Chuck Lever deaa5c96c2 SUNRPC: Address Kerberos performance/behavior regression ...

When using Kerberos with v4.20, I've observed frequent connection
loss on heavy workloads. I traced it down to the client underrunning
the GSS sequence number window -- NFS servers are required to drop
the RPC with the low sequence number, and also drop the connection
to signal that an RPC was dropped.

Bisected to commit 918f3c1fe83c ("SUNRPC: Improve latency for
interactive tasks").

I've got a one-line workaround for this issue, which is easy to
backport to v4.20 while a more permanent solution is being derived.
Essentially, tk_owner-based sorting is disabled for RPCs that carry
a GSS sequence number.

Fixes: 918f3c1fe83c ("SUNRPC: Improve latency for interactive ... ")
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>

2019-01-15 15:36:41 -05:00

..

auth_gss

SUNRPC: Ensure we respect the RPCSEC_GSS sequence number limit

2019-01-15 15:32:21 -05:00

xprtrdma

xprtrdma: Double free in rpcrdma_sendctxs_create()

2019-01-08 12:06:17 -05:00

addr.c

replace strict_strto calls

2014-07-12 18:45:49 -04:00

auth_null.c

SUNRPC: remove crbind rpc_cred operation

2018-12-19 13:52:46 -05:00

auth_unix.c

SUNRPC: simplify auth_unix.

2018-12-19 13:52:46 -05:00

auth.c

sunrpc: kernel BUG at kernel/cred.c:825!

2019-01-09 16:54:23 -05:00

backchannel_rqst.c

SUNRPC: Fix some kernel doc complaints

2019-01-02 12:05:18 -05:00

cache.c

sunrpc: fix cache_head leak due to queued request

2018-12-04 15:42:08 -05:00

clnt.c

SUNRPC: Ensure we respect the RPCSEC_GSS sequence number limit

2019-01-15 15:32:21 -05:00

debugfs.c

net: Use octal not symbolic permissions

2018-03-26 12:07:48 -04:00

Kconfig

IB: Revert "remove redundant INFINIBAND kconfig dependencies"

2018-05-28 10:40:16 -06:00

Makefile

SUNRPC: remove generic cred code.

2018-12-19 13:52:46 -05:00

netns.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

rpc_pipe.c

sunrpc: convert to DEFINE_SHOW_ATTRIBUTE

2019-01-02 12:05:49 -05:00

rpcb_clnt.c

sunrpc: convert unnecessary GFP_ATOMIC to GFP_NOFS

2019-01-02 12:05:19 -05:00

sched.c

NFS/NFSD/SUNRPC: replace generic creds with 'struct cred'.

2018-12-19 13:52:46 -05:00

socklib.c

net: dump more useful information in netdev_rx_csum_fault()

2018-11-15 11:37:04 -08:00

stats.c

sunrpc: whitespace fixes

2018-07-31 12:53:40 -04:00

sunrpc_syms.c

net: Drop pernet_operations::async

2018-03-27 13:18:09 -04:00

sunrpc.h

sunrpc: whitespace fixes

2018-07-31 12:53:40 -04:00

svc_xprt.c

sunrpc: fix debug message in svc_create_xprt()

2018-12-27 21:01:41 -05:00

svc.c

sunrpc: make visible processing error in bc_svc_process()

2018-12-27 21:01:41 -05:00

svcauth_unix.c

SUNRPC: Make server side AUTH_UNIX use lockless lookups

2018-10-29 16:58:04 -04:00

svcauth.c

SUNRPC: Add lockless lookup of the server's auth domain

2018-10-03 11:32:59 -04:00

svcsock.c

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

2019-01-03 12:53:47 -08:00

sysctl.c

Remove 'type' argument from access_ok() function

2019-01-03 18:57:57 -08:00

timer.c

net: cleanup unsigned to unsigned int

2012-04-15 12:44:40 -04:00

xdr.c

SUNRPC: drop pointless static qualifier in xdr_get_next_encode_buffer()

2018-11-08 12:12:23 -05:00

xprt.c

SUNRPC: Address Kerberos performance/behavior regression

2019-01-15 15:36:41 -05:00

xprtmultipath.c

SUNRPC: Fix some kernel doc complaints

2019-01-02 12:05:18 -05:00

xprtsock.c

SUNRPC: Fix TCP receive code on archs with flush_dcache_page()

2019-01-08 12:44:51 -05:00