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* lockd: constify nlmsvc_binding structureJulia Lawall2016-01-071-1/+1
| | | | | | | | | The nlmsvc_binding structure is never modified, so declare it as const. Done with the help of Coccinelle. Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
* lockd: use to_delayed_workGeliang Tang2016-01-071-2/+1
| | | | | | | Use to_delayed_work() instead of open-coding it. Signed-off-by: Geliang Tang <geliangtang@163.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
* lockd: Register callbacks on the inetaddr_chain and inet6addr_chainScott Mayhew2015-12-231-2/+72
| | | | | | | | Register callbacks on inetaddr_chain and inet6addr_chain to trigger cleanup of lockd transport sockets when an ip address is deleted. Signed-off-by: Scott Mayhew <smayhew@redhat.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
* Merge tag 'nfsd-4.4' of git://linux-nfs.org/~bfields/linuxLinus Torvalds2015-11-116-97/+46
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull nfsd updates from Bruce Fields: "Apologies for coming a little late in the merge window. Fortunately this is another fairly quiet one: Mainly smaller bugfixes and cleanup. We're still finding some bugs from the breakup of the big NFSv4 state lock in 3.17 -- thanks especially to Andrew Elble and Jeff Layton for tracking down some of the remaining races" * tag 'nfsd-4.4' of git://linux-nfs.org/~bfields/linux: svcrpc: document lack of some memory barriers nfsd: fix race with open / open upgrade stateids nfsd: eliminate sending duplicate and repeated delegations nfsd: remove recurring workqueue job to clean DRC SUNRPC: drop stale comment in svc_setup_socket() nfsd: ensure that seqid morphing operations are atomic wrt to copies nfsd: serialize layout stateid morphing operations nfsd: improve client_has_state to check for unused openowners nfsd: fix clid_inuse on mount with security change sunrpc/cache: make cache flushing more reliable. nfsd: move include of state.h from trace.c to trace.h sunrpc: avoid warning in gss_key_timeout lockd: get rid of reference-counted NSM RPC clients SUNRPC: Use MSG_SENDPAGE_NOTLAST when calling sendpage() lockd: create NSM handles per net namespace nfsd: switch unsigned char flags in svc_fh to bools nfsd: move svc_fh->fh_maxsize to just after fh_handle nfsd: drop null test before destroy functions nfsd: serialize state seqid morphing operations
| * lockd: get rid of reference-counted NSM RPC clientsAndrey Ryabinin2015-10-234-78/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently we have reference-counted per-net NSM RPC client which created on the first monitor request and destroyed after the last unmonitor request. It's needed because RPC client need to know 'utsname()->nodename', but utsname() might be NULL when nsm_unmonitor() called. So instead of holding the rpc client we could just save nodename in struct nlm_host and pass it to the rpc_create(). Thus ther is no need in keeping rpc client until last unmonitor request. We could create separate RPC clients for each monitor/unmonitor requests. Signed-off-by: Andrey Ryabinin <aryabinin@virtuozzo.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
| * lockd: create NSM handles per net namespaceAndrey Ryabinin2015-10-126-19/+30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit cb7323fffa85 ("lockd: create and use per-net NSM RPC clients on MON/UNMON requests") introduced per-net NSM RPC clients. Unfortunately this doesn't make any sense without per-net nsm_handle. E.g. the following scenario could happen Two hosts (X and Y) in different namespaces (A and B) share the same nsm struct. 1. nsm_monitor(host_X) called => NSM rpc client created, nsm->sm_monitored bit set. 2. nsm_mointor(host-Y) called => nsm->sm_monitored already set, we just exit. Thus in namespace B ln->nsm_clnt == NULL. 3. host X destroyed => nsm->sm_count decremented to 1 4. host Y destroyed => nsm_unmonitor() => nsm_mon_unmon() => NULL-ptr dereference of *ln->nsm_clnt So this could be fixed by making per-net nsm_handles list, instead of global. Thus different net namespaces will not be able share the same nsm_handle. Signed-off-by: Andrey Ryabinin <aryabinin@virtuozzo.com> Cc: <stable@vger.kernel.org> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
* | Move locks API users to locks_lock_inode_wait()Benjamin Coddington2015-10-221-12/+1
|/ | | | | | | | | Instead of having users check for FL_POSIX or FL_FLOCK to call the correct locks API function, use the check within locks_lock_inode_wait(). This allows for some later cleanup. Signed-off-by: Benjamin Coddington <bcodding@redhat.com> Signed-off-by: Jeff Layton <jeff.layton@primarydata.com>
* lockd: NLM grace period shouldn't block NFSv4 opensJ. Bruce Fields2015-08-131-0/+1
| | | | | | | | | NLM locks don't conflict with NFSv4 share reservations, so we're not going to learn anything new by watiting for them. They do conflict with NFSv4 locks and with delegations. Signed-off-by: J. Bruce Fields <bfields@redhat.com>
* nfsd/sunrpc: turn enqueueing a svc_xprt into a svc_serv operationJeff Layton2015-08-101-1/+2
| | | | | | | | | | For now, all services use svc_xprt_do_enqueue, but once we add workqueue-based service support, we'll need to do something different. 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 Layton2015-08-101-1/+5
| | | | | | | | | | | | | 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>
* nfsd: eliminate NFSD_DEBUGMark Salter2015-04-211-1/+1
| | | | | | | | | | | | | | | | | | | Commit f895b252d4edf ("sunrpc: eliminate RPC_DEBUG") introduced use of IS_ENABLED() in a uapi header which leads to a build failure for userspace apps trying to use <linux/nfsd/debug.h>: linux/nfsd/debug.h:18:15: error: missing binary operator before token "(" #if IS_ENABLED(CONFIG_SUNRPC_DEBUG) ^ Since this was only used to define NFSD_DEBUG if CONFIG_SUNRPC_DEBUG is enabled, replace instances of NFSD_DEBUG with CONFIG_SUNRPC_DEBUG. Cc: stable@vger.kernel.org Fixes: f895b252d4edf "sunrpc: eliminate RPC_DEBUG" Signed-off-by: Mark Salter <msalter@redhat.com> Reviewed-by: Jeff Layton <jlayton@primarydata.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
* Merge branch 'for-3.20' of git://linux-nfs.org/~bfields/linuxLinus Torvalds2015-02-122-10/+2
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull nfsd updates from Bruce Fields: "The main change is the pNFS block server support from Christoph, which allows an NFS client connected to shared disk to do block IO to the shared disk in place of NFS reads and writes. This also requires xfs patches, which should arrive soon through the xfs tree, barring unexpected problems. Support for other filesystems is also possible if there's interest. Thanks also to Chuck Lever for continuing work to get NFS/RDMA into shape" * 'for-3.20' of git://linux-nfs.org/~bfields/linux: (32 commits) nfsd: default NFSv4.2 to on nfsd: pNFS block layout driver exportfs: add methods for block layout exports nfsd: add trace events nfsd: update documentation for pNFS support nfsd: implement pNFS layout recalls nfsd: implement pNFS operations nfsd: make find_any_file available outside nfs4state.c nfsd: make find/get/put file available outside nfs4state.c nfsd: make lookup/alloc/unhash_stid available outside nfs4state.c nfsd: add fh_fsid_match helper nfsd: move nfsd_fh_match to nfsfh.h fs: add FL_LAYOUT lease type fs: track fl_owner for leases nfs: add LAYOUT_TYPE_MAX enum value nfsd: factor out a helper to decode nfstime4 values sunrpc/lockd: fix references to the BKL nfsd: fix year-2038 nfs4 state problem svcrdma: Handle additional inline content svcrdma: Move read list XDR round-up logic ...
| * Merge branch 'locks-3.20' of git://git.samba.org/jlayton/linux into for-3.20J. Bruce Fields2015-02-021-10/+16
| |\ | | | | | | | | | | | | Christoph's block pnfs patches have some minor dependencies on these lock patches.
| * | 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>
| * | lockd: xdr: Remove unused functionRickard Strandqvist2015-01-151-8/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | Remove the function nlm_encode_fh() that is not used anywhere. This was partially found by using a static code analysis program called cppcheck. Signed-off-by: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
* | | Merge tag 'nfs-for-3.20-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfsLinus Torvalds2015-02-111-4/+9
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull NFS client updates from Trond Myklebust: "Highlights incluse: Features: - Removing the forced serialisation of open()/close() calls in NFSv4.x (x>0) makes for a significant performance improvement in metadata intensive workloads. - Full support for the pNFS "flexible files" layout type - Further RPC/RDMA client improvements from Chuck Bugfixes: - Stable fix: NFSv4.1 backchannel calls blocking operations with !TASK_RUNNING - Stable fix: pnfs_generic_pg_init_read/write can be called with lseg == NULL - Stable fix: Fix an Oopsable condition when nsm_mon_unmon is called as part of the namespace cleanup, - Stable fix: Ensure we reference the inode for return-on-close in delegreturn - Use SO_REUSEPORT to ensure that NFSv3 TCP connections can rebind to the same source address/port combination during a disconnect/ reconnect event. This is a requirement imposed by most NFSv3 server duplicate reply cache implementations. Optimisations: - Ask for no NFSv4.1 delegations on OPEN if using O_DIRECT Other: - Add Anna Schumaker as co-maintainer for the NFS client" * tag 'nfs-for-3.20-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs: (119 commits) SUNRPC: Cleanup to remove xs_tcp_close() pnfs: delete an unintended goto pnfs/flexfiles: Do not dprintk after the free SUNRPC: Fix stupid typo in xs_sock_set_reuseport SUNRPC: Define xs_tcp_fin_timeout only if CONFIG_SUNRPC_DEBUG SUNRPC: Handle connection reset more efficiently. SUNRPC: Remove the redundant XPRT_CONNECTION_CLOSE flag SUNRPC: Make xs_tcp_close() do a socket shutdown rather than a sock_release SUNRPC: Ensure xs_tcp_shutdown() requests a full close of the connection SUNRPC: Cleanup to remove remaining uses of XPRT_CONNECTION_ABORT SUNRPC: Remove TCP socket linger code SUNRPC: Remove TCP client connection reset hack SUNRPC: TCP/UDP always close the old socket before reconnecting SUNRPC: Add helpers to prevent socket create from racing SUNRPC: Ensure xs_reset_transport() resets the close connection flags SUNRPC: Do not clear the source port in xs_reset_transport SUNRPC: Handle EADDRINUSE on connect SUNRPC: Set SO_REUSEPORT socket option for TCP connections NFSv4.1: Fix pnfs_put_lseg races NFSv4.1: pnfs_send_layoutreturn should use GFP_NOFS ...
| * | | SUNRPC: NULL utsname dereference on NFS umount during namespace cleanupTrond Myklebust2015-02-031-4/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix an Oopsable condition when nsm_mon_unmon is called as part of the namespace cleanup, which now apparently happens after the utsname has been freed. Link: http://lkml.kernel.org/r/20150125220604.090121ae@neptune.home Reported-by: Bruno Prémont <bonbons@linux-vserver.org> Cc: stable@vger.kernel.org # 3.18 Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
* | | | Merge tag 'locks-v3.20-1' of git://git.samba.org/jlayton/linuxLinus Torvalds2015-02-101-10/+16
|\ \ \ \ | |/ / / |/| | / | | |/ | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull file locking related changes #1 from Jeff Layton: "This patchset contains a fairly major overhaul of how file locks are tracked within the inode. Rather than a single list, we now create a per-inode "lock context" that contains individual lists for the file locks, and a new dedicated spinlock for them. There are changes in other trees that are based on top of this set so it may be easiest to pull this in early" * tag 'locks-v3.20-1' of git://git.samba.org/jlayton/linux: locks: update comments that refer to inode->i_flock locks: consolidate NULL i_flctx checks in locks_remove_file locks: keep a count of locks on the flctx lists locks: clean up the lm_change prototype locks: add a dedicated spinlock to protect i_flctx lists locks: remove i_flock field from struct inode locks: convert lease handling to file_lock_context locks: convert posix locks to file_lock_context locks: move flock locks to file_lock_context ceph: move spinlocking into ceph_encode_locks_to_buffer and ceph_count_locks locks: add a new struct file_locking_context pointer to struct inode locks: have locks_release_file use flock_lock_file to release generic flock locks locks: add new struct list_head to struct file_lock
| * | locks: add a dedicated spinlock to protect i_flctx listsJeff Layton2015-01-161-6/+6
| | | | | | | | | | | | | | | | | | | | | | | | We can now add a dedicated spinlock without expanding struct inode. Change to using that to protect the various i_flctx lists. Signed-off-by: Jeff Layton <jlayton@primarydata.com> Acked-by: Christoph Hellwig <hch@lst.de>
| * | locks: convert posix locks to file_lock_contextJeff Layton2015-01-161-7/+13
| |/ | | | | | | | | Signed-off-by: Jeff Layton <jlayton@primarydata.com> Acked-by: Christoph Hellwig <hch@lst.de>
* / LOCKD: Fix a race when initialising nlmsvc_timeoutTrond Myklebust2015-01-051-4/+4
|/ | | | | | | | | | | | | | | This commit fixes a race whereby nlmclnt_init() first starts the lockd daemon, and then calls nlm_bind_host() with the expectation that nlmsvc_timeout has already been initialised. Unfortunately, there is no no synchronisation between lockd() and lockd_up() to guarantee that this is the case. Fix is to move the initialisation of nlmsvc_timeout into lockd_create_svc Fixes: 9a1b6bf818e74 ("LOCKD: Don't call utsname()->nodename...") Cc: Bruce Fields <bfields@fieldses.org> Cc: stable@vger.kernel.org # 3.10.x Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
* Merge branch 'for-3.19' of git://linux-nfs.org/~bfields/linuxLinus Torvalds2014-12-162-2/+2
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull nfsd updates from Bruce Fields: "A comparatively quieter cycle for nfsd this time, but still with two larger changes: - RPC server scalability improvements from Jeff Layton (using RCU instead of a spinlock to find idle threads). - server-side NFSv4.2 ALLOCATE/DEALLOCATE support from Anna Schumaker, enabling fallocate on new clients" * 'for-3.19' of git://linux-nfs.org/~bfields/linux: (32 commits) nfsd4: fix xdr4 count of server in fs_location4 nfsd4: fix xdr4 inclusion of escaped char sunrpc/cache: convert to use string_escape_str() sunrpc: only call test_bit once in svc_xprt_received fs: nfsd: Fix signedness bug in compare_blob sunrpc: add some tracepoints around enqueue and dequeue of svc_xprt sunrpc: convert to lockless lookup of queued server threads sunrpc: fix potential races in pool_stats collection sunrpc: add a rcu_head to svc_rqst and use kfree_rcu to free it sunrpc: require svc_create callers to pass in meaningful shutdown routine sunrpc: have svc_wake_up only deal with pool 0 sunrpc: convert sp_task_pending flag to use atomic bitops sunrpc: move rq_cachetype field to better optimize space sunrpc: move rq_splice_ok flag into rq_flags sunrpc: move rq_dropme flag into rq_flags sunrpc: move rq_usedeferral flag to rq_flags sunrpc: move rq_local field to rq_flags sunrpc: add a generic rq_flags field to svc_rqst and move rq_secure to it nfsd: minor off by one checks in __write_versions() sunrpc: release svc_pool_map reference when serv allocation fails ...
| * sunrpc: require svc_create callers to pass in meaningful shutdown routineJeff Layton2014-12-091-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | 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>
| * Merge tag 'nfs-for-3.19-1' into nfsd for-3.19 branchJ. Bruce Fields2014-12-091-1/+1
| |\ | | | | | | | | | | | | | | | | | | 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.
| * | lockd: ratelimit "lockd: cannot monitor" messagesJeff Layton2014-11-061-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When lockd can't talk to a remote statd, it'll spew a warning message to the ring buffer. If the application is really hammering on locks however, it's possible for that message to spam the logs. Ratelimit it to minimize the potential for harm. Reported-by: Ian Collier <imc@cs.ox.ac.uk> Signed-off-by: Jeff Layton <jlayton@primarydata.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
* | | Merge branch 'for-linus' of ↵Linus Torvalds2014-12-101-1/+1
|\ \ \ | |_|/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull VFS changes from Al Viro: "First pile out of several (there _definitely_ will be more). Stuff in this one: - unification of d_splice_alias()/d_materialize_unique() - iov_iter rewrite - killing a bunch of ->f_path.dentry users (and f_dentry macro). Getting that completed will make life much simpler for unionmount/overlayfs, since then we'll be able to limit the places sensitive to file _dentry_ to reasonably few. Which allows to have file_inode(file) pointing to inode in a covered layer, with dentry pointing to (negative) dentry in union one. Still not complete, but much closer now. - crapectomy in lustre (dead code removal, mostly) - "let's make seq_printf return nothing" preparations - assorted cleanups and fixes There _definitely_ will be more piles" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (63 commits) copy_from_iter_nocache() new helper: iov_iter_kvec() csum_and_copy_..._iter() iov_iter.c: handle ITER_KVEC directly iov_iter.c: convert copy_to_iter() to iterate_and_advance iov_iter.c: convert copy_from_iter() to iterate_and_advance iov_iter.c: get rid of bvec_copy_page_{to,from}_iter() iov_iter.c: convert iov_iter_zero() to iterate_and_advance iov_iter.c: convert iov_iter_get_pages_alloc() to iterate_all_kinds iov_iter.c: convert iov_iter_get_pages() to iterate_all_kinds iov_iter.c: convert iov_iter_npages() to iterate_all_kinds iov_iter.c: iterate_and_advance iov_iter.c: macros for iterating over iov_iter kill f_dentry macro dcache: fix kmemcheck warning in switch_names new helper: audit_file() nfsd_vfs_write(): use file_inode() ncpfs: use file_inode() kill f_dentry uses lockd: get rid of ->f_path.dentry->d_sb ...
| * | lockd: get rid of ->f_path.dentry->d_sbAl Viro2014-11-191-1/+1
| |/ | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* / lockd: eliminate LOCKD_DEBUGJeff Layton2014-11-241-1/+1
|/ | | | | | | | LOCKD_DEBUG is always the same value as CONFIG_SUNRPC_DEBUG, so we can just use it instead. Signed-off-by: Jeff Layton <jlayton@primarydata.com> Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
* Merge tag 'locks-v3.18-1' of git://git.samba.org/jlayton/linuxLinus Torvalds2014-10-111-58/+10
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull file locking related changes from Jeff Layton: "This release is a little more busy for file locking changes than the last: - a set of patches from Kinglong Mee to fix the lockowner handling in knfsd - a pile of cleanups to the internal file lease API. This should get us a bit closer to allowing for setlease methods that can block. There are some dependencies between mine and Bruce's trees this cycle, and I based my tree on top of the requisite patches in Bruce's tree" * tag 'locks-v3.18-1' of git://git.samba.org/jlayton/linux: (26 commits) locks: fix fcntl_setlease/getlease return when !CONFIG_FILE_LOCKING locks: flock_make_lock should return a struct file_lock (or PTR_ERR) locks: set fl_owner for leases to filp instead of current->files locks: give lm_break a return value locks: __break_lease cleanup in preparation of allowing direct removal of leases locks: remove i_have_this_lease check from __break_lease locks: move freeing of leases outside of i_lock locks: move i_lock acquisition into generic_*_lease handlers locks: define a lm_setup handler for leases locks: plumb a "priv" pointer into the setlease routines nfsd: don't keep a pointer to the lease in nfs4_file locks: clean up vfs_setlease kerneldoc comments locks: generic_delete_lease doesn't need a file_lock at all nfsd: fix potential lease memory leak in nfs4_setlease locks: close potential race in lease_get_mtime security: make security_file_set_fowner, f_setown and __f_setown void return locks: consolidate "nolease" routines locks: remove lock_may_read and lock_may_write lockd: rip out deferred lock handling from testlock codepath NFSD: Get reference of lockowner when coping file_lock ...
| * lockd: rip out deferred lock handling from testlock codepathJeff Layton2014-09-091-49/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | As Kinglong points out, the nlm_block->b_fl field is no longer used at all. Also, vfs_test_lock in the generic locking code will only return FILE_LOCK_DEFERRED if FL_SLEEP is set, and it isn't here. The only other place that returns that value is the DLM lock code, but it only does that in dlm_posix_lock, never in dlm_posix_get. Remove all of the deferred locking code from the testlock codepath since it doesn't appear to ever be used anyway. I do have a small concern that this might cause a behavior change in the case where you have a block already sitting on the list when the testlock request comes in, but that looks like it doesn't really work properly anyway. I think it's best to just pass that down to vfs_test_lock and let the filesystem report that instead of trying to infer what's going on with the lock by looking at an existing block. Cc: cluster-devel@redhat.com Signed-off-by: Jeff Layton <jlayton@primarydata.com> Reviewed-by: Kinglong Mee <kinglongmee@gmail.com>
| * locks: Copy fl_lmops information for conflock in locks_copy_conflock()Kinglong Mee2014-09-091-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit d5b9026a67 ([PATCH] knfsd: locks: flag NFSv4-owned locks) using fl_lmops field in file_lock for checking nfsd4 lockowner. But, commit 1a747ee0cc (locks: don't call ->copy_lock methods on return of conflicting locks) causes the fl_lmops of conflock always be NULL. Also, commit 0996905f93 (lockd: posix_test_lock() should not call locks_copy_lock()) caused the fl_lmops of conflock always be NULL too. Make sure copy the private information by fl_copy_lock() in struct file_lock_operations, merge __locks_copy_lock() to fl_copy_lock(). Jeff advice, "Set fl_lmops on conflocks, but don't set fl_ops. fl_ops are superfluous, since they are callbacks into the filesystem. There should be no need to bother the filesystem at all with info in a conflock. But, lock _ownership_ matters for conflocks and that's indicated by the fl_lmops. So you really do want to copy the fl_lmops for conflocks I think." v5: add missing calling of locks_release_private() in nlmsvc_testlock() v4: only copy fl_lmops for conflock, don't copy fl_ops Signed-off-by: Kinglong Mee <kinglongmee@gmail.com> Signed-off-by: Jeff Layton <jlayton@primarydata.com>
| * locks: Remove unused conf argument from lm_grantJoe Perches2014-09-091-9/+3
| | | | | | | | | | | | | | | | | | This argument is always NULL so don't pass it around. [jlayton: remove dependencies on previous patches in series] Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Jeff Layton <jlayton@primarydata.com>
* | Merge branch 'for-3.18' of git://linux-nfs.org/~bfields/linuxLinus Torvalds2014-10-086-69/+136
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull nfsd updates from Bruce Fields: "Highlights: - support the NFSv4.2 SEEK operation (allowing clients to support SEEK_HOLE/SEEK_DATA), thanks to Anna. - end the grace period early in a number of cases, mitigating a long-standing annoyance, thanks to Jeff - improve SMP scalability, thanks to Trond" * 'for-3.18' of git://linux-nfs.org/~bfields/linux: (55 commits) nfsd: eliminate "to_delegation" define NFSD: Implement SEEK NFSD: Add generic v4.2 infrastructure svcrdma: advertise the correct max payload nfsd: introduce nfsd4_callback_ops nfsd: split nfsd4_callback initialization and use nfsd: introduce a generic nfsd4_cb nfsd: remove nfsd4_callback.cb_op nfsd: do not clear rpc_resp in nfsd4_cb_done_sequence nfsd: fix nfsd4_cb_recall_done error handling nfsd4: clarify how grace period ends nfsd4: stop grace_time update at end of grace period nfsd: skip subsequent UMH "create" operations after the first one for v4.0 clients nfsd: set and test NFSD4_CLIENT_STABLE bit to reduce nfsdcltrack upcalls nfsd: serialize nfsdcltrack upcalls for a particular client nfsd: pass extra info in env vars to upcalls to allow for early grace period end nfsd: add a v4_end_grace file to /proc/fs/nfsd lockd: add a /proc/fs/lockd/nlm_end_grace file nfsd: reject reclaim request when client has already sent RECLAIM_COMPLETE nfsd: remove redundant boot_time parm from grace_done client tracking op ...
| * | lockd: add a /proc/fs/lockd/nlm_end_grace fileJeff Layton2014-09-174-0/+130
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add a new procfile that will allow a (privileged) userland process to end the NLM grace period early. The basic idea here will be to have sm-notify write to this file, if it sent out no NOTIFY requests when it runs. In that situation, we can generally expect that there will be no reclaim requests so the grace period can be lifted early. Signed-off-by: Jeff Layton <jlayton@primarydata.com>
| * | lockd: move lockd's grace period handling into its own moduleJeff Layton2014-09-174-68/+2
| |/ | | | | | | | | | | | | | | | | | | | | | | Currently, all of the grace period handling is part of lockd. Eventually though we'd like to be able to build v4-only servers, at which point we'll need to put all of this elsewhere. Move the code itself into fs/nfs_common and have it build a grace.ko module. Then, rejigger the Kconfig options so that both nfsd and lockd enable it automatically. Signed-off-by: Jeff Layton <jlayton@primarydata.com>
| * lockd: Do not start the lockd thread before we've set nlmsvc_rqst->rq_taskTrond Myklebust2014-09-021-1/+2
| | | | | | | | | | | | | | | | This fixes an Oopsable race when starting lockd. Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com> Reviewed-by: Jeff Layton <jlayton@primarydata.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
| * lockd: Ensure that lockd_start_svc sets the server rq_task...Trond Myklebust2014-08-171-0/+2
| | | | | | | | | | Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
* | Merge tag 'nfs-for-3.18-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfsLinus Torvalds2014-10-081-0/+6
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull NFS client updates from Trond Myklebust: "Highlights include: Stable fixes: - fix an NFSv4.1 state renewal regression - fix open/lock state recovery error handling - fix lock recovery when CREATE_SESSION/SETCLIENTID_CONFIRM fails - fix statd when reconnection fails - don't wake tasks during connection abort - don't start reboot recovery if lease check fails - fix duplicate proc entries Features: - pNFS block driver fixes and clean ups from Christoph - More code cleanups from Anna - Improve mmap() writeback performance - Replace use of PF_TRANS with a more generic mechanism for avoiding deadlocks in nfs_release_page" * tag 'nfs-for-3.18-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs: (66 commits) NFSv4.1: Fix an NFSv4.1 state renewal regression NFSv4: fix open/lock state recovery error handling NFSv4: Fix lock recovery when CREATE_SESSION/SETCLIENTID_CONFIRM fails NFS: Fabricate fscache server index key correctly SUNRPC: Add missing support for RPC_CLNT_CREATE_NO_RETRANS_TIMEOUT NFSv3: Fix missing includes of nfs3_fs.h NFS/SUNRPC: Remove other deadlock-avoidance mechanisms in nfs_release_page() NFS: avoid waiting at all in nfs_release_page when congested. NFS: avoid deadlocks with loop-back mounted NFS filesystems. MM: export page_wakeup functions SCHED: add some "wait..on_bit...timeout()" interfaces. NFS: don't use STABLE writes during writeback. NFSv4: use exponential retry on NFS4ERR_DELAY for async requests. rpc: Add -EPERM processing for xs_udp_send_request() rpc: return sent and err from xs_sendpages() lockd: Try to reconnect if statd has moved SUNRPC: Don't wake tasks during connection abort Fixing lease renewal nfs: fix duplicate proc entries pnfs/blocklayout: Fix a 64-bit division/remainder issue in bl_map_stripe ...
| * | lockd: Try to reconnect if statd has movedBenjamin Coddington2014-09-241-0/+6
| |/ | | | | | | | | | | | | | | | | | | If rpc.statd is restarted, upcalls to monitor hosts can fail with ECONNREFUSED. In that case force a lookup of statd's new port and retry the upcall. Signed-off-by: Benjamin Coddington <bcodding@redhat.com> Cc: stable@vger.kernel.org Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
* / lockd: fix rpcbind crash on lockd startup failureJ. Bruce Fields2014-09-081-3/+1
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Nikita Yuschenko reported that booting a kernel with init=/bin/sh and then nfs mounting without portmap or rpcbind running using a busybox mount resulted in: # mount -t nfs 10.30.130.21:/opt /mnt svc: failed to register lockdv1 RPC service (errno 111). lockd_up: makesock failed, error=-111 Unable to handle kernel paging request for data at address 0x00000030 Faulting instruction address: 0xc055e65c Oops: Kernel access of bad area, sig: 11 [#1] MPC85xx CDS Modules linked in: CPU: 0 PID: 1338 Comm: mount Not tainted 3.10.44.cge #117 task: cf29cea0 ti: cf35c000 task.ti: cf35c000 NIP: c055e65c LR: c0566490 CTR: c055e648 REGS: cf35dad0 TRAP: 0300 Not tainted (3.10.44.cge) MSR: 00029000 <CE,EE,ME> CR: 22442488 XER: 20000000 DEAR: 00000030, ESR: 00000000 GPR00: c05606f4 cf35db80 cf29cea0 cf0ded80 cf0dedb8 00000001 1dec3086 00000000 GPR08: 00000000 c07b1640 00000007 1dec3086 22442482 100b9758 00000000 10090ae8 GPR16: 00000000 000186a5 00000000 00000000 100c3018 bfa46edc 100b0000 bfa46ef0 GPR24: cf386ae0 c07834f0 00000000 c0565f88 00000001 cf0dedb8 00000000 cf0ded80 NIP [c055e65c] call_start+0x14/0x34 LR [c0566490] __rpc_execute+0x70/0x250 Call Trace: [cf35db80] [00000080] 0x80 (unreliable) [cf35dbb0] [c05606f4] rpc_run_task+0x9c/0xc4 [cf35dbc0] [c0560840] rpc_call_sync+0x50/0xb8 [cf35dbf0] [c056ee90] rpcb_register_call+0x54/0x84 [cf35dc10] [c056f24c] rpcb_register+0xf8/0x10c [cf35dc70] [c0569e18] svc_unregister.isra.23+0x100/0x108 [cf35dc90] [c0569e38] svc_rpcb_cleanup+0x18/0x30 [cf35dca0] [c0198c5c] lockd_up+0x1dc/0x2e0 [cf35dcd0] [c0195348] nlmclnt_init+0x2c/0xc8 [cf35dcf0] [c015bb5c] nfs_start_lockd+0x98/0xec [cf35dd20] [c015ce6c] nfs_create_server+0x1e8/0x3f4 [cf35dd90] [c0171590] nfs3_create_server+0x10/0x44 [cf35dda0] [c016528c] nfs_try_mount+0x158/0x1e4 [cf35de20] [c01670d0] nfs_fs_mount+0x434/0x8c8 [cf35de70] [c00cd3bc] mount_fs+0x20/0xbc [cf35de90] [c00e4f88] vfs_kern_mount+0x50/0x104 [cf35dec0] [c00e6e0c] do_mount+0x1d0/0x8e0 [cf35df10] [c00e75ac] SyS_mount+0x90/0xd0 [cf35df40] [c000ccf4] ret_from_syscall+0x0/0x3c The addition of svc_shutdown_net() resulted in two calls to svc_rpcb_cleanup(); the second is no longer necessary and crashes when it calls rpcb_register_call with clnt=NULL. Reported-by: Nikita Yushchenko <nyushchenko@dev.rtsoft.ru> Fixes: 679b033df484 "lockd: ensure we tear down any live sockets when socket creation fails during lockd_up" Cc: stable@vger.kernel.org Acked-by: Jeff Layton <jlayton@primarydata.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
* fs: lockd: Use ktime_get_ns()Thomas Gleixner2014-07-231-3/+1
| | | | | | | | | | | | | Replace the ever recurring: ts = ktime_get_ts(); ns = timespec_to_ns(&ts); with ns = ktime_get_ns(); Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Trond Myklebust <trond.myklebust@primarydata.com> Cc: "J. Bruce Fields" <bfields@fieldses.org> Signed-off-by: John Stultz <john.stultz@linaro.org>
* Merge branch 'for-3.16' of git://linux-nfs.org/~bfields/linuxLinus Torvalds2014-06-105-3/+8
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull nfsd updates from Bruce Fields: "The largest piece is a long-overdue rewrite of the xdr code to remove some annoying limitations: for example, there was no way to return ACLs larger than 4K, and readdir results were returned only in 4k chunks, limiting performance on large directories. Also: - part of Neil Brown's work to make NFS work reliably over the loopback interface (so client and server can run on the same machine without deadlocks). The rest of it is coming through other trees. - cleanup and bugfixes for some of the server RDMA code, from Steve Wise. - Various cleanup of NFSv4 state code in preparation for an overhaul of the locking, from Jeff, Trond, and Benny. - smaller bugfixes and cleanup from Christoph Hellwig and Kinglong Mee. Thanks to everyone! This summer looks likely to be busier than usual for knfsd. Hopefully we won't break it too badly; testing definitely welcomed" * 'for-3.16' of git://linux-nfs.org/~bfields/linux: (100 commits) nfsd4: fix FREE_STATEID lockowner leak svcrdma: Fence LOCAL_INV work requests svcrdma: refactor marshalling logic nfsd: don't halt scanning the DRC LRU list when there's an RC_INPROG entry nfs4: remove unused CHANGE_SECURITY_LABEL nfsd4: kill READ64 nfsd4: kill READ32 nfsd4: simplify server xdr->next_page use nfsd4: hash deleg stateid only on successful nfs4_set_delegation nfsd4: rename recall_lock to state_lock nfsd: remove unneeded zeroing of fields in nfsd4_proc_compound nfsd: fix setting of NFS4_OO_CONFIRMED in nfsd4_open nfsd4: use recall_lock for delegation hashing nfsd: fix laundromat next-run-time calculation nfsd: make nfsd4_encode_fattr static SUNRPC/NFSD: Remove using of dprintk with KERN_WARNING nfsd: remove unused function nfsd_read_file nfsd: getattr for FATTR4_WORD0_FILES_AVAIL needs the statfs buffer NFSD: Error out when getting more than one fsloc/secinfo/uuid NFSD: Using type of uint32_t for ex_nflavors instead of int ...
| * nfsd: move <linux/nfsd/export.h> to fs/nfsdChristoph Hellwig2014-05-061-1/+0
| | | | | | | | | | | | | | There are no legitimate users outside of fs/nfsd, so move it there. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
| * nfsd: remove <linux/nfsd/nfsfh.h>Christoph Hellwig2014-05-064-1/+7
| | | | | | | | | | | | | | | | | | The only real user of this header is fs/nfsd/nfsfh.h, so merge the two. Various lockѕ source files used it to indirectly get other sunrpc or nfs headers, so fix those up. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
| * lockd: avoid warning when CONFIG_SYSCTL undefinedKees Cook2014-05-061-1/+1
| | | | | | | | | | | | | | | | | | | | | | When building without CONFIG_SYSCTL, the compiler saw an unused label. This moves the label into the #ifdef it is used under. fs/lockd/svc.c: In function ‘init_nlm’: fs/lockd/svc.c:626:1: warning: label ‘err_sysctl’ defined but not used [-Wunused-label] Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
* | lockd: convert use of typedef ctl_table to struct ctl_tableJoe Perches2014-06-061-3/+3
|/ | | | | | | | This typedef is unnecessary and should just be removed. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* lockd: ensure we tear down any live sockets when socket creation fails ↵Jeff Layton2014-03-281-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | during lockd_up We had a Fedora ABRT report with a stack trace like this: kernel BUG at net/sunrpc/svc.c:550! invalid opcode: 0000 [#1] SMP [...] CPU: 2 PID: 913 Comm: rpc.nfsd Not tainted 3.13.6-200.fc20.x86_64 #1 Hardware name: Hewlett-Packard HP ProBook 4740s/1846, BIOS 68IRR Ver. F.40 01/29/2013 task: ffff880146b00000 ti: ffff88003f9b8000 task.ti: ffff88003f9b8000 RIP: 0010:[<ffffffffa0305fa8>] [<ffffffffa0305fa8>] svc_destroy+0x128/0x130 [sunrpc] RSP: 0018:ffff88003f9b9de0 EFLAGS: 00010206 RAX: ffff88003f829628 RBX: ffff88003f829600 RCX: 00000000000041ee RDX: 0000000000000000 RSI: 0000000000000286 RDI: 0000000000000286 RBP: ffff88003f9b9de8 R08: 0000000000017360 R09: ffff88014fa97360 R10: ffffffff8114ce57 R11: ffffea00051c9c00 R12: ffff88003f829600 R13: 00000000ffffff9e R14: ffffffff81cc7cc0 R15: 0000000000000000 FS: 00007f4fde284840(0000) GS:ffff88014fa80000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f4fdf5192f8 CR3: 00000000a569a000 CR4: 00000000001407e0 Stack: ffff88003f792300 ffff88003f9b9e18 ffffffffa02de02a 0000000000000000 ffffffff81cc7cc0 ffff88003f9cb000 0000000000000008 ffff88003f9b9e60 ffffffffa033bb35 ffffffff8131c86c ffff88003f9cb000 ffff8800a5715008 Call Trace: [<ffffffffa02de02a>] lockd_up+0xaa/0x330 [lockd] [<ffffffffa033bb35>] nfsd_svc+0x1b5/0x2f0 [nfsd] [<ffffffff8131c86c>] ? simple_strtoull+0x2c/0x50 [<ffffffffa033c630>] ? write_pool_threads+0x280/0x280 [nfsd] [<ffffffffa033c6bb>] write_threads+0x8b/0xf0 [nfsd] [<ffffffff8114efa4>] ? __get_free_pages+0x14/0x50 [<ffffffff8114eff6>] ? get_zeroed_page+0x16/0x20 [<ffffffff811dec51>] ? simple_transaction_get+0xb1/0xd0 [<ffffffffa033c098>] nfsctl_transaction_write+0x48/0x80 [nfsd] [<ffffffff811b8b34>] vfs_write+0xb4/0x1f0 [<ffffffff811c3f99>] ? putname+0x29/0x40 [<ffffffff811b9569>] SyS_write+0x49/0xa0 [<ffffffff810fc2a6>] ? __audit_syscall_exit+0x1f6/0x2a0 [<ffffffff816962e9>] system_call_fastpath+0x16/0x1b Code: 31 c0 e8 82 db 37 e1 e9 2a ff ff ff 48 8b 07 8b 57 14 48 c7 c7 d5 c6 31 a0 48 8b 70 20 31 c0 e8 65 db 37 e1 e9 f4 fe ff ff 0f 0b <0f> 0b 66 0f 1f 44 00 00 0f 1f 44 00 00 55 48 89 e5 41 56 41 55 RIP [<ffffffffa0305fa8>] svc_destroy+0x128/0x130 [sunrpc] RSP <ffff88003f9b9de0> Evidently, we created some lockd sockets and then failed to create others. make_socks then returned an error and we tried to tear down the svc, but svc->sv_permsocks was not empty so we ended up tripping over the BUG() in svc_destroy(). Fix this by ensuring that we tear down any live sockets we created when socket creation is going to return an error. Fixes: 786185b5f8abefa (SUNRPC: move per-net operations from...) Reported-by: Raphos <raphoszap@laposte.net> Signed-off-by: Jeff Layton <jlayton@redhat.com> Reviewed-by: Stanislav Kinsbursky <skinsbursky@parallels.com> Cc: stable@vger.kernel.org Signed-off-by: J. Bruce Fields <bfields@redhat.com>
* lockd: send correct lock when granting a delayed lock.NeilBrown2014-02-131-0/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If an NFS client attempts to get a lock (using NLM) and the lock is not available, the server will remember the request and when the lock becomes available it will send a GRANT request to the client to provide the lock. If the client already held an adjacent lock, the GRANT callback will report the union of the existing and new locks, which can confuse the client. This happens because __posix_lock_file (called by vfs_lock_file) updates the passed-in file_lock structure when adjacent or over-lapping locks are found. To avoid this problem we take a copy of the two fields that can be changed (fl_start and fl_end) before the call and restore them afterwards. An alternate would be to allocate a 'struct file_lock', initialise it, use locks_copy_lock() to take a copy, then locks_release_private() after the vfs_lock_file() call. But that is a lot more work. Reported-by: Olaf Kirch <okir@suse.com> Signed-off-by: NeilBrown <neilb@suse.de> Cc: stable@vger.kernel.org Signed-off-by: J. Bruce Fields <bfields@redhat.com> -- v1 had a couple of issues (large on-stack struct and didn't really work properly). This version is much better tested. Signed-off-by: J. Bruce Fields <bfields@redhat.com>
* LOCKD: Don't call utsname()->nodename from nlmclnt_setlockargsTrond Myklebust2013-08-052-6/+12
| | | | | | | | | | | | | | | | | | | | | | Firstly, nlmclnt_setlockargs can be called from a reclaimer thread, in which case we're in entirely the wrong namespace. Secondly, commit 8aac62706adaaf0fab02c4327761561c8bda9448 (move exit_task_namespaces() outside of exit_notify()) now means that exit_task_work() is called after exit_task_namespaces(), which triggers an Oops when we're freeing up the locks. Fix this by ensuring that we initialise the nlm_host's rpc_client at mount time, so that the cl_nodename field is initialised to the value of utsname()->nodename that the net namespace uses. Then replace the lockd callers of utsname()->nodename. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> Cc: Toralf Förster <toralf.foerster@gmx.de> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Nix <nix@esperi.org.uk> Cc: Jeff Layton <jlayton@redhat.com> Cc: stable@vger.kernel.org # 3.10.x
* Merge branch 'for-3.11' of git://linux-nfs.org/~bfields/linuxLinus Torvalds2013-07-171-0/+4
|\ | | | | | | | | | | | | | | | | | | Pull nfsd bugfixes from Bruce Fields: "Just three minor bugfixes" * 'for-3.11' of git://linux-nfs.org/~bfields/linux: svcrdma: underflow issue in decode_write_list() nfsd4: fix minorversion support interface lockd: protect nlm_blocked access in nlmsvc_retry_blocked
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