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* Merge branch 'for-3.4' of git://linux-nfs.org/~bfields/linuxLinus Torvalds2012-03-2916-276/+1311
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull nfsd changes from Bruce Fields: Highlights: - Benny Halevy and Tigran Mkrtchyan implemented some more 4.1 features, moving us closer to a complete 4.1 implementation. - Bernd Schubert fixed a long-standing problem with readdir cookies on ext2/3/4. - Jeff Layton performed a long-overdue overhaul of the server reboot recovery code which will allow us to deprecate the current code (a rather unusual user of the vfs), and give us some needed flexibility for further improvements. - Like the client, we now support numeric uid's and gid's in the auth_sys case, allowing easier upgrades from NFSv2/v3 to v4.x. Plus miscellaneous bugfixes and cleanup. Thanks to everyone! There are also some delegation fixes waiting on vfs review that I suppose will have to wait for 3.5. With that done I think we'll finally turn off the "EXPERIMENTAL" dependency for v4 (though that's mostly symbolic as it's been on by default in distro's for a while). And the list of 4.1 todo's should be achievable for 3.5 as well: http://wiki.linux-nfs.org/wiki/index.php/Server_4.0_and_4.1_issues though we may still want a bit more experience with it before turning it on by default. * 'for-3.4' of git://linux-nfs.org/~bfields/linux: (55 commits) nfsd: only register cld pipe notifier when CONFIG_NFSD_V4 is enabled nfsd4: use auth_unix unconditionally on backchannel nfsd: fix NULL pointer dereference in cld_pipe_downcall nfsd4: memory corruption in numeric_name_to_id() sunrpc: skip portmap calls on sessions backchannel nfsd4: allow numeric idmapping nfsd: don't allow legacy client tracker init for anything but init_net nfsd: add notifier to handle mount/unmount of rpc_pipefs sb nfsd: add the infrastructure to handle the cld upcall nfsd: add a header describing upcall to nfsdcld nfsd: add a per-net-namespace struct for nfsd sunrpc: create nfsd dir in rpc_pipefs nfsd: add nfsd4_client_tracking_ops struct and a way to set it nfsd: convert nfs4_client->cl_cb_flags to a generic flags field NFSD: Fix nfs4_verifier memory alignment NFSD: Fix warnings when NFSD_DEBUG is not defined nfsd: vfs_llseek() with 32 or 64 bit offsets (hashes) nfsd: rename 'int access' to 'int may_flags' in nfsd_open() ext4: return 32/64-bit dir name hash according to usage type fs: add new FMODE flags: FMODE_32bithash and FMODE_64bithash ...
| * nfsd: only register cld pipe notifier when CONFIG_NFSD_V4 is enabledJeff Layton2012-03-294-5/+21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Otherwise, we get a warning or error similar to this when building with CONFIG_NFSD_V4 disabled: ERROR: "nfsd4_cld_block" [fs/nfsd/nfsd.ko] undefined! Fix this by wrapping the calls to rpc_pipefs_notifier_register and ..._unregister in another function and providing no-op replacements when CONFIG_NFSD_V4 is disabled. Reported-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
| * nfsd4: use auth_unix unconditionally on backchannelJ. Bruce Fields2012-03-281-1/+2
| | | | | | | | | | | | | | | | | | | | | | This isn't actually correct, but it works with the Linux client, and agrees with the behavior we used to have before commit 80fc015bdfe. Later patches will implement the spec-mandated behavior (which is to use the security parameters explicitly given by the client in create_session or backchannel_ctl). Signed-off-by: J. Bruce Fields <bfields@redhat.com>
| * nfsd: fix NULL pointer dereference in cld_pipe_downcallJeff Layton2012-03-281-2/+1
| | | | | | | | | | | | | | | | | | | | If we find that "cup" is NULL in this case, then we obviously don't want to dereference it. What we really want to print in this case is the xid that we copied off earlier. Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
| * nfsd4: memory corruption in numeric_name_to_id()Dan Carpenter2012-03-281-1/+1
| | | | | | | | | | | | | | | | "id" is type is a uid_t (32 bits) but on 64 bit systems strict_strtoul() modifies 64 bits of data. We should use kstrtouint() instead. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
| * nfsd4: allow numeric idmappingJ. Bruce Fields2012-03-261-4/+49
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Mimic the client side by providing a module parameter that turns off idmapping in the auth_sys case, for backwards compatibility with NFSv2 and NFSv3. Unlike in the client case, we don't have any way to negotiate, since the client can return an error to us if it doesn't like the id that we return to it in (for example) a getattr call. However, it has always been possible for servers to return numeric id's, and as far as we're aware clients have always been able to handle them. Also, in the auth_sys case clients already need to have numeric id's the same between client and server. Therefore we believe it's safe to default this to on; but the module parameter is available to return to previous behavior if this proves to be a problem in some unexpected setup. Signed-off-by: J. Bruce Fields <bfields@redhat.com>
| * nfsd: don't allow legacy client tracker init for anything but init_netJeff Layton2012-03-261-0/+7
| | | | | | | | | | | | | | | | This code isn't set up for containers, so don't allow it to be used for anything but init_net. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
| * nfsd: add notifier to handle mount/unmount of rpc_pipefs sbJeff Layton2012-03-263-1/+53
| | | | | | | | | | | | | | | | | | In the event that rpc_pipefs isn't mounted when nfsd starts, we must register a notifier to handle creating the dentry once it is mounted, and to remove the dentry on unmount. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
| * nfsd: add the infrastructure to handle the cld upcallJeff Layton2012-03-261-1/+443
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ...and add a mechanism for switching between the "legacy" tracker and the new one. The decision is made by looking to see whether the v4recoverydir exists. If it does, then the legacy client tracker is used. If it's not, then the kernel will create a "cld" pipe in rpc_pipefs. That pipe is used to talk to a daemon for handling the upcall. Most of the data structures for the new client tracker are handled on a per-namespace basis, so this upcall should be essentially ready for containerization. For now however, nfsd just starts it by calling the initialization and exit functions for init_net. I'm making the assumption that at some point in the future we'll be able to determine the net namespace from the nfs4_client. Until then, this patch hardcodes init_net in those places. I've sprinkled some "FIXME" comments around that code to attempt to make it clear where we'll need to fix that up later. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
| * nfsd: add a per-net-namespace struct for nfsdJeff Layton2012-03-262-1/+48
| | | | | | | | | | | | | | | | | | | | | | | | Eventually, we'll need this when nfsd gets containerized fully. For now, create a struct on a per-net-namespace basis that will just hold a pointer to the cld_net structure. That struct will hold all of the per-net data that we need for the cld tracker. Eventually we can add other pernet objects to struct nfsd_net. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
| * nfsd: add nfsd4_client_tracking_ops struct and a way to set itJeff Layton2012-03-263-58/+156
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Abstract out the mechanism that we use to track clients into a set of client name tracking functions. This gives us a mechanism to plug in a new set of client tracking functions without disturbing the callers. It also gives us a way to decide on what tracking scheme to use at runtime. For now, this just looks like pointless abstraction, but later we'll add a new alternate scheme for tracking clients on stable storage. Note too that this patch anticipates the eventual containerization of this code by passing in struct net pointers in places. No attempt is made to containerize the legacy client tracker however. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
| * nfsd: convert nfs4_client->cl_cb_flags to a generic flags fieldJeff Layton2012-03-265-33/+47
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We'll need a way to flag the nfs4_client as already being recorded on stable storage so that we don't continually upcall. Currently, that's recorded in the cl_firststate field of the client struct. Using an entire u32 to store a flag is rather wasteful though. The cl_cb_flags field is only using 2 bits right now, so repurpose that to a generic flags field. Rename NFSD4_CLIENT_KILL to NFSD4_CLIENT_CB_KILL to make it evident that it's part of the callback flags. Add a mask that we can use for existing checks that look to see whether any flags are set, so that the new flags don't interfere. Convert all references to cl_firstate to the NFSD4_CLIENT_STABLE flag, and add a new NFSD4_CLIENT_RECLAIM_COMPLETE flag. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
| * Merge nfs containerization work from Trond's treeJ. Bruce Fields2012-03-265-12/+13
| |\ | | | | | | | | | | | | The nfs containerization work is a prerequisite for Jeff Layton's reboot recovery rework.
| * | NFSD: Fix nfs4_verifier memory alignmentChuck Lever2012-03-204-28/+31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Clean up due to code review. The nfs4_verifier's data field is not guaranteed to be u32-aligned. Casting an array of chars to a u32 * is considered generally hazardous. We can fix most of this by using a __be32 array to generate the verifier's contents and then byte-copying it into the verifier field. However, there is one spot where there is a backwards compatibility constraint: the do_nfsd_create() call expects a verifier which is 32-bit aligned. Fix this spot by forcing the alignment of the create verifier in the nfsd4_open args structure. Also, sizeof(nfs4_verifer) is the size of the in-core verifier data structure, but NFS4_VERIFIER_SIZE is the number of octets in an XDR'd verifier. The two are not interchangeable, even if they happen to have the same value. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
| * | NFSD: Fix warnings when NFSD_DEBUG is not definedTrond Myklebust2012-03-202-0/+12
| | | | | | | | | | | | | | | Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
| * | nfsd: merge cookie collision fixes from ext4 treeJ. Bruce Fields2012-03-192-10/+25
| |\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | These changes fix readdir loops on ext4 filesystems with dir_index turned on. I'm pulling them from Ted's tree as I'd like to give them some extra nfsd testing, and expect to be applying (potentially conflicting) patches to the same code before the next merge window. From the nfs-ext4-premerge branch of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4 Signed-off-by: J. Bruce Fields <bfields@redhat.com>
| | * | nfsd: vfs_llseek() with 32 or 64 bit offsets (hashes)Bernd Schubert2012-03-182-2/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use 32-bit or 64-bit llseek() hashes for directory offsets depending on the NFS version. NFSv2 gets 32-bit hashes only. NOTE: This patch got rather complex as Christoph asked to set the filp->f_mode flag in the open call or immediatly after dentry_open() in nfsd_open() to avoid races. Personally I still do not see a reason for that and in my opinion FMODE_32BITHASH/FMODE_64BITHASH flags could be set nfsd_readdir(), as it follows directly after nfsd_open() without a chance of races. Signed-off-by: Bernd Schubert <bernd.schubert@itwm.fraunhofer.de> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Acked-by: J. Bruce Fields<bfields@redhat.com>
| | * | nfsd: rename 'int access' to 'int may_flags' in nfsd_open()Bernd Schubert2012-03-181-8/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Just rename this variable, as the next patch will add a flag and 'access' as variable name would not be correct any more. Signed-off-by: Bernd Schubert <bernd.schubert@itwm.fraunhofer.de> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Acked-by: J. Bruce Fields<bfields@redhat.com>
| * | | nfsd4: make sure set CB_PATH_DOWN sequence flag setJ. Bruce Fields2012-03-091-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Make sure this is set whenever there is no callback channel. If a client does not set up a callback channel at all, then it will get this flag set from the very start. That's OK, it can just ignore the flag if it doesn't care. If a client does care, I think it's better to inform it of the problem as early as possible. Reported-by: Rick Macklem <rmacklem@uoguelph.ca> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
| * | | nfsd4: reduce do_open_lookup() stack usageJ. Bruce Fields2012-03-061-10/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | I get 320 bytes for struct svc_fh on x86_64, really a little large to be putting on the stack; kmalloc() instead. Signed-off-by: J. Bruce Fields <bfields@redhat.com>
| * | | nfsd4: delay setting current filehandle till successJ. Bruce Fields2012-03-061-5/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Compound processing stops on error, so the current filehandle won't be used on error. Thus the order here doesn't really matter. It'll be more convenient to do it later, though. Signed-off-by: J. Bruce Fields <bfields@redhat.com>
| * | | nfsd41: free_session/free_client must be called under the client_lockBenny Halevy2012-03-062-16/+32
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The session client is manipulated under the client_lock hence both free_session and nfsd4_del_conns must be called under this lock. This patch adds a BUG_ON that checks this condition in the respective functions and implements the missing locks. nfsd4_{get,put}_session helpers were moved to the C file that uses them so to prevent use from external files and an unlocked version of nfsd4_put_session is provided for external use from nfs4xdr.c Signed-off-by: Benny Halevy <bhalevy@tonian.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
| * | | nfsd41: refactor nfsd4_deleg_xgrade_none_ext logic out of nfsd4_process_open2Benny Halevy2012-03-061-15/+20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Handle the case where the nfsv4.1 client asked to uprade or downgrade its delegations and server returns no delegation. In this case, op_delegate_type is set to NFS4_OPEN_DELEGATE_NONE_EXT and op_why_no_deleg is set respectively to WND4_NOT_SUPP_{UP,DOWN}GRADE Signed-off-by: Benny Halevy <bhalevy@tonian.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
| * | | nfsd41: refactor nfs4_open_deleg_none_ext logic out of nfs4_open_delegationBenny Halevy2012-03-061-19/+24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When a 4.1 client asks for a delegation and the server returns none op_delegate_type is set to NFS4_OPEN_DELEGATE_NONE_EXT and op_why_no_deleg is set to either WND4_CONTENTION or WND4_RESOURCE. Or, if the client sent a NFS4_SHARE_WANT_CANCEL (which it is not supposed to ever do until our server supports delegations signaling), op_why_no_deleg is set to WND4_CANCELLED. Note that for WND4_CONTENTION and WND4_RESOURCE, the xdr layer is hard coded at this time to encode boolean FALSE for ond_server_will_push_deleg / ond_server_will_signal_avail. Signed-off-by: Benny Halevy <bhalevy@tonian.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
| * | | nfsd4: fix recovery-entry leak nfsd startup failureJ. Bruce Fields2012-03-061-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | Another leak on error Signed-off-by: J. Bruce Fields <bfields@redhat.com>
| * | | nfsd4: fix recovery-dir leak on nfsd startup failureJeff Layton2012-03-061-13/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The current code never calls nfsd4_shutdown_recdir if nfs4_state_start returns an error. Also, it's better to go ahead and consolidate these functions since one is just a trivial wrapper around the other. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
| * | | nfsd4: purge stable client records with insufficient stateJ. Bruce Fields2012-03-061-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | To escape having your stable storage record purged at the end of the grace period, it's not sufficient to simply have performed a setclientid_confirm; you also need to meet the same requirements as someone creating a new record: either you should have done an open or open reclaim (in the 4.0 case) or a reclaim_complete (in the 4.1 case). Signed-off-by: J. Bruce Fields <bfields@redhat.com>
| * | | nfsd4: don't set cl_firststate on first reclaim in 4.1 caseJ. Bruce Fields2012-03-061-3/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We set cl_firststate when we first decide that a client will be permitted to reclaim state on next boot. This happens: - for new 4.0 clients, when they confirm their first open - for returning 4.0 clients, when they reclaim their first open - for 4.1+ clients, when they perform reclaim_complete We also use cl_firststate to decide whether a reclaim_complete has already been performed, in the 4.1+ case. We were setting it on 4.1 open reclaims, which caused spurious COMPLETE_ALREADY errors on RECLAIM_COMPLETE from an nfs4.1 client with anything to reclaim. Reported-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
| * | | nfsd41: implement NFS4_SHARE_WANT_NO_DELEG, NFS4_OPEN_DELEGATE_NONE_EXT, ↵Benny Halevy2012-02-173-7/+68
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
| * | | NFSD: Clean up the test_stateid functionBryan Schumaker2012-02-173-49/+35
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When I initially wrote it, I didn't understand how lists worked so I wrote something that didn't use them. I think making a list of stateids to test is a more straightforward implementation, especially compared to especially compared to decoding stateids while simultaneously encoding a reply to the client. Signed-off-by: Bryan Schumaker <bjschuma@netapp.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
| * | | nfsd41: split out share_access want and signal flags while decodingBenny Halevy2012-02-174-12/+22
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Benny Halevy <bhalevy@tonian.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
| * | | nfsd41: share_access_to_flags should consider only nfs4.x share_access flagsBenny Halevy2012-02-171-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently, it will not correctly ignore any nfsv4.1 signal flags if the client sends them. Signed-off-by: Benny Halevy <bhalevy@tonian.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
| * | | nfsd41: use current stateid by valueTigran Mkrtchyan2012-02-154-9/+33
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Tigran Mkrtchyan <kofemann@gmail.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
| * | | nfsd41: consume current stateid on DELEGRETURN and OPENDOWNGRADETigran Mkrtchyan2012-02-153-0/+24
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Tigran Mkrtchyan <kofemann@gmail.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
| * | | nfsd41: handle current stateid in SETATTR and FREE_STATEIDTigran Mkrtchyan2012-02-153-0/+16
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Tigran Mkrtchyan <kofemann@gmail.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
| * | | nfsd41: mark LOOKUP, LOOKUPP and CREATE to invalidate current stateidTigran Mkrtchyan2012-02-151-3/+3
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Tigran Mkrtchyan <kofemann@gmail.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
| * | | nfsd41: save and restore current stateid with current fhTigran Mkrtchyan2012-02-152-0/+3
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Tigran Mkrtchyan <kofemann@gmail.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
| * | | nfsd41: mark PUTFH, PUTPUBFH and PUTROOTFH to clear current stateidTigran Mkrtchyan2012-02-151-3/+6
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Tigran Mkrtchyan <kofemann@gmail.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
| * | | nfsd41: consume current stateid on read and writeTigran Mkrtchyan2012-02-153-0/+16
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Tigran Mkrtchyan <kofemann@gmail.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
| * | | nfsd41: handle current stateid on lock and lockuTigran Mkrtchyan2012-02-153-3/+32
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Tigran Mkrtchyan <kofemann@gmail.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
| * | | nfsd41: handle current stateid in open and closeTigran Mkrtchyan2012-02-154-4/+70
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Tigran Mkrtchyan <kofemann@gmail.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
| * | | nfsd4: initialize current stateid at compile timeTigran Mkrtchyan2012-02-151-0/+4
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Tigran Mkrtchyan <kofemann@gmail.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
| * | | nfsd4: check for uninitialized slotJ. Bruce Fields2012-02-142-1/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | This fixes an oops when a buggy client tries to use an initial seqid of 0 on a new slot, which we may misinterpret as a replay. Signed-off-by: J. Bruce Fields <bfields@redhat.com>
| * | | nfsd4: rearrange struct nfsd4_slotJ. Bruce Fields2012-02-144-14/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Combine two booleans into a single flag field, move the smaller fields to the end. (In practice this doesn't make the struct any smaller. But we'll be adding another flag here soon.) Remove some debugging code that doesn't look useful, while we're in the neighborhood. Signed-off-by: J. Bruce Fields <bfields@redhat.com>
| * | | nfsd4: fix sessions slotid wraparound logicJ. Bruce Fields2012-02-131-6/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | From RFC 5661 2.10.6.1: "If the previous sequence ID was 0xFFFFFFFF, then the next request for the slot MUST have the sequence ID set to zero." While we're there, delete some redundant comments. Signed-off-by: J. Bruce Fields <bfields@redhat.com>
| * | | nfsd: fix default iosize calculation on 32bitJ. Bruce Fields2012-02-031-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | The rpc buffers will be allocated out of low memory, so we should really only be taking that into account. Signed-off-by: J. Bruce Fields <bfields@redhat.com>
| * | | nfsd: cleanup setting of default max_block_sizeJ. Bruce Fields2012-02-031-20/+24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Move calculation of the default into a helper function. Get rid of an unused variable "err" while we're there. Thanks to Mi Jinlong for catching an arithmetic error in a previous version. Cc: Mi Jinlong <mijinlong@cn.fujitsu.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
| * | | nfsd: remove some unneeded checksDan Carpenter2012-02-031-1/+1
| |/ / | | | | | | | | | | | | | | | | | | | | | We check for zero length strings in the caller now, so these aren't needed. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
* | | Merge tag 'nfs-for-3.4-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfsLinus Torvalds2012-03-235-12/+13
|\ \ \ | | |/ | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull NFS client updates for Linux 3.4 from Trond Myklebust: "New features include: - Add NFS client support for containers. This should enable most of the necessary functionality, including lockd support, and support for rpc.statd, NFSv4 idmapper and RPCSEC_GSS upcalls into the correct network namespace from which the mount system call was issued. - NFSv4 idmapper scalability improvements Base the idmapper cache on the keyring interface to allow concurrent access to idmapper entries. Start the process of migrating users from the single-threaded daemon-based approach to the multi-threaded request-key based approach. - NFSv4.1 implementation id. Allows the NFSv4.1 client and server to mutually identify each other for logging and debugging purposes. - Support the 'vers=4.1' mount option for mounting NFSv4.1 instead of having to use the more counterintuitive 'vers=4,minorversion=1'. - SUNRPC tracepoints. Start the process of adding tracepoints in order to improve debugging of the RPC layer. - pNFS object layout support for autologin. Important bugfixes include: - Fix a bug in rpc_wake_up/rpc_wake_up_status that caused them to fail to wake up all tasks when applied to priority waitqueues. - Ensure that we handle read delegations correctly, when we try to truncate a file. - A number of fixes for NFSv4 state manager loops (mostly to do with delegation recovery)." * tag 'nfs-for-3.4-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs: (224 commits) NFS: fix sb->s_id in nfs debug prints xprtrdma: Remove assumption that each segment is <= PAGE_SIZE xprtrdma: The transport should not bug-check when a dup reply is received pnfs-obj: autologin: Add support for protocol autologin NFS: Remove nfs4_setup_sequence from generic rename code NFS: Remove nfs4_setup_sequence from generic unlink code NFS: Remove nfs4_setup_sequence from generic read code NFS: Remove nfs4_setup_sequence from generic write code NFS: Fix more NFS debug related build warnings SUNRPC/LOCKD: Fix build warnings when CONFIG_SUNRPC_DEBUG is undefined nfs: non void functions must return a value SUNRPC: Kill compiler warning when RPC_DEBUG is unset SUNRPC/NFS: Add Kbuild dependencies for NFS_DEBUG/RPC_DEBUG NFS: Use cond_resched_lock() to reduce latencies in the commit scans NFSv4: It is not safe to dereference lsp->ls_state in release_lockowner NFS: ncommit count is being double decremented SUNRPC: We must not use list_for_each_entry_safe() in rpc_wake_up() Try using machine credentials for RENEW calls NFSv4.1: Fix a few issues in filelayout_commit_pagelist NFSv4.1: Clean ups and bugfixes for the pNFS read/writeback/commit code ...
| * | SUNRPC: constify the rpc_programTrond Myklebust2012-01-311-3/+3
| | | | | | | | | | | | Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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