linux-stable.git/include/linux/sunrpc, branch linux-5.13.y

SUNRPC query transport's source port

2021-09-18T11:41:53+00:00

[ Upstream commit a8482488a7d6d320f63a9ee1912dbb5ae5b80a61 ]

Provide ability to query transport's source port.

Signed-off-by: Olga Kornievskaia 
Signed-off-by: Trond Myklebust 
Signed-off-by: Sasha Levin

SUNRPC: Fix potential memory corruption

2021-09-18T11:41:53+00:00

[ Upstream commit c2dc3e5fad13aca5d7bdf4bcb52b1a1d707c8555 ]

We really should not call rpc_wake_up_queued_task_set_status() with
xprt->snd_task as an argument unless we are certain that is actually an
rpc_task.

Fixes: 0445f92c5d53 ("SUNRPC: Fix disconnection races")
Signed-off-by: Trond Myklebust 
Signed-off-by: Anna Schumaker 
Signed-off-by: Sasha Levin

SUNRPC: Fix a NULL pointer deref in trace_svc_stats_latency()

2021-09-15T08:00:48+00:00

[ Upstream commit 5c11720767f70d34357d00a15ba5a0ad052c40fe ]

Some paths through svc_process() leave rqst->rq_procinfo set to
NULL, which triggers a crash if tracing happens to be enabled.

Fixes: 89ff87494c6e ("SUNRPC: Display RPC procedure names instead of proc numbers")
Signed-off-by: Chuck Lever 
Signed-off-by: Sasha Levin

SUNRPC: More fixes for backlog congestion

2021-05-26T10:36:13+00:00

Ensure that we fix the XPRT_CONGESTED starvation issue for RDMA as well
as socket based transports.
Ensure we always initialise the request after waking up from the backlog
list.

Fixes: e877a88d1f06 ("SUNRPC in case of backlog, hand free slots directly to waiting task")
Signed-off-by: Trond Myklebust

Merge tag 'nfs-for-5.13-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs

2021-05-07T18:23:41+00:00

Pull NFS client updates from Trond Myklebust:
 "Highlights include:

  Stable fixes:

   - Add validation of the UDP retrans parameter to prevent shift
     out-of-bounds

   - Don't discard pNFS layout segments that are marked for return

  Bugfixes:

   - Fix a NULL dereference crash in xprt_complete_bc_request() when the
     NFSv4.1 server misbehaves.

   - Fix the handling of NFS READDIR cookie verifiers

   - Sundry fixes to ensure attribute revalidation works correctly when
     the server does not return post-op attributes.

   - nfs4_bitmask_adjust() must not change the server global bitmasks

   - Fix major timeout handling in the RPC code.

   - NFSv4.2 fallocate() fixes.

   - Fix the NFSv4.2 SEEK_HOLE/SEEK_DATA end-of-file handling

   - Copy offload attribute revalidation fixes

   - Fix an incorrect filehandle size check in the pNFS flexfiles driver

   - Fix several RDMA transport setup/teardown races

   - Fix several RDMA queue wrapping issues

   - Fix a misplaced memory read barrier in sunrpc's call_decode()

  Features:

   - Micro optimisation of the TCP transmission queue using TCP_CORK

   - statx() performance improvements by further splitting up the
     tracking of invalid cached file metadata.

   - Support the NFSv4.2 'change_attr_type' attribute and use it to
     optimise handling of change attribute updates"

* tag 'nfs-for-5.13-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs: (85 commits)
  xprtrdma: Fix a NULL dereference in frwr_unmap_sync()
  sunrpc: Fix misplaced barrier in call_decode
  NFSv4.2: Remove ifdef CONFIG_NFSD from NFSv4.2 client SSC code.
  xprtrdma: Move fr_mr field to struct rpcrdma_mr
  xprtrdma: Move the Work Request union to struct rpcrdma_mr
  xprtrdma: Move fr_linv_done field to struct rpcrdma_mr
  xprtrdma: Move cqe to struct rpcrdma_mr
  xprtrdma: Move fr_cid to struct rpcrdma_mr
  xprtrdma: Remove the RPC/RDMA QP event handler
  xprtrdma: Don't display r_xprt memory addresses in tracepoints
  xprtrdma: Add an rpcrdma_mr_completion_class
  xprtrdma: Add tracepoints showing FastReg WRs and remote invalidation
  xprtrdma: Avoid Send Queue wrapping
  xprtrdma: Do not wake RPC consumer on a failed LocalInv
  xprtrdma: Do not recycle MR after FastReg/LocalInv flushes
  xprtrdma: Clarify use of barrier in frwr_wc_localinv_done()
  xprtrdma: Rename frwr_release_mr()
  xprtrdma: rpcrdma_mr_pop() already does list_del_init()
  xprtrdma: Delete rpcrdma_recv_buffer_put()
  xprtrdma: Fix cwnd update ordering
  ...

SUNRPC: Set TCP_CORK until the transmit queue is empty

2021-04-05T13:04:20+00:00

When we have multiple RPC requests queued up, it makes sense to set the
TCP_CORK option while the transmit queue is non-empty.

Signed-off-by: Trond Myklebust

svcrdma: Remove svc_rdma_recv_ctxt::rc_pages and ::rc_arg

2021-03-31T19:57:48+00:00

These fields are no longer used.

The size of struct svc_rdma_recv_ctxt is now less than 300 bytes on
x86_64, down from 2440 bytes.

Signed-off-by: Chuck Lever

svcrdma: Remove sc_read_complete_q

2021-03-31T19:57:48+00:00

Now that svc_rdma_recvfrom() waits for Read completion,
sc_read_complete_q is no longer used.

Signed-off-by: Chuck Lever

SUNRPC: Export svc_xprt_received()

2021-03-22T17:22:13+00:00

Prepare svc_xprt_received() to be called from transport code instead
of from generic RPC server code.

Signed-off-by: Chuck Lever

svcrdma: Remove unused sc_pages field

2021-03-22T17:22:13+00:00

Clean up. This significantly reduces the size of struct
svc_rdma_send_ctxt.

Signed-off-by: Chuck Lever