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* SUNRPC: Initialise struct svc_serv backchannel fields during __svc_create()Trond Myklebust2016-09-191-0/+17
| | | | | | | Clean up. Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
* NFS: Don't drop CB requests with invalid principalsChuck Lever2016-07-111-0/+5
| | | | | | | | | | | | | | Before commit 778be232a207 ("NFS do not find client in NFSv4 pg_authenticate"), the Linux callback server replied with RPC_AUTH_ERROR / RPC_AUTH_BADCRED, instead of dropping the CB request. Let's restore that behavior so the server has a chance to do something useful about it, and provide a warning that helps admins correct the problem. Fixes: 778be232a207 ("NFS do not find client in NFSv4 ...") Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Tested-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
* svc: Avoid garbage replies when pc_func() returns rpc_drop_replyChuck Lever2016-07-111-1/+2
| | | | | | | | | | | | If an RPC program does not set vs_dispatch and pc_func() returns rpc_drop_reply, the server sends a reply anyway containing a single word containing the value RPC_DROP_REPLY (in network byte-order, of course). This is a nonsense RPC message. Fixes: 9e701c610923 ("svcrpc: simpler request dropping") Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Tested-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
* SUNRPC: Fix callback channelTrond Myklebust2015-12-071-0/+12
| | | | | | | | | | | | | The NFSv4.1 callback channel is currently broken because the receive message will keep shrinking because the backchannel receive buffer size never gets reset. The easiest solution to this problem is instead of changing the receive buffer, to rather adjust the copied request. Fixes: 38b7631fbe42 ("nfs4: limit callback decoding to received bytes") Cc: Benjamin Coddington <bcodding@redhat.com> Cc: stable@vger.kernel.org Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
* nfs4: limit callback decoding to received bytesBenjamin Coddington2015-11-241-0/+1
| | | | | | | | | | | | | | | | | | | | | A truncated cb_compound request will cause the client to decode null or data from a previous callback for nfs4.1 backchannel case, or uninitialized data for the nfs4.0 case. This is because the path through svc_process_common() advances the request's iov_base and decrements iov_len without adjusting the overall xdr_buf's len field. That causes xdr_init_decode() to set up the xdr_stream with an incorrect length in nfs4_callback_compound(). Fixing this for the nfs4.1 backchannel case first requires setting the correct iov_len and page_len based on the length of received data in the same manner as the nfs4.0 case. Then the request's xdr_buf length can be adjusted for both cases based upon the remaining iov_len and page_len. Signed-off-by: Benjamin Coddington <bcodding@redhat.com> Cc: stable@vger.kernel.org Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
* SUNRPC: Remove the TCP-only restriction in bc_svc_process()Chuck Lever2015-11-021-5/+0
| | | | | | | | | | Allow the use of other transport classes when handling a backward direction RPC call. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Reviewed-by: Sagi Grimberg <sagig@mellanox.com> Tested-By: Devesh Sharma <devesh.sharma@avagotech.com> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
* nfsd/sunrpc: factor svc_rqst allocation and freeing from sv_nrthreads ↵Jeff Layton2015-08-101-18/+36
| | | | | | | | | | | | | | refcounting In later patches, we'll want to be able to allocate and free svc_rqst structures without monkeying with the serv->sv_nrthreads refcount. Factor those pieces out of their respective functions. Signed-off-by: Shirley Ma <shirley.ma@oracle.com> Acked-by: Jeff Layton <jlayton@primarydata.com> Tested-by: Shirley Ma <shirley.ma@oracle.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
* nfsd/sunrpc: move pool_mode definitions into svc.hJeff Layton2015-08-101-24/+7
| | | | | | | | | | | | | | | In later patches, we're going to need to allow code external to svc.c to figure out what pool_mode is in use. Move these definitions into svc.h to prepare for that. Also, make the svc_pool_map object available and exported so that other modules can peek in there to get insight into what pool mode is in use. Likewise, export svc_pool_map_get/put function to make it safe to do so. Signed-off-by: Shirley Ma <shirley.ma@oracle.com> Acked-by: Jeff Layton <jlayton@primarydata.com> Tested-by: Shirley Ma <shirley.ma@oracle.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
* nfsd/sunrpc: move sv_module parm into sv_opsJeff Layton2015-08-101-5/+3
| | | | | | | | | | ...not technically an operation, but it's more convenient and cleaner to pass the module pointer in this struct. Signed-off-by: Shirley Ma <shirley.ma@oracle.com> Acked-by: Jeff Layton <jlayton@primarydata.com> Tested-by: Shirley Ma <shirley.ma@oracle.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
* nfsd/sunrpc: move sv_function into sv_opsJeff Layton2015-08-101-5/+3
| | | | | | | | | | Since we now have a container for holding svc_serv operations, move the sv_function into it as well. Signed-off-by: Shirley Ma <shirley.ma@oracle.com> Acked-by: Jeff Layton <jlayton@primarydata.com> Tested-by: Shirley Ma <shirley.ma@oracle.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
* nfsd/sunrpc: add a new svc_serv_ops struct and move sv_shutdown into itJeff Layton2015-08-101-9/+9
| | | | | | | | | | | | | In later patches we'll need to abstract out more operations on a per-service level, besides sv_shutdown and sv_function. Declare a new svc_serv_ops struct to hold these operations, and move sv_shutdown into this struct. Signed-off-by: Shirley Ma <shirley.ma@oracle.com> Acked-by: Jeff Layton <jlayton@primarydata.com> Tested-by: Shirley Ma <shirley.ma@oracle.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
* Merge tag 'nfs-for-4.2-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfsLinus Torvalds2015-07-021-8/+28
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull NFS client updates from Trond Myklebust: "Highlights include: Stable patches: - Fix a crash in the NFSv4 file locking code. - Fix an fsync() regression, where we were failing to retry I/O in some circumstances. - Fix an infinite loop in NFSv4.0 OPEN stateid recovery - Fix a memory leak when an attempted pnfs fails. - Fix a memory leak in the backchannel code - Large hostnames were not supported correctly in NFSv4.1 - Fix a pNFS/flexfiles bug that was impeding error reporting on I/O. - Fix a couple of credential issues in pNFS/flexfiles Bugfixes + cleanups: - Open flag sanity checks in the NFSv4 atomic open codepath - More NFSv4 delegation related bugfixes - Various NFSv4.1 backchannel bugfixes and cleanups - Fix the NFS swap socket code - Various cleanups of the NFSv4 SETCLIENTID and EXCHANGE_ID code - Fix a UDP transport deadlock issue Features: - More RDMA client transport improvements - NFSv4.2 LAYOUTSTATS functionality for pnfs flexfiles" * tag 'nfs-for-4.2-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs: (87 commits) nfs: Remove invalid tk_pid from debug message nfs: Remove invalid NFS_ATTR_FATTR_V4_REFERRAL checking in nfs4_get_rootfh nfs: Drop bad comment in nfs41_walk_client_list() nfs: Remove unneeded micro checking of CONFIG_PROC_FS nfs: Don't setting FILE_CREATED flags always nfs: Use remove_proc_subtree() instead remove_proc_entry() nfs: Remove unused argument in nfs_server_set_fsinfo() nfs: Fix a memory leak when meeting an unsupported state protect nfs: take extra reference to fl->fl_file when running a LOCKU operation NFSv4: When returning a delegation, don't reclaim an incompatible open mode. NFSv4.2: LAYOUTSTATS is optional to implement NFSv4.2: Fix up a decoding error in layoutstats pNFS/flexfiles: Fix the reset of struct pgio_header when resending pNFS/flexfiles: Turn off layoutcommit for servers that don't need it pnfs/flexfiles: protect ktime manipulation with mirror lock nfs: provide pnfs_report_layoutstat when NFS42 is disabled nfs: verify open flags before allowing open nfs: always update creds in mirror, even when we have an already connected ds nfs: fix potential credential leak in ff_layout_update_mirror_cred pnfs/flexfiles: report layoutstat regularly ...
| * SUNRPC: Fix a backchannel raceTrond Myklebust2015-06-051-1/+5
| | | | | | | | | | | | | | | | | | | | We need to allow the server to send a new request immediately after we've replied to the previous one. Right now, there is a window between the send and the release of the old request in rpc_put_task(), where the server could send us a new backchannel RPC call, and we have no request to service it. Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
| * SUNRPC: Remove unused argument 'tk_ops' in rpc_run_bc_taskTrond Myklebust2015-06-051-2/+1
| | | | | | | | Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
| * SUNRPC: Clean up bc_send()Chuck Lever2015-06-021-8/+25
| | | | | | | | | | | | | | | | | | Clean up: Merge bc_send() into bc_svc_process(). Note: even thought this touches svc.c, it is a client-side change. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
* | SUNRPC: Move EXPORT_SYMBOL for svc_processChuck Lever2015-06-031-1/+1
|/ | | | | | | Clean up. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
* sunrpc/lockd: fix references to the BKLJeff Layton2015-01-231-2/+2
| | | | | | | | The BKL is completely out of the picture in the lockd and sunrpc code these days. Update the antiquated comments that refer to it. Signed-off-by: Jeff Layton <jlayton@primarydata.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
* sunrpc: convert to lockless lookup of queued server threadsJeff Layton2014-12-091-3/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Testing has shown that the pool->sp_lock can be a bottleneck on a busy server. Every time data is received on a socket, the server must take that lock in order to dequeue a thread from the sp_threads list. Address this problem by eliminating the sp_threads list (which contains threads that are currently idle) and replacing it with a RQ_BUSY flag in svc_rqst. This allows us to walk the sp_all_threads list under the rcu_read_lock and find a suitable thread for the xprt by doing a test_and_set_bit. Note that we do still have a potential atomicity problem however with this approach. We don't want svc_xprt_do_enqueue to set the rqst->rq_xprt pointer unless a test_and_set_bit of RQ_BUSY returned zero (which indicates that the thread was idle). But, by the time we check that, the bit could be flipped by a waking thread. To address this, we acquire a new per-rqst spinlock (rq_lock) and take that before doing the test_and_set_bit. If that returns false, then we can set rq_xprt and drop the spinlock. Then, when the thread wakes up, it must set the bit under the same spinlock and can trust that if it was already set then the rq_xprt is also properly set. With this scheme, the case where we have an idle thread no longer needs to take the highly contended pool->sp_lock at all, and that removes the bottleneck. That still leaves one issue: What of the case where we walk the whole sp_all_threads list and don't find an idle thread? Because the search is lockess, it's possible for the queueing to race with a thread that is going to sleep. To address that, we queue the xprt and then search again. If we find an idle thread at that point, we can't attach the xprt to it directly since that might race with a different thread waking up and finding it. All we can do is wake the idle thread back up and let it attempt to find the now-queued xprt. Signed-off-by: Jeff Layton <jlayton@primarydata.com> Tested-by: Chris Worley <chris.worley@primarydata.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
* sunrpc: add a rcu_head to svc_rqst and use kfree_rcu to free itJeff Layton2014-12-091-4/+6
| | | | | | | | | ...also make the manipulation of sp_all_threads list use RCU-friendly functions. Signed-off-by: Jeff Layton <jlayton@primarydata.com> Tested-by: Chris Worley <chris.worley@primarydata.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
* sunrpc: require svc_create callers to pass in meaningful shutdown routineJeff Layton2014-12-091-3/+0
| | | | | | | | | | | | Currently all svc_create callers pass in NULL for the shutdown parm, which then gets fixed up to be svc_rpcb_cleanup if the service uses rpcbind. Simplify this by instead having the the only caller that requires it (lockd) pass in svc_rpcb_cleanup and get rid of the special casing. Signed-off-by: Jeff Layton <jlayton@primarydata.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
* sunrpc: move rq_splice_ok flag into rq_flagsJeff Layton2014-12-091-1/+1
| | | | | Signed-off-by: Jeff Layton <jlayton@primarydata.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
* sunrpc: move rq_dropme flag into rq_flagsJeff Layton2014-12-091-2/+2
| | | | | Signed-off-by: Jeff Layton <jlayton@primarydata.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
* sunrpc: move rq_usedeferral flag to rq_flagsJeff Layton2014-12-091-1/+1
| | | | | Signed-off-by: Jeff Layton <jlayton@primarydata.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
* Merge tag 'nfs-for-3.19-1' into nfsd for-3.19 branchJ. Bruce Fields2014-12-091-10/+13
|\ | | | | | | | | | | | | Mainly what I need is 860a0d9e511f "sunrpc: add some tracepoints in svc_rqst handling functions", which subsequent server rpc patches from jlayton depend on. I'm merging this later tag on the assumption that's more likely to be a tested and stable point.
| * sunrpc: eliminate RPC_DEBUGJeff Layton2014-11-241-1/+1
| | | | | | | | | | | | | | It's always set to whatever CONFIG_SUNRPC_DEBUG is, so just use that. Signed-off-by: Jeff Layton <jlayton@primarydata.com> Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
| * sunrpc: add some tracepoints in svc_rqst handling functionsJeff Layton2014-11-241-9/+12
| | | | | | | | | | | | | | ...just around svc_send, svc_recv and svc_process for now. Signed-off-by: Jeff Layton <jlayton@primarydata.com> Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
* | sunrpc: release svc_pool_map reference when serv allocation failsJeff Layton2014-12-011-5/+7
| | | | | | | | | | | | | | Currently, it leaks when the allocation fails. Signed-off-by: Jeff Layton <jlayton@primarydata.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
* | SUNRPC: off by one in BUG_ON()Dan Carpenter2014-10-291-1/+1
|/ | | | | | | | | The m->pool_to[] array has "maxpools" number of elements. It's allocated in svc_pool_map_alloc_arrays() which we called earlier in the function. This test should be >= instead of >. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
* SUNRPC: get rid of the request wait queueTrond Myklebust2014-08-171-2/+0
| | | | | | | | | We're always _only_ waking up tasks from within the sp_threads list, so we know that they are enqueued and alive. The rq_wait waitqueue is just a distraction with extra atomic semantics. Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
* SUNRPC/NFSD: Change to type of bool for rq_usedeferral and rq_splice_okKinglong Mee2014-06-231-2/+2
| | | | | | | rq_usedeferral and rq_splice_ok are used as 0 and 1, just defined to bool. Signed-off-by: Kinglong Mee <kinglongmee@gmail.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
* SUNRPC/NFSD: Support a new option for ignoring the result of svc_registerKinglong Mee2014-01-041-8/+17
| | | | | | | | | | | | | | | | | | | | | | | NFSv4 clients can contact port 2049 directly instead of needing the portmapper. Therefore a failure to register to the portmapper when starting an NFSv4-only server isn't really a problem. But Gareth Williams reports that an attempt to start an NFSv4-only server without starting portmap fails: #rpc.nfsd -N 2 -N 3 rpc.nfsd: writing fd to kernel failed: errno 111 (Connection refused) rpc.nfsd: unable to set any sockets for nfsd Add a flag to svc_version to tell the rpc layer it can safely ignore an rpcbind failure in the NFSv4-only case. Reported-by: Gareth Williams <gareth@garethwilliams.me.uk> Reviewed-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Kinglong Mee <kinglongmee@gmail.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
* svcrpc: remove an unnecessary assignmentWeng Meiling2013-11-131-2/+0
| | | | | Signed-off-by: Weng Meiling <wengmeiling.weng@huawei.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
* drivers: avoid parsing names as kthread_run() format stringsKees Cook2013-07-041-1/+1
| | | | | | | | | | Calling kthread_run with a single name parameter causes it to be handled as a format string. Many callers are passing potentially dynamic string content, so use "%s" in those cases to avoid any potential accidents. Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* svcrpc: fix rpc server shutdown racesJ. Bruce Fields2013-02-171-9/+0
| | | | | | | | | | | | | | | | | | | | Rewrite server shutdown to remove the assumption that there are no longer any threads running (no longer true, for example, when shutting down the service in one network namespace while it's still running in others). Do that by doing what we'd do in normal circumstances: just CLOSE each socket, then enqueue it. Since there may not be threads to handle the resulting queued xprts, also run a simplified version of the svc_recv() loop run by a server to clean up any closed xprts afterwards. Cc: stable@kernel.org Tested-by: Jason Tibbitts <tibbs@math.uh.edu> Tested-by: Paweł Sikora <pawel.sikora@agmk.net> Acked-by: Stanislav Kinsbursky <skinsbursky@parallels.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
* svcrpc: silence "unused variable" warning in !RPC_DEBUG caseJ. Bruce Fields2013-01-241-0/+4
| | | | Signed-off-by: J. Bruce Fields <bfields@redhat.com>
* Merge branch 'for-3.8' of git://linux-nfs.org/~bfields/linuxLinus Torvalds2012-12-201-5/+3
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull nfsd update from Bruce Fields: "Included this time: - more nfsd containerization work from Stanislav Kinsbursky: we're not quite there yet, but should be by 3.9. - NFSv4.1 progress: implementation of basic backchannel security negotiation and the mandatory BACKCHANNEL_CTL operation. See http://wiki.linux-nfs.org/wiki/index.php/Server_4.0_and_4.1_issues for remaining TODO's - Fixes for some bugs that could be triggered by unusual compounds. Our xdr code wasn't designed with v4 compounds in mind, and it shows. A more thorough rewrite is still a todo. - If you've ever seen "RPC: multiple fragments per record not supported" logged while using some sort of odd userland NFS client, that should now be fixed. - Further work from Jeff Layton on our mechanism for storing information about NFSv4 clients across reboots. - Further work from Bryan Schumaker on his fault-injection mechanism (which allows us to discard selective NFSv4 state, to excercise rarely-taken recovery code paths in the client.) - The usual mix of miscellaneous bugs and cleanup. Thanks to everyone who tested or contributed this cycle." * 'for-3.8' of git://linux-nfs.org/~bfields/linux: (111 commits) nfsd4: don't leave freed stateid hashed nfsd4: free_stateid can use the current stateid nfsd4: cleanup: replace rq_resused count by rq_next_page pointer nfsd: warn on odd reply state in nfsd_vfs_read nfsd4: fix oops on unusual readlike compound nfsd4: disable zero-copy on non-final read ops svcrpc: fix some printks NFSD: Correct the size calculation in fault_inject_write NFSD: Pass correct buffer size to rpc_ntop nfsd: pass proper net to nfsd_destroy() from NFSd kthreads nfsd: simplify service shutdown nfsd: replace boolean nfsd_up flag by users counter nfsd: simplify NFSv4 state init and shutdown nfsd: introduce helpers for generic resources init and shutdown nfsd: make NFSd service structure allocated per net nfsd: make NFSd service boot time per-net nfsd: per-net NFSd up flag introduced nfsd: move per-net startup code to separated function nfsd: pass net to __write_ports() and down nfsd: pass net to nfsd_set_nrthreads() ...
| * nfsd4: cleanup: replace rq_resused count by rq_next_page pointerJ. Bruce Fields2012-12-181-1/+1
| | | | | | | | | | | | | | It may be a matter of personal taste, but I find this makes the code clearer. Signed-off-by: J. Bruce Fields <bfields@redhat.com>
| * SUNRPC: remove redundant "linux/nsproxy.h" includesStanislav Kinsbursky2012-12-101-1/+0
| | | | | | | | | | | | | | This is a cleanup patch. Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
| * svcrpc: demote some printks to a dprintkJ. Bruce Fields2012-11-081-3/+2
| | | | | | | | | | | | | | In general I'd rather random bad behavior on the network won't trigger a printk. Signed-off-by: J. Bruce Fields <bfields@redhat.com>
* | SUNRPC: remove BUG_ON in svc_registerWeston Andros Adamson2012-11-041-1/+3
| | | | | | | | | | | | | | Instead of calling BUG_ON(), do a WARN_ON_ONCE() and return -EINVAL. Signed-off-by: Weston Andros Adamson <dros@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* | SUNRPC: remove BUG_ONs checking RPCSVC_MAXPAGESWeston Andros Adamson2012-11-041-1/+3
| | | | | | | | | | | | | | | | Replace two bounds checking BUG_ON() calls with WARN_ON_ONCE() and resetting the requested size to RPCSVC_MAXPAGES. Signed-off-by: Weston Andros Adamson <dros@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* | SUNRPC: remove BUG_ON from svc_pool_map_set_cpumaskWeston Andros Adamson2012-11-041-1/+3
|/ | | | | | | Replace BUG_ON() with a WARN() and early return. Signed-off-by: Weston Andros Adamson <dros@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* Merge tag 'nfs-for-3.5-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfsLinus Torvalds2012-06-161-1/+2
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull NFS client bugfixes from Trond Myklebust: "Highlights include: - Fix a couple of mount regressions due to the recent cleanups. - Fix an Oops in the open recovery code - Fix an rpc_pipefs upcall hang that results from some of the net namespace work from 3.4.x (stable kernel candidate). - Fix a couple of write and o_direct regressions that were found at last weeks Bakeathon testing event in Ann Arbor." * tag 'nfs-for-3.5-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs: NFS: add an endian notation for sparse NFSv4.1: integer overflow in decode_cb_sequence_args() rpc_pipefs: allow rpc_purge_list to take a NULL waitq pointer NFSv4 do not send an empty SETATTR compound NFSv2: EOF incorrectly set on short read NFS: Use the NFS_DEFAULT_VERSION for v2 and v3 mounts NFS: fix directio refcount bug on commit NFSv4: Fix unnecessary delegation returns in nfs4_do_open NFSv4.1: Convert another trivial printk into a dprintk NFS4: Fix open bug when pnfs module blacklisted NFS: Remove incorrect BUG_ON in nfs_found_client NFS: Map minor mismatch error to protocol not support error. NFS: Fix a commit bug NFS4: Set parsed mount data version to 4 NFSv4.1: Ensure we clear session state flags after a session creation NFSv4.1: Convert a trivial printk into a dprintk NFSv4: Fix up decode_attr_mdsthreshold NFSv4: Fix an Oops in the open recovery code NFSv4.1: Fix a request leak on the back channel
| * NFSv4.1: Fix a request leak on the back channelTrond Myklebust2012-05-311-1/+2
| | | | | | | | | | | | | | | | If the call to svc_process_common() fails, then the request needs to be freed before we can exit bc_svc_process. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> Cc: stable@vger.kernel.org
* | Merge branch 'for-3.5' of git://linux-nfs.org/~bfields/linuxLinus Torvalds2012-06-011-13/+10
|\ \ | |/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull the rest of the nfsd commits from Bruce Fields: "... and then I cherry-picked the remainder of the patches from the head of my previous branch" This is the rest of the original nfsd branch, rebased without the delegation stuff that I thought really needed to be redone. I don't like rebasing things like this in general, but in this situation this was the lesser of two evils. * 'for-3.5' of git://linux-nfs.org/~bfields/linux: (50 commits) nfsd4: fix, consolidate client_has_state nfsd4: don't remove rebooted client record until confirmation nfsd4: remove some dprintk's and a comment nfsd4: return "real" sequence id in confirmed case nfsd4: fix exchange_id to return confirm flag nfsd4: clarify that renewing expired client is a bug nfsd4: simpler ordering of setclientid_confirm checks nfsd4: setclientid: remove pointless assignment nfsd4: fix error return in non-matching-creds case nfsd4: fix setclientid_confirm same_cred check nfsd4: merge 3 setclientid cases to 2 nfsd4: pull out common code from setclientid cases nfsd4: merge last two setclientid cases nfsd4: setclientid/confirm comment cleanup nfsd4: setclientid remove unnecessary terms from a logical expression nfsd4: move rq_flavor into svc_cred nfsd4: stricter cred comparison for setclientid/exchange_id nfsd4: move principal name into svc_cred nfsd4: allow removing clients not holding state nfsd4: rearrange exchange_id logic to simplify ...
| * SUNRPC: move per-net operations from svc_destroy()Stanislav Kinsbursky2012-06-011-4/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The idea is to separate service destruction and per-net operations, because these are two different things and the mix looks ugly. Notes: 1) For NFS server this patch looks ugly (sorry for that). But these place will be rewritten soon during NFSd containerization. 2) LockD per-net counter increase int lockd_up() was moved prior to make_socks() to make lockd_down_net() call safe in case of error. Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
| * SUNRPC: new svc_bind() routine introducedStanislav Kinsbursky2012-06-011-9/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This new routine is responsible for service registration in a specified network context. The idea is to separate service creation from per-net operations. Note also: since registering service with svc_bind() can fail, the service will be destroyed and during destruction it will try to unregister itself from rpcbind. In this case unregistration has to be skipped. Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
* | net: Convert net_ratelimit uses to net_<level>_ratelimitedJoe Perches2012-05-151-10/+8
|/ | | | | | | | | | Standardize the net core ratelimited logging functions. Coalesce formats, align arguments. Change a printk then vprintk sequence to use printf extension %pV. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* Lockd: per-net up and down routines introducedStanislav Kinsbursky2012-02-151-1/+2
| | | | | | | | | | | | | | This patch introduces per-net Lockd initialization and destruction routines. The logic is the same as in global Lockd up and down routines. Probably the solution is not the best one. But at least it looks clear. So per-net "up" routine are called only in case of lockd is running already. If per-net resources are not allocated yet, then service is being registered with local portmapper and lockd sockets created. Per-net "down" routine is called on every lockd_down() call in case of global users counter is not zero. Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* SUNRPC: service shutdown function in network namespace context introducedStanislav Kinsbursky2012-02-151-13/+20
| | | | | | | | | | | | This function is enough for releasing resources, allocated for network namespace context, in case of sharing service between them. IOW, each service "user" (LockD, NFSd, etc), which wants to share service between network namespaces, have to release related resources by the function, introduced in this patch, instead of performing service shutdown (of course in case the service is shared already to the moment of release). Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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