pm24.git/include/linux/sunrpc, branch v5.2-rc2

Merge tag 'nfsd-5.2' of git://linux-nfs.org/~bfields/linux

2019-05-16T01:21:43Z

Pull nfsd updates from Bruce Fields: "This consists mostly of nfsd container work: Scott Mayhew revived an old api that communicates with a userspace daemon to manage some on-disk state that's used to track clients across server reboots. We've been using a usermode_helper upcall for that, but it's tough to run those with the right namespaces, so a daemon is much friendlier to container use cases. Trond fixed nfsd's handling of user credentials in user namespaces. He also contributed patches that allow containers to support different sets of NFS protocol versions. The only remaining container bug I'm aware of is that the NFS reply cache is shared between all containers. If anyone's aware of other gaps in our container support, let me know. The rest of this is miscellaneous bugfixes" * tag 'nfsd-5.2' of git://linux-nfs.org/~bfields/linux: (23 commits) nfsd: update callback done processing locks: move checks from locks_free_lock() to locks_release_private() nfsd: fh_drop_write in nfsd_unlink nfsd: allow fh_want_write to be called twice nfsd: knfsd must use the container user namespace SUNRPC: rsi_parse() should use the current user namespace SUNRPC: Fix the server AUTH_UNIX userspace mappings lockd: Pass the user cred from knfsd when starting the lockd server SUNRPC: Temporary sockets should inherit the cred from their parent SUNRPC: Cache the process user cred in the RPC server listener nfsd: Allow containers to set supported nfs versions nfsd: Add custom rpcbind callbacks for knfsd SUNRPC: Allow further customisation of RPC program registration SUNRPC: Clean up generic dispatcher code SUNRPC: Add a callback to initialise server requests SUNRPC/nfs: Fix return value for nfs4_callback_compound() nfsd: handle legacy client tracking records sent by nfsdcld nfsd: re-order client tracking method selection nfsd: keep a tally of RECLAIM_COMPLETE operations when using nfsdcld nfsd: un-deprecate nfsdcld ...

SUNRPC: Cache cred of process creating the rpc_client

2019-04-26T20:00:48Z

When converting kuids to AUTH_UNIX creds, etc we will want to use the same user namespace as the process that created the rpc client. Signed-off-by: Trond Myklebust Signed-off-by: Anna Schumaker

SUNRPC: Add the 'softerr' rpc_client flag

2019-04-25T18:18:14Z

Add the 'softerr' rpc client flag that sets the RPC_TASK_TIMEOUT flag on all new rpc tasks that are attached to that rpc client. Signed-off-by: Trond Myklebust Signed-off-by: Anna Schumaker

SUNRPC: Add tracking of RPC level errors

2019-04-25T18:18:13Z

Add variables to track RPC level errors so that we can distinguish between issue that arose in the RPC transport layer as opposed to those arising from the reply message. Signed-off-by: Trond Myklebust Signed-off-by: Anna Schumaker

SUNRPC: Simplify queue timeouts using timer_reduce()

2019-04-25T18:18:13Z

Simplify the setting of queue timeouts by using the timer_reduce() function. Signed-off-by: Trond Myklebust Signed-off-by: Anna Schumaker

SUNRPC: Fix up tracking of timeouts

2019-04-25T18:18:13Z

Add a helper to ensure that debugfs and friends print out the correct current task timeout value. Signed-off-by: Trond Myklebust Signed-off-by: Anna Schumaker

SUNRPC: Add function rpc_sleep_on_timeout()

2019-04-25T18:18:13Z

Clean up the RPC task sleep interfaces by replacing the task->tk_timeout 'hidden parameter' to rpc_sleep_on() with a new function that takes an absolute timeout. Signed-off-by: Trond Myklebust Signed-off-by: Anna Schumaker

SUNRPC: Remove unused argument 'action' from rpc_sleep_on_priority()

2019-04-25T18:18:12Z

None of the callers set the 'action' argument, so let's just remove it. Signed-off-by: Trond Myklebust Signed-off-by: Anna Schumaker

SUNRPC: Refactor xprt_request_wait_receive()

2019-04-25T18:18:12Z

Convert the transport callback to actually put the request to sleep instead of just setting a timeout. This is in preparation for rpc_sleep_on_timeout(). Signed-off-by: Trond Myklebust Signed-off-by: Anna Schumaker

SUNRPC: Fix up task signalling

2019-04-25T18:18:12Z

The RPC_TASK_KILLED flag should really not be set from another context because it can clobber data in the struct task when task->tk_flags is changed non-atomically. Let's therefore swap out RPC_TASK_KILLED with an atomic flag, and add a function to set that flag and safely wake up the task. Signed-off-by: Trond Myklebust Signed-off-by: Anna Schumaker