[PATCH 6.1 173/215] NFSD: add CB_RECALL_ANY tracepoints

Greg Kroah-Hartman
2024-03-04T21:52:10Z

From: Dai Ngo <dai.ngo@oracle.com>

[ Upstream commit 638593be55c0b37a1930038460a9918215d5c24b ]

Add tracepoints to trace start and end of CB_RECALL_ANY operation.

Signed-off-by: Dai Ngo <dai.ngo@oracle.com>
[ cel: added show_rca_mask() macro ]
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
fs/nfsd/nfs4state.c | 2 +
fs/nfsd/trace.h | 50 +++++++++++++++++++++++++++++++++++++++++++++++
include/trace/misc/nfs.h | 12 +++++++++++
3 files changed, 64 insertions(+)

--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -2877,6 +2877,7 @@ static int
nfsd4_cb_recall_any_done(struct nfsd4_callback *cb,
struct rpc_task *task)
{
+ trace_nfsd_cb_recall_any_done(cb, task);
switch (task->tk_status) {
case -NFS4ERR_DELAY:
rpc_delay(task, 2 * HZ);
@@ -6254,6 +6255,7 @@ deleg_reaper(struct nfsd_net *nn)
list_del_init(&clp->cl_ra_cblist);
clp->cl_ra->ra_keep = 0;
clp->cl_ra->ra_bmval[0] = BIT(RCA4_TYPE_MASK_RDATA_DLG);
+ trace_nfsd_cb_recall_any(clp->cl_ra);
nfsd4_run_cb(&clp->cl_ra->ra_cb);
}
}
--- a/fs/nfsd/trace.h
+++ b/fs/nfsd/trace.h
@@ -9,9 +9,12 @@
#define _NFSD_TRACE_H

#include <linux/tracepoint.h>
+#include <linux/sunrpc/xprt.h>
+#include <trace/misc/nfs.h>

#include "export.h"
#include "nfsfh.h"
+#include "xdr4.h"

#define NFSD_TRACE_PROC_RES_FIELDS \
__field(unsigned int, netns_ino) \
@@ -1492,6 +1495,32 @@ TRACE_EVENT(nfsd_cb_offload,
__entry->fh_hash, __entry->count, __entry->status)
);

+TRACE_EVENT(nfsd_cb_recall_any,
+ TP_PROTO(
+ const struct nfsd4_cb_recall_any *ra
+ ),
+ TP_ARGS(ra),
+ TP_STRUCT__entry(
+ __field(u32, cl_boot)
+ __field(u32, cl_id)
+ __field(u32, keep)
+ __field(unsigned long, bmval0)
+ __sockaddr(addr, ra->ra_cb.cb_clp->cl_cb_conn.cb_addrlen)
+ ),
+ TP_fast_assign(
+ __entry->cl_boot = ra->ra_cb.cb_clp->cl_clientid.cl_boot;
+ __entry->cl_id = ra->ra_cb.cb_clp->cl_clientid.cl_id;
+ __entry->keep = ra->ra_keep;
+ __entry->bmval0 = ra->ra_bmval[0];
+ __assign_sockaddr(addr, &ra->ra_cb.cb_clp->cl_addr,
+ ra->ra_cb.cb_clp->cl_cb_conn.cb_addrlen);
+ ),
+ TP_printk("addr=%pISpc client %08x:%08x keep=%u bmval0=%s",
+ __get_sockaddr(addr), __entry->cl_boot, __entry->cl_id,
+ __entry->keep, show_rca_mask(__entry->bmval0)
+ )
+);
+
DECLARE_EVENT_CLASS(nfsd_cb_done_class,
TP_PROTO(
const stateid_t *stp,
@@ -1531,6 +1560,27 @@ DEFINE_NFSD_CB_DONE_EVENT(nfsd_cb_notify
DEFINE_NFSD_CB_DONE_EVENT(nfsd_cb_layout_done);
DEFINE_NFSD_CB_DONE_EVENT(nfsd_cb_offload_done);

+TRACE_EVENT(nfsd_cb_recall_any_done,
+ TP_PROTO(
+ const struct nfsd4_callback *cb,
+ const struct rpc_task *task
+ ),
+ TP_ARGS(cb, task),
+ TP_STRUCT__entry(
+ __field(u32, cl_boot)
+ __field(u32, cl_id)
+ __field(int, status)
+ ),
+ TP_fast_assign(
+ __entry->status = task->tk_status;
+ __entry->cl_boot = cb->cb_clp->cl_clientid.cl_boot;
+ __entry->cl_id = cb->cb_clp->cl_clientid.cl_id;
+ ),
+ TP_printk("client %08x:%08x status=%d",
+ __entry->cl_boot, __entry->cl_id, __entry->status
+ )
+);
+
#endif /* _NFSD_TRACE_H */

#undef TRACE_INCLUDE_PATH
--- a/include/trace/misc/nfs.h
+++ b/include/trace/misc/nfs.h
@@ -360,6 +360,18 @@ TRACE_DEFINE_ENUM(IOMODE_ANY);
{ IOMODE_RW, "RW" }, \
{ IOMODE_ANY, "ANY" })

+#define show_rca_mask(x) \
+ __print_flags(x, "|", \
+ { BIT(RCA4_TYPE_MASK_RDATA_DLG), "RDATA_DLG" }, \
+ { BIT(RCA4_TYPE_MASK_WDATA_DLG), "WDATA_DLG" }, \
+ { BIT(RCA4_TYPE_MASK_DIR_DLG), "DIR_DLG" }, \
+ { BIT(RCA4_TYPE_MASK_FILE_LAYOUT), "FILE_LAYOUT" }, \
+ { BIT(RCA4_TYPE_MASK_BLK_LAYOUT), "BLK_LAYOUT" }, \
+ { BIT(RCA4_TYPE_MASK_OBJ_LAYOUT_MIN), "OBJ_LAYOUT_MIN" }, \
+ { BIT(RCA4_TYPE_MASK_OBJ_LAYOUT_MAX), "OBJ_LAYOUT_MAX" }, \
+ { BIT(RCA4_TYPE_MASK_OTHER_LAYOUT_MIN), "OTHER_LAYOUT_MIN" }, \
+ { BIT(RCA4_TYPE_MASK_OTHER_LAYOUT_MAX), "OTHER_LAYOUT_MAX" })
+
#define show_nfs4_seq4_status(x) \
__print_flags(x, "|", \
{ SEQ4_STATUS_CB_PATH_DOWN, "CB_PATH_DOWN" }, \