch+0xd1/0x1a5 [nfsd] [<e1d6e1c7>] svc_process_common+0x282/0x46f [sunrpc] [<e1d6e578>] svc_process+0xdc/0xfa [sunrpc] [<e24de0fa>] nfsd+0xd6/0x115 [nfsd] [<e24de024>] ? nfsd_shutdown+0x24/0x24 [nfsd] [<c0454322>] kthread+0x62/0x67 [<c04542c0>] ? kthread_worker_fn+0x114/0x114 [<c07a6ebe>] kernel_thread_helper+0x6/0x10 Code: eb 05 b8 00 00 27 4f 8d 65 f4 5b 5e 5f 5d c3 83 e0 03 55 83 f8 02 89 e5 74 17 83 f8 03 74 05 48 75 09 eb 09 b8 02 00 00 00 eb 0b <0f> 0b 31 c0 eb 05 b8 01 00 00 00 5d c3 55 89 e5 57 56 89 d6 8d EIP: [<e24f180d>] nfs4_access_to_omode+0x1c/0x29 [nfsd] SS:ESP 0068:dd54dde0 ---[ end trace 2b0bf6c6557cb284 ]--- The trace route is: -> nfsd4_lock() -> if (lock->lk_is_new) { -> alloc_init_lock_stateid() 3739: stp->st_access_bmap = 0; ->if (status && lock->lk_is_new && lock_sop) -> release_lockowner() -> free_generic_stateid() -> nfs4_access_bmap_to_omode() -> nfs4_access_to_omode() 380: BUG(); ***** This problem was introduced by 0997b173609b9229ece28941c118a2a9b278796e. Reported-by: Mi Jinlong <mijinlong@cn.fujitsu.com> Tested-by: Mi Jinlong <mijinlong@cn.fujitsu.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
* | Fix common misspellingsLucas De Marchi2011-03-311-2/+2
|/ | | | | | Fixes generated by 'codespell' and manually reviewed. Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
* Merge create_session decoding fix into for-2.6.39J. Bruce Fields2011-03-171-6/+7
|\ | | | | | | This needs a further fixup!
| * nfsd4: fix bad pointer on failure to find delegationJ. Bruce Fields2011-03-071-6/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In case of a nonempty list, the return on error here is obviously bogus; it ends up being a pointer to the list head instead of to any valid delegation on the list. In particular, if nfsd4_delegreturn() hits this case, and you're quite unlucky, then renew_client may oops, and it may take an embarassingly long time to figure out why. Facepalm. BUG: unable to handle kernel NULL pointer dereference at 0000000000000090 IP: [<ffffffff81292965>] nfsd4_delegreturn+0x125/0x200 ... Cc: stable@kernel.org Signed-off-by: J. Bruce Fields <bfields@redhat.com>
* | nfs41: make sure nfs server return right ca_maxresponsesize_cachedMi Jinlong2011-03-161-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | According to rfc5661, ca_maxresponsesize_cached: Like ca_maxresponsesize, but the maximum size of a reply that will be stored in the reply cache (Section 2.10.6.1). For each channel, the server MAY decrease this value, but MUST NOT increase it. the latest kernel(2.6.38-rc8) may increase the value for ignoring request's ca_maxresponsesize_cached value. We should not ignore it. Signed-off-by: Mi Jinlong <mijinlong@cn.fujitsu.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
* | nfsd4: fix struct file leakJ. Bruce Fields2011-03-081-11/+21
| | | | | | | | | | | | | | | | | | | | | | | | Make sure we properly reference count the struct files that a lock depends on, and release them when the lock stateid is released. This fixes a major leak of struct files when using locking over nfsv4. Cc: stable@kernel.org Reported-by: Rick Koshi <nfs-bug-report@more-right-rudder.com> Tested-by: Ivo Přikryl <prikryl@eurosat.cz> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
* | nfsd4: minor nfs4state.c reshufflingJ. Bruce Fields2011-03-081-64/+61
| | | | | | | | | | | | | | | | Minor cleanup in preparation for a bugfix--moving some code to avoid forward references, etc. No change in functionality. Cc: stable@kernel.org Signed-off-by: J. Bruce Fields <bfields@redhat.com>
* | nfsd: kill unused macro definitionShan Wei2011-03-071-1/+1
|/ | | | | | | | These macros had never been used for several years. So, remove them. Signed-off-by: Shan Wei <shanwei@cn.fujitsu.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
* nfsd4: acquire only one lease per fileJ. Bruce Fields2011-02-141-40/+55
| | | | | | | | | | | | | | | | | | | | | Instead of acquiring one lease each time another client opens a file, nfsd can acquire just one lease to represent all of them, and reference count it to determine when to release it. This fixes a regression introduced by c45821d263a8a5109d69a9e8942b8d65bcd5f31a "locks: eliminate fl_mylease callback": after that patch, only the struct file * is used to determine who owns a given lease. But since we recently converted the server to share a single struct file per open, if we acquire multiple leases on the same file from nfsd, it then becomes impossible on unlocking a lease to determine which of those leases (all of whom share the same struct file *) we meant to remove. Thanks to Takashi Iwai <tiwai@suse.de> for catching a bug in a previous version of this patch. Tested-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
* nfsd4: modify fi_delegations under recall_lockJ. Bruce Fields2011-02-141-4/+4
| | | | | | | | | Modify fi_delegations only under the recall_lock, allowing us to use that list on lease breaks. Also some trivial cleanup to simplify later changes. Signed-off-by: J. Bruce Fields <bfields@redhat.com>
* nfsd4: remove unused deleg dprintk's.J. Bruce Fields2011-02-141-4/+0
| | | | | | These aren't all that useful, and get in the way of the next steps. Signed-off-by: J. Bruce Fields <bfields@redhat.com>
* nfsd4: split lease setting into separate functionJ. Bruce Fields2011-02-141-13/+19
| | | | | | | Splitting some code into a separate function which we'll be adding some more to. Signed-off-by: J. Bruce Fields <bfields@redhat.com>
* nfsd4: fix leak on allocation errorJ. Bruce Fields2011-02-141-8/+10
| | | | | | Also share some common exit code. Signed-off-by: J. Bruce Fields <bfields@redhat.com>
* nfsd4: add helper function for lease setupJ. Bruce Fields2011-02-141-12/+21
| | | | Signed-off-by: J. Bruce Fields <bfields@redhat.com>
* nfsd4: split up nfsd_break_deleg_cbJ. Bruce Fields2011-02-141-18/+16
| | | | | | We'll be adding some more code here soon. Signed-off-by: J. Bruce Fields <bfields@redhat.com>
* Merge branch 'for-2.6.38' of git://linux-nfs.org/~bfields/linuxLinus Torvalds2011-01-141-98/+145
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * '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.
| * nfsd4: allow restarting callbacksJ. Bruce Fields2011-01-111-0/+1
| | | | | | | | | | | | | | | | | | | | If we lose the backchannel and then the client repairs the problem, resend any callbacks. We use a new cb_done flag to track whether there is still work to be done for the callback or whether it can be destroyed with the rpc. Signed-off-by: J. Bruce Fields <bfields@redhat.com>
| * nfsd4: give out delegations more quickly in 4.1 caseJ. Bruce Fields2011-01-111-2/+15
| | | | | | | | Signed-off-by: J. Bruce Fields <bfields@redhat.com>
| * nfsd4: make sure sequence flags are set after destroy_sessionJ. Bruce Fields2011-01-111-2/+1
| | | | | | | | | | | | | | If this loses any backchannel, make sure we have a chance to notice that and set the sequence flags. Signed-off-by: J. Bruce Fields <bfields@redhat.com>
| * nfsd4: re-probe callback on connection lossJ. Bruce Fields2011-01-111-1/+1
| | | | | | | | | | | | This makes sure we set the sequence flag when necessary. Signed-off-by: J. Bruce Fields <bfields@redhat.com>
| * nfsd4: set sequence flag when backchannel is downJ. Bruce Fields2011-01-111-1/+5
| | | | | | | | | | | | Implement the SEQ4_STATUS_CB_PATH_DOWN flag. Signed-off-by: J. Bruce Fields <bfields@redhat.com>
| * nfsd4: keep finer-grained callback statusJ. Bruce Fields2011-01-111-4/+4
| | | | | | | | | | | | | | | | | | Distinguish between when the callback channel is known to be down, and when it is not yet confirmed. This will be useful in the 4.1 case. Also, we don't seem to be using the fact that this field is atomic. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
| * nfsd4: allow backchannel recoveryJ. Bruce Fields2011-01-111-6/+10
| | | | | | | | | | | | | | | | | | Now that we have a list of connections to choose from, we can teach the callback code to just pick a suitable connection and use that, instead of insisting on forever using the connection that the first create_session was sent with. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
| * nfsd4: support BIND_CONN_TO_SESSIONJ. Bruce Fields2011-01-111-6/+53
| | | | | | | | | | | | | | 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>
| * nfsd4: modify session list under cl_lockJ. Bruce Fields2011-01-111-0/+6
| | | | | | | | | | | | We want to traverse this from the callback code. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
| * nfs4: set source address when callback is generatedTakuma Umeya2011-01-041-3/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | when callback is generated in NFSv4 server, it doesn't set the source address. When an alias IP is utilized on NFSv4 server and suppose the client is accessing via that alias IP (e.g. eth0:0), the client invokes the callback to the IP address that is set on the original device (e.g. eth0). This behavior results in timeout of xprt. The patch sets the IP address that the client should invoke callback to. Signed-off-by: Takuma Umeya <tumeya@redhat.com> [bfields@redhat.com: Simplify gen_callback arguments, use helper function] Signed-off-by: J. Bruce Fields <bfields@redhat.com>
| * locks: eliminate fl_mylease callbackJ. Bruce Fields2011-01-041-20/+1
| | | | | | | | | | | | | | | | | | | | The nfs server only supports read delegations for now, so we don't care how conflicts are determined. All we care is that unlocks are recognized as matching the leases they are meant to remove. After the last patch, a comparison of struct files will work for that purpose. So we no longer need this callback. Signed-off-by: J. Bruce Fields <bfields@redhat.com>
| * nfsd4: use a single struct file for delegationsJ. Bruce Fields2011-01-041-5/+5
| | | | | | | | | | | | | | | | | | When we converted to sharing struct filess between nfs4 opens I went too far and also used the same mechanism for delegations. But keeping a reference to the struct file ensures it will outlast the lease, and allows us to remove the lease with the same file as we added it. Signed-off-by: J. Bruce Fields <bfields@redhat.com>
| * nfsd4: eliminate lease delete callbackJ. Bruce Fields2011-01-041-18/+0
| | | | | | | | | | | | | | nfsd controls the lifetime of the lease, not the lock code, so there's no need for this callback on lease destruction. Signed-off-by: J. Bruce Fields <bfields@redhat.com>
| * nfsd: remove some unnecessary dropit handlingJ. Bruce Fields2011-01-041-2/+0
| | | | | | | | | | | | We no longer need a few of these special cases. Signed-off-by: J. Bruce Fields <bfields@redhat.com>
| * nfsd4: fix mixed 4.0/4.1 handling, 4.1 rebootJ. Bruce Fields2010-12-171-20/+17
| | | | | | | | | | | | | | | | | | | | | | | | | | Instead of failing to find client entries which don't match the minorversion, we should be finding them, then either erroring out or expiring them as appropriate. This also fixes a problem which would cause the 4.1 server to fail to recognize clients after a second reboot. Reported-by: Casey Bodley <cbodley@citi.umich.edu> Reviewed-by: Benny Halevy <bhalevy@panasas.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
| * nfsd4: replace unintuitive match_clientid_establishmentJ. Bruce Fields2010-12-171-10/+4
| | | | | | | | | | Reviewed-by: Benny Halevy <bhalevy@panasas.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
| * Merge commit 'v2.6.37-rc6' into for-2.6.38J. Bruce Fields2010-12-171-4/+4
| |\
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