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rxrpc, afs: Use debug_ids rather than pointers in traces

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In rxrpc and afs, use the debug_ids that are monotonically allocated to
various objects as they're allocated rather than pointers as kernel
pointers are now hashed making them less useful.  Further, the debug ids
aren't reused anywhere nearly as quickly.

In addition, allow kernel services that use rxrpc, such as afs, to take
numbers from the rxrpc counter, assign them to their own call struct and
pass them in to rxrpc for both client and service calls so that the trace
lines for each will have the same ID tag.

Signed-off-by: David Howells <dhowells@redhat.com>
This commit is contained in:
David Howells
2018-03-27 23:03:00 +01:00
parent 827efed6a6
commit a25e21f0bc
12 changed files with 163 additions and 145 deletions
Download Patch File Download Diff File Expand all files Collapse all files

69
include/trace/events/afs.h
View File

@@ -133,8 +133,7 @@ TRACE_EVENT(afs_recv_data,
TP_ARGS(call, count, offset, want_more, ret),
TP_STRUCT__entry(
__field(struct rxrpc_call *, rxcall )
__field(struct afs_call *, call )
__field(unsigned int, call )
__field(enum afs_call_state, state )
__field(unsigned int, count )
__field(unsigned int, offset )
@@ -144,8 +143,7 @@ TRACE_EVENT(afs_recv_data,
),
TP_fast_assign(
__entry->rxcall = call->rxcall;
__entry->call = call;
__entry->call = call->debug_id;
__entry->state = call->state;
__entry->unmarshall = call->unmarshall;
__entry->count = count;
@@ -154,8 +152,7 @@ TRACE_EVENT(afs_recv_data,
__entry->ret = ret;
),
TP_printk("c=%p ac=%p s=%u u=%u %u/%u wm=%u ret=%d",
__entry->rxcall,
TP_printk("c=%08x s=%u u=%u %u/%u wm=%u ret=%d",
__entry->call,
__entry->state, __entry->unmarshall,
__entry->offset, __entry->count,
@@ -168,21 +165,18 @@ TRACE_EVENT(afs_notify_call,
TP_ARGS(rxcall, call),
TP_STRUCT__entry(
__field(struct rxrpc_call *, rxcall )
__field(struct afs_call *, call )
__field(unsigned int, call )
__field(enum afs_call_state, state )
__field(unsigned short, unmarshall )
),
TP_fast_assign(
__entry->rxcall = rxcall;
__entry->call = call;
__entry->call = call->debug_id;
__entry->state = call->state;
__entry->unmarshall = call->unmarshall;
),
TP_printk("c=%p ac=%p s=%u u=%u",
__entry->rxcall,
TP_printk("c=%08x s=%u u=%u",
__entry->call,
__entry->state, __entry->unmarshall)
);
@@ -193,21 +187,18 @@ TRACE_EVENT(afs_cb_call,
TP_ARGS(call),
TP_STRUCT__entry(
__field(struct rxrpc_call *, rxcall )
__field(struct afs_call *, call )
__field(unsigned int, call )
__field(const char *, name )
__field(u32, op )
),
TP_fast_assign(
__entry->rxcall = call->rxcall;
__entry->call = call;
__entry->call = call->debug_id;
__entry->name = call->type->name;
__entry->op = call->operation_ID;
),
TP_printk("c=%p ac=%p %s o=%u",
__entry->rxcall,
TP_printk("c=%08x %s o=%u",
__entry->call,
__entry->name,
__entry->op)
@@ -220,7 +211,7 @@ TRACE_EVENT(afs_call,
TP_ARGS(call, op, usage, outstanding, where),
TP_STRUCT__entry(
__field(struct afs_call *, call )
__field(unsigned int, call )
__field(int, op )
__field(int, usage )
__field(int, outstanding )
@@ -228,14 +219,14 @@ TRACE_EVENT(afs_call,
),
TP_fast_assign(
__entry->call = call;
__entry->call = call->debug_id;
__entry->op = op;
__entry->usage = usage;
__entry->outstanding = outstanding;
__entry->where = where;
),
TP_printk("c=%p %s u=%d o=%d sp=%pSR",
TP_printk("c=%08x %s u=%d o=%d sp=%pSR",
__entry->call,
__print_symbolic(__entry->op, afs_call_traces),
__entry->usage,
@@ -249,13 +240,13 @@ TRACE_EVENT(afs_make_fs_call,
TP_ARGS(call, fid),
TP_STRUCT__entry(
__field(struct afs_call *, call )
__field(unsigned int, call )
__field(enum afs_fs_operation, op )
__field_struct(struct afs_fid, fid )
),
TP_fast_assign(
__entry->call = call;
__entry->call = call->debug_id;
__entry->op = call->operation_ID;
if (fid) {
__entry->fid = *fid;
@@ -266,7 +257,7 @@ TRACE_EVENT(afs_make_fs_call,
}
),
TP_printk("c=%p %06x:%06x:%06x %s",
TP_printk("c=%08x %06x:%06x:%06x %s",
__entry->call,
__entry->fid.vid,
__entry->fid.vnode,
@@ -280,16 +271,16 @@ TRACE_EVENT(afs_make_vl_call,
TP_ARGS(call),
TP_STRUCT__entry(
__field(struct afs_call *, call )
__field(unsigned int, call )
__field(enum afs_vl_operation, op )
),
TP_fast_assign(
__entry->call = call;
__entry->call = call->debug_id;
__entry->op = call->operation_ID;
),
TP_printk("c=%p %s",
TP_printk("c=%08x %s",
__entry->call,
__print_symbolic(__entry->op, afs_vl_operations))
);
@@ -300,20 +291,20 @@ TRACE_EVENT(afs_call_done,
TP_ARGS(call),
TP_STRUCT__entry(
__field(struct afs_call *, call )
__field(unsigned int, call )
__field(struct rxrpc_call *, rx_call )
__field(int, ret )
__field(u32, abort_code )
),
TP_fast_assign(
__entry->call = call;
__entry->call = call->debug_id;
__entry->rx_call = call->rxcall;
__entry->ret = call->error;
__entry->abort_code = call->abort_code;
),
TP_printk(" c=%p ret=%d ab=%d [%p]",
TP_printk(" c=%08x ret=%d ab=%d [%p]",
__entry->call,
__entry->ret,
__entry->abort_code,
@@ -327,7 +318,7 @@ TRACE_EVENT(afs_send_pages,
TP_ARGS(call, msg, first, last, offset),
TP_STRUCT__entry(
__field(struct afs_call *, call )
__field(unsigned int, call )
__field(pgoff_t, first )
__field(pgoff_t, last )
__field(unsigned int, nr )
@@ -337,7 +328,7 @@ TRACE_EVENT(afs_send_pages,
),
TP_fast_assign(
__entry->call = call;
__entry->call = call->debug_id;
__entry->first = first;
__entry->last = last;
__entry->nr = msg->msg_iter.nr_segs;
@@ -346,7 +337,7 @@ TRACE_EVENT(afs_send_pages,
__entry->flags = msg->msg_flags;
),
TP_printk(" c=%p %lx-%lx-%lx b=%x o=%x f=%x",
TP_printk(" c=%08x %lx-%lx-%lx b=%x o=%x f=%x",
__entry->call,
__entry->first, __entry->first + __entry->nr - 1, __entry->last,
__entry->bytes, __entry->offset,
@@ -360,7 +351,7 @@ TRACE_EVENT(afs_sent_pages,
TP_ARGS(call, first, last, cursor, ret),
TP_STRUCT__entry(
__field(struct afs_call *, call )
__field(unsigned int, call )
__field(pgoff_t, first )
__field(pgoff_t, last )
__field(pgoff_t, cursor )
@@ -368,14 +359,14 @@ TRACE_EVENT(afs_sent_pages,
),
TP_fast_assign(
__entry->call = call;
__entry->call = call->debug_id;
__entry->first = first;
__entry->last = last;
__entry->cursor = cursor;
__entry->ret = ret;
),
TP_printk(" c=%p %lx-%lx c=%lx r=%d",
TP_printk(" c=%08x %lx-%lx c=%lx r=%d",
__entry->call,
__entry->first, __entry->last,
__entry->cursor, __entry->ret)
@@ -450,7 +441,7 @@ TRACE_EVENT(afs_call_state,
TP_ARGS(call, from, to, ret, remote_abort),
TP_STRUCT__entry(
__field(struct afs_call *, call )
__field(unsigned int, call )
__field(enum afs_call_state, from )
__field(enum afs_call_state, to )
__field(int, ret )
@@ -458,14 +449,14 @@ TRACE_EVENT(afs_call_state,
),
TP_fast_assign(
__entry->call = call;
__entry->call = call->debug_id;
__entry->from = from;
__entry->to = to;
__entry->ret = ret;
__entry->abort = remote_abort;
),
TP_printk("c=%p %u->%u r=%d ab=%d",
TP_printk("c=%08x %u->%u r=%d ab=%d",
__entry->call,
__entry->from, __entry->to,
__entry->ret, __entry->abort)