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f279cd008f
linux/net/sunrpc
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Jason Baron f279cd008f rpc: return sent and err from xs_sendpages() 
If an error is returned after the first bits of a packet have already been
successfully queued, xs_sendpages() will return a positive 'int' value
indicating success. Callers seem to treat this as -EAGAIN.

However, there are cases where its not a question of waiting for the write
queue to drain. For example, when there is an iptables rule dropping packets
to the destination, the lower level code can return -EPERM only after parts
of the packet have been successfully queued. In this case, we can end up
continuously retrying resulting in a kernel softlockup.

This patch is intended to make no changes in behavior but is in preparation for
subsequent patches that can make decisions based on both on the number of bytes
sent by xs_sendpages() and any errors that may have be returned.

Signed-off-by: Jason Baron <jbaron@akamai.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
2014-09-24 23:13:37 -04:00
..
auth_gss NFS client updates for Linux 3.17 2014-08-13 18:13:19 -06:00
xprtrdma NFS client updates for Linux 3.17 2014-08-13 18:13:19 -06:00
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 SUNRPC: remove BUG_ON from bc_send 2012-11-04 14:43:41 -05:00
cache.c SUNRPC: Fix printk that is not only for nfsd 2014-05-08 14:59:51 -04:00
clnt.c SUNRPC: Handle EPIPE in xprt_connect_status 2014-07-03 00:11:35 -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 sched: Allow wait_on_bit_action() functions to support a timeout 2014-07-16 15:10:41 +02:00
socklib.c net: Save software checksum complete 2014-06-11 15:46:13 -07:00
stats.c SUNRPC: Deprecate rpc_client->cl_protname 2013-08-30 09:19:34 -04:00
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: Allow svc_reserve() to notify TCP socket that space has been freed 2014-07-29 16:10:20 -04:00
svc.c SUNRPC/NFSD: Change to type of bool for rq_usedeferral and rq_splice_ok 2014-06-23 11:31:36 -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: Allow svc_reserve() to notify TCP socket that space has been freed 2014-07-29 16:10:20 -04:00
sysctl.c net: Convert uses of typedef ctl_table to struct ctl_table 2013-06-13 02:36:09 -07:00
timer.c net: cleanup unsigned to unsigned int 2012-04-15 12:44:40 -04:00
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 rpc: return sent and err from xs_sendpages() 2014-09-24 23:13:37 -04:00