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edef1297f3
linux/net/sunrpc
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Chuck Lever edef1297f3 SUNRPC: serialize iostats updates 
Occasionally mountstats reports a negative retransmission rate.
Ensure that two RPCs completing concurrently don't confuse the sums
in the transport's op_metrics array.

Since pNFS filelayout can invoke rpc_count_iostats() on another
transport from xprt_release(), we can't rely on simply holding the
transport_lock in xprt_release(). There's nothing for it but hard
serialization. One spin lock per RPC operation should make this as
painless as it can be.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
2014-11-25 16:22:15 -05:00
..
auth_gss sunrpc: fix sleeping under rcu_read_lock in gss_stringify_acceptor 2014-11-13 13:15:49 -05:00
xprtrdma Merge branch 'for-3.18' of git://linux-nfs.org/~bfields/linux 2014-10-08 12:51:44 -04:00
addr.c replace strict_strto calls 2014-07-12 18:45:49 -04:00
auth_generic.c sunrpc/auth: allow lockless (rcu) lookup of credential cache. 2014-08-03 17:14:12 -04:00
auth_null.c sunrpc/auth: allow lockless (rcu) lookup of credential cache. 2014-08-03 17:14:12 -04:00
auth_unix.c SUNRPC refactor rpcauth_checkverf error returns 2013-09-03 15:25:09 -04:00
auth.c SUNRPC: remove all refcounting of groupinfo from rpcauth_lookupcred 2014-08-04 09:22:08 -04:00
backchannel_rqst.c arch: Mass conversion of smp_mb__*() 2014-04-18 14:20:48 +02:00
bc_svc.c
cache.c SUNRPC: Fix printk that is not only for nfsd 2014-05-08 14:59:51 -04:00
clnt.c Merge branch 'bugfixes' into linux-next 2014-09-30 17:21:41 -04:00
Kconfig xprtrdma: add separate Kconfig options for NFSoRDMA client and server support 2014-03-28 18:02:12 -04:00
Makefile xprtrdma: add separate Kconfig options for NFSoRDMA client and server support 2014-03-28 18:02:12 -04:00
netns.h Merge branch 'for-3.14' of git://linux-nfs.org/~bfields/linux 2014-01-30 10:18:43 -08:00
rpc_pipe.c rpc_pipe: Drop memory allocation cast 2014-07-12 18:43:44 -04:00
rpcb_clnt.c SUNRPC: If the rpcbind channel is disconnected, fail the call to unregister 2013-08-07 17:07:18 -04:00
sched.c NFS/SUNRPC: Remove other deadlock-avoidance mechanisms in nfs_release_page() 2014-09-25 08:25:47 -04:00
socklib.c net: Save software checksum complete 2014-06-11 15:46:13 -07:00
stats.c SUNRPC: serialize iostats updates 2014-11-25 16:22:15 -05:00
sunrpc_syms.c sunrpc: create a new dummy pipe for gssd to hold open 2013-12-06 13:06:30 -05:00
sunrpc.h SUNRPC: track whether a request is coming from a loop-back interface. 2014-05-22 15:59:18 -04:00
svc_xprt.c SUNRPC: Fix compile on non-x86 2014-08-28 15:51:35 -04:00
svc.c SUNRPC: get rid of the request wait queue 2014-08-17 12:00:11 -04:00
svcauth_unix.c svcrpc: fix failures to handle -1 uid's 2013-07-08 17:27:23 -04:00
svcauth.c nfsd4: better reservation of head space for krb5 2014-05-30 17:32:17 -04:00
svcsock.c sunrpc: fix byte-swapping of displayed XID 2014-08-28 16:00:07 -04:00
sysctl.c
timer.c
xdr.c SUNRPC: xdr_get_next_encode_buffer should be declared static 2014-07-18 11:35:46 -04:00
xprt.c NFS client updates for Linux 3.17 2014-08-13 18:13:19 -06:00
xprtsock.c NFS/SUNRPC: Remove other deadlock-avoidance mechanisms in nfs_release_page() 2014-09-25 08:25:47 -04:00