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NFSD: Wrap async copy operations with trace points

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Add an nfsd_copy_async_done to record the timestamp, the final
status code, and the callback stateid of an async copy.

Rename the nfsd_copy_do_async tracepoint to match that naming
convention to make it easier to enable both of these with a
single glob.

Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
This commit is contained in:
Chuck Lever 2024-08-28 13:40:09 -04:00
parent d3c430aa97
commit 0505de9615
2 changed files with 72 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
fs/nfsd/nfs4proc.c
View File

@ -1760,7 +1760,7 @@ static int nfsd4_do_async_copy(void *data)
{
struct nfsd4_copy *copy = (struct nfsd4_copy *)data;
trace_nfsd_copy_do_async(copy);
trace_nfsd_copy_async(copy);
if (nfsd4_ssc_is_inter(copy)) {
struct file *filp;
@ -1787,6 +1787,7 @@ static int nfsd4_do_async_copy(void *data)
do_callback:
set_bit(NFSD4_COPY_F_COMPLETED, &copy->cp_flags);
trace_nfsd_copy_async_done(copy);
nfsd4_send_cb_offload(copy);
cleanup_async_copy(copy);
return 0;

71
fs/nfsd/trace.h
View File

@ -2203,7 +2203,7 @@ DEFINE_EVENT(nfsd_copy_class, nfsd_copy_##name, \
DEFINE_COPY_EVENT(inter);
DEFINE_COPY_EVENT(intra);
DEFINE_COPY_EVENT(do_async);
DEFINE_COPY_EVENT(async);
TRACE_EVENT(nfsd_copy_done,
TP_PROTO(
@ -2229,6 +2229,75 @@ TRACE_EVENT(nfsd_copy_done,
)
);
TRACE_EVENT(nfsd_copy_async_done,
TP_PROTO(
const struct nfsd4_copy *copy
),
TP_ARGS(copy),
TP_STRUCT__entry(
__field(int, status)
__field(bool, intra)
__field(bool, async)
__field(u32, src_cl_boot)
__field(u32, src_cl_id)
__field(u32, src_so_id)
__field(u32, src_si_generation)
__field(u32, dst_cl_boot)
__field(u32, dst_cl_id)
__field(u32, dst_so_id)
__field(u32, dst_si_generation)
__field(u32, cb_cl_boot)
__field(u32, cb_cl_id)
__field(u32, cb_so_id)
__field(u32, cb_si_generation)
__field(u64, src_cp_pos)
__field(u64, dst_cp_pos)
__field(u64, cp_count)
__sockaddr(addr, sizeof(struct sockaddr_in6))
),
TP_fast_assign(
const stateid_t *src_stp = &copy->cp_src_stateid;
const stateid_t *dst_stp = &copy->cp_dst_stateid;
const stateid_t *cb_stp = &copy->cp_res.cb_stateid;
__entry->status = be32_to_cpu(copy->nfserr);
__entry->intra = test_bit(NFSD4_COPY_F_INTRA, &copy->cp_flags);
__entry->async = !test_bit(NFSD4_COPY_F_SYNCHRONOUS, &copy->cp_flags);
__entry->src_cl_boot = src_stp->si_opaque.so_clid.cl_boot;
__entry->src_cl_id = src_stp->si_opaque.so_clid.cl_id;
__entry->src_so_id = src_stp->si_opaque.so_id;
__entry->src_si_generation = src_stp->si_generation;
__entry->dst_cl_boot = dst_stp->si_opaque.so_clid.cl_boot;
__entry->dst_cl_id = dst_stp->si_opaque.so_clid.cl_id;
__entry->dst_so_id = dst_stp->si_opaque.so_id;
__entry->dst_si_generation = dst_stp->si_generation;
__entry->cb_cl_boot = cb_stp->si_opaque.so_clid.cl_boot;
__entry->cb_cl_id = cb_stp->si_opaque.so_clid.cl_id;
__entry->cb_so_id = cb_stp->si_opaque.so_id;
__entry->cb_si_generation = cb_stp->si_generation;
__entry->src_cp_pos = copy->cp_src_pos;
__entry->dst_cp_pos = copy->cp_dst_pos;
__entry->cp_count = copy->cp_count;
__assign_sockaddr(addr, &copy->cp_clp->cl_addr,
sizeof(struct sockaddr_in6));
),
TP_printk("client=%pISpc status=%d intra=%d async=%d "
"src_client %08x:%08x src_stateid %08x:%08x "
"dst_client %08x:%08x dst_stateid %08x:%08x "
"cb_client %08x:%08x cb_stateid %08x:%08x "
"cp_src_pos=%llu cp_dst_pos=%llu cp_count=%llu",
__get_sockaddr(addr),
__entry->status, __entry->intra, __entry->async,
__entry->src_cl_boot, __entry->src_cl_id,
__entry->src_so_id, __entry->src_si_generation,
__entry->dst_cl_boot, __entry->dst_cl_id,
__entry->dst_so_id, __entry->dst_si_generation,
__entry->cb_cl_boot, __entry->cb_cl_id,
__entry->cb_so_id, __entry->cb_si_generation,
__entry->src_cp_pos, __entry->dst_cp_pos, __entry->cp_count
)
);
#endif /* _NFSD_TRACE_H */
#undef TRACE_INCLUDE_PATH