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SUNRPC: Add the 'softerr' rpc_client flag 

Add the 'softerr' rpc client flag that sets the RPC_TASK_TIMEOUT
flag on all new rpc tasks that are attached to that rpc client.

Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
This commit is contained in:
Trond Myklebust 2019-04-07 13:58:58 -04:00 committed by Anna Schumaker
parent 0729d995f2
commit ae6ec91847
2 changed files with 9 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
include/linux/sunrpc/clnt.h
View File

@ -50,6 +50,7 @@ struct rpc_clnt {
struct rpc_iostats * cl_metrics; /* per-client statistics */
unsigned int cl_softrtry : 1,/* soft timeouts */
cl_softerr : 1,/* Timeouts return errors */
cl_discrtry : 1,/* disconnect before retry */
cl_noretranstimeo: 1,/* No retransmit timeouts */
cl_autobind : 1,/* use getport() */
@ -144,6 +145,7 @@ struct rpc_add_xprt_test {
#define RPC_CLNT_CREATE_INFINITE_SLOTS (1UL << 7)
#define RPC_CLNT_CREATE_NO_IDLE_TIMEOUT (1UL << 8)
#define RPC_CLNT_CREATE_NO_RETRANS_TIMEOUT (1UL << 9)
#define RPC_CLNT_CREATE_SOFTERR (1UL << 10)
struct rpc_clnt *rpc_create(struct rpc_create_args *args);
struct rpc_clnt *rpc_bind_new_program(struct rpc_clnt *,

8
net/sunrpc/clnt.c
View File

@ -484,8 +484,11 @@ static struct rpc_clnt *rpc_create_xprt(struct rpc_create_args *args,
}
clnt->cl_softrtry = 1;
if (args->flags & RPC_CLNT_CREATE_HARDRTRY)
if (args->flags & (RPC_CLNT_CREATE_HARDRTRY|RPC_CLNT_CREATE_SOFTERR)) {
clnt->cl_softrtry = 0;
if (args->flags & RPC_CLNT_CREATE_SOFTERR)
clnt->cl_softerr = 1;
}
if (args->flags & RPC_CLNT_CREATE_AUTOBIND)
clnt->cl_autobind = 1;
@ -623,6 +626,7 @@ static struct rpc_clnt *__rpc_clone_client(struct rpc_create_args *args,
/* Turn off autobind on clones */
new->cl_autobind = 0;
new->cl_softrtry = clnt->cl_softrtry;
new->cl_softerr = clnt->cl_softerr;
new->cl_noretranstimeo = clnt->cl_noretranstimeo;
new->cl_discrtry = clnt->cl_discrtry;
new->cl_chatty = clnt->cl_chatty;
@ -1001,6 +1005,8 @@ void rpc_task_set_client(struct rpc_task *task, struct rpc_clnt *clnt)
atomic_inc(&clnt->cl_count);
if (clnt->cl_softrtry)
task->tk_flags |= RPC_TASK_SOFT;
if (clnt->cl_softerr)
task->tk_flags |= RPC_TASK_TIMEOUT;
if (clnt->cl_noretranstimeo)
task->tk_flags |= RPC_TASK_NO_RETRANS_TIMEOUT;
if (atomic_read(&clnt->cl_swapper))