linux-stable.git/include/linux/sunrpc/clnt.h, branch linux-4.1.y

SUNRPC: cleanup ida information when removing sunrpc module

2017-03-06T22:31:11+00:00

[ Upstream commit c929ea0b910355e1876c64431f3d5802f95b3d75 ]

After removing sunrpc module, I get many kmemleak information as,
unreferenced object 0xffff88003316b1e0 (size 544):
  comm "gssproxy", pid 2148, jiffies 4294794465 (age 4200.081s)
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [] kmemleak_alloc+0x4a/0xa0
    [] kmem_cache_alloc+0x15e/0x1f0
    [] ida_pre_get+0xaa/0x150
    [] ida_simple_get+0xad/0x180
    [] nlmsvc_lookup_host+0x4ab/0x7f0 [lockd]
    [] lockd+0x4d/0x270 [lockd]
    [] param_set_timeout+0x55/0x100 [lockd]
    [] svc_defer+0x114/0x3f0 [sunrpc]
    [] svc_defer+0x2d7/0x3f0 [sunrpc]
    [] rpc_show_info+0x8a/0x110 [sunrpc]
    [] proc_reg_write+0x7f/0xc0
    [] __vfs_write+0xdf/0x3c0
    [] vfs_write+0xef/0x240
    [] SyS_write+0xad/0x130
    [] entry_SYSCALL_64_fastpath+0x1a/0xa9
    [] 0xffffffffffffffff

I found, the ida information (dynamic memory) isn't cleanup.

Signed-off-by: Kinglong Mee 
Fixes: 2f048db4680a ("SUNRPC: Add an identifier for struct rpc_clnt")
Cc: stable@vger.kernel.org # v3.12+
Signed-off-by: Trond Myklebust 
Signed-off-by: Sasha Levin

nfsd4/rpc: move backchannel create logic into rpc code

2016-07-11T00:19:57+00:00

[ Upstream commit d50039ea5ee63c589b0434baa5ecf6e5075bb6f9 ]

Also simplify the logic a bit.

Cc: stable@vger.kernel.org
Signed-off-by: J. Bruce Fields 
Acked-by: Trond Myklebust 
Signed-off-by: Sasha Levin

SUNRPC: NULL utsname dereference on NFS umount during namespace cleanup

2015-02-03T21:40:17+00:00

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 
Cc: stable@vger.kernel.org # 3.18
Signed-off-by: Trond Myklebust

sunrpc: add debugfs file for displaying client rpc_task queue

2014-11-27T18:14:51+00:00

It's possible to get a dump of the RPC task queue by writing a value to
/proc/sys/sunrpc/rpc_debug. If you write any value to that file, you get
a dump of the RPC client task list into the log buffer. This is a rather
inconvenient interface however, and makes it hard to get immediate info
about the task queue.

Add a new directory hierarchy under debugfs:

    sunrpc/
        rpc_clnt/
            /

Within each clientid directory we create a new "tasks" file that will
dump info similar to what shows up in the log buffer, but with a few
small differences -- we avoid printing raw kernel addresses in favor of
symbolic names and the XID is also displayed.

Signed-off-by: Jeff Layton 
Signed-off-by: Trond Myklebust

SUNRPC: New helper for creating client with rpc_xprt

2014-03-30T14:47:36+00:00

Signed-off-by: Kinglong Mee 
Signed-off-by: J. Bruce Fields

SUNRPC: Add a helper to switch the transport of an rpc_clnt

2013-10-28T19:21:32+00:00

Add an RPC client API to redirect an rpc_clnt's transport from a
source server to a destination server during a migration event.

Signed-off-by: Trond Myklebust 
[ cel: forward ported to 3.12 ]
Signed-off-by: Chuck Lever 
Signed-off-by: Trond Myklebust

SUNRPC: Add RPC task and client level options to disable the resend timeout

2013-10-01T22:22:11+00:00

Signed-off-by: Trond Myklebust

SUNRPC: Add an identifier for struct rpc_clnt

2013-09-05T14:13:15+00:00

Add an identifier in order to aid debugging.

Signed-off-by: Trond Myklebust

SUNRPC: Remove the rpc_client->cl_dentry

2013-09-01T15:12:42+00:00

It is now redundant.

Signed-off-by: Trond Myklebust

SUNRPC: Add a framework to clean up management of rpc_pipefs directories

2013-08-30T13:19:38+00:00

The current system requires everyone to set up notifiers, manage directory
locking, etc.
What we really want to do is have the rpc_client create its directory,
and then create all the entries.

This patch will allow the RPCSEC_GSS and NFS code to register all the
objects that they want to have appear in the directory, and then have
the sunrpc code call them back to actually create/destroy their pipefs
dentries when the rpc_client creates/destroys the parent.

Signed-off-by: Trond Myklebust