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linux-sg2042
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SUNRPC: Trace calls to .rpc_call_done 

Introduce a single tracepoint that can replace simple dprintk call
sites in upper layer "rpc_call_done" callbacks. Example:

   kworker/u24:2-1254  [001]   771.026677: rpc_stats_latency:    task:00000001@00000002 xid=0x16a6f3c0 rpcbindv2 GETPORT backlog=446 rtt=101 execute=555
   kworker/u24:2-1254  [001]   771.026677: rpc_task_call_done:   task:00000001@00000002 flags=ASYNC|DYNAMIC|SOFT|SOFTCONN|SENT runstate=RUNNING|ACTIVE status=0 action=rpcb_getport_done
   kworker/u24:2-1254  [001]   771.026678: rpcb_setport:         task:00000001@00000002 status=0 port=20048

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
This commit is contained in:
Chuck Lever 2021-10-16 18:02:57 -04:00 committed by Trond Myklebust
parent d9f877433e
commit b40887e10d
9 changed files with 2 additions and 17 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
fs/lockd/clntproc.c
View File

@ -794,9 +794,6 @@ static void nlmclnt_cancel_callback(struct rpc_task *task, void *data)
goto retry_cancel;
}
dprintk("lockd: cancel status %u (task %u)\n",
status, task->tk_pid);
switch (status) {
case NLM_LCK_GRANTED:
case NLM_LCK_DENIED_GRACE_PERIOD:

2
fs/lockd/svc4proc.c
View File

@ -269,8 +269,6 @@ nlm4svc_proc_granted(struct svc_rqst *rqstp)
*/
static void nlm4svc_callback_exit(struct rpc_task *task, void *data)
{
dprintk("lockd: %5u callback returned %d\n", task->tk_pid,
-task->tk_status);
}
static void nlm4svc_callback_release(void *data)

2
fs/lockd/svcproc.c
View File

@ -301,8 +301,6 @@ nlmsvc_proc_granted(struct svc_rqst *rqstp)
*/
static void nlmsvc_callback_exit(struct rpc_task *task, void *data)
{
dprintk("lockd: %5u callback returned %d\n", task->tk_pid,
-task->tk_status);
}
void nlmsvc_release_call(struct nlm_rqst *call)

2
fs/nfs/filelayout/filelayout.c
View File

@ -293,8 +293,6 @@ static void filelayout_read_call_done(struct rpc_task *task, void *data)
{
struct nfs_pgio_header *hdr = data;
dprintk("--> %s task->tk_status %d\n", __func__, task->tk_status);
if (test_bit(NFS_IOHDR_REDO, &hdr->flags) &&
task->tk_status == 0) {
nfs41_sequence_done(task, &hdr->res.seq_res);

2
fs/nfs/flexfilelayout/flexfilelayout.c
View File

@ -1414,8 +1414,6 @@ static void ff_layout_read_call_done(struct rpc_task *task, void *data)
{
struct nfs_pgio_header *hdr = data;
dprintk("--> %s task->tk_status %d\n", __func__, task->tk_status);
if (test_bit(NFS_IOHDR_REDO, &hdr->flags) &&
task->tk_status == 0) {
nfs4_sequence_done(task, &hdr->res.seq_res);

3
fs/nfs/pagelist.c
View File

@ -864,9 +864,6 @@ static void nfs_pgio_result(struct rpc_task *task, void *calldata)
struct nfs_pgio_header *hdr = calldata;
struct inode *inode = hdr->inode;
dprintk("NFS: %s: %5u, (status %d)\n", __func__,
task->tk_pid, task->tk_status);
if (hdr->rw_ops->rw_done(task, hdr, inode) != 0)
return;
if (task->tk_status < 0)

3
fs/nfs/write.c
View File

@ -1840,9 +1840,6 @@ static void nfs_commit_done(struct rpc_task *task, void *calldata)
{
struct nfs_commit_data *data = calldata;
dprintk("NFS: %5u nfs_commit_done (status %d)\n",
task->tk_pid, task->tk_status);
/* Call the NFS version-specific code */
NFS_PROTO(data->inode)->commit_done(task, data);
trace_nfs_commit_done(task, data);

1
include/trace/events/sunrpc.h
View File

@ -378,6 +378,7 @@ DEFINE_RPC_RUNNING_EVENT(complete);
DEFINE_RPC_RUNNING_EVENT(timeout);
DEFINE_RPC_RUNNING_EVENT(signalled);
DEFINE_RPC_RUNNING_EVENT(end);
DEFINE_RPC_RUNNING_EVENT(call_done);
DECLARE_EVENT_CLASS(rpc_task_queued,

1
net/sunrpc/sched.c
View File

@ -837,6 +837,7 @@ void rpc_exit_task(struct rpc_task *task)
else if (task->tk_client)
rpc_count_iostats(task, task->tk_client->cl_metrics);
if (task->tk_ops->rpc_call_done != NULL) {
trace_rpc_task_call_done(task, task->tk_ops->rpc_call_done);
task->tk_ops->rpc_call_done(task, task->tk_calldata);
if (task->tk_action != NULL) {
/* Always release the RPC slot and buffer memory */