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-rw-r--r--include/trace/events/fscache.h533
1 files changed, 533 insertions, 0 deletions
diff --git a/include/trace/events/fscache.h b/include/trace/events/fscache.h
new file mode 100644
index 000000000..d16fe6ed7
--- /dev/null
+++ b/include/trace/events/fscache.h
@@ -0,0 +1,533 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/* FS-Cache tracepoints
+ *
+ * Copyright (C) 2016 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ */
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM fscache
+
+#if !defined(_TRACE_FSCACHE_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_FSCACHE_H
+
+#include <linux/fscache.h>
+#include <linux/tracepoint.h>
+
+/*
+ * Define enums for tracing information.
+ */
+#ifndef __FSCACHE_DECLARE_TRACE_ENUMS_ONCE_ONLY
+#define __FSCACHE_DECLARE_TRACE_ENUMS_ONCE_ONLY
+
+enum fscache_cookie_trace {
+ fscache_cookie_collision,
+ fscache_cookie_discard,
+ fscache_cookie_get_acquire_parent,
+ fscache_cookie_get_attach_object,
+ fscache_cookie_get_reacquire,
+ fscache_cookie_get_register_netfs,
+ fscache_cookie_put_acquire_nobufs,
+ fscache_cookie_put_dup_netfs,
+ fscache_cookie_put_relinquish,
+ fscache_cookie_put_object,
+ fscache_cookie_put_parent,
+};
+
+enum fscache_page_trace {
+ fscache_page_cached,
+ fscache_page_inval,
+ fscache_page_maybe_release,
+ fscache_page_radix_clear_store,
+ fscache_page_radix_delete,
+ fscache_page_radix_insert,
+ fscache_page_radix_pend2store,
+ fscache_page_radix_set_pend,
+ fscache_page_uncache,
+ fscache_page_write,
+ fscache_page_write_end,
+ fscache_page_write_end_pend,
+ fscache_page_write_end_noc,
+ fscache_page_write_wait,
+ fscache_page_trace__nr
+};
+
+enum fscache_op_trace {
+ fscache_op_cancel,
+ fscache_op_cancel_all,
+ fscache_op_cancelled,
+ fscache_op_completed,
+ fscache_op_enqueue_async,
+ fscache_op_enqueue_mythread,
+ fscache_op_gc,
+ fscache_op_init,
+ fscache_op_put,
+ fscache_op_run,
+ fscache_op_signal,
+ fscache_op_submit,
+ fscache_op_submit_ex,
+ fscache_op_work,
+ fscache_op_trace__nr
+};
+
+enum fscache_page_op_trace {
+ fscache_page_op_alloc_one,
+ fscache_page_op_attr_changed,
+ fscache_page_op_check_consistency,
+ fscache_page_op_invalidate,
+ fscache_page_op_retr_multi,
+ fscache_page_op_retr_one,
+ fscache_page_op_write_one,
+ fscache_page_op_trace__nr
+};
+
+#endif
+
+/*
+ * Declare tracing information enums and their string mappings for display.
+ */
+#define fscache_cookie_traces \
+ EM(fscache_cookie_collision, "*COLLISION*") \
+ EM(fscache_cookie_discard, "DISCARD") \
+ EM(fscache_cookie_get_acquire_parent, "GET prn") \
+ EM(fscache_cookie_get_attach_object, "GET obj") \
+ EM(fscache_cookie_get_reacquire, "GET raq") \
+ EM(fscache_cookie_get_register_netfs, "GET net") \
+ EM(fscache_cookie_put_acquire_nobufs, "PUT nbf") \
+ EM(fscache_cookie_put_dup_netfs, "PUT dnt") \
+ EM(fscache_cookie_put_relinquish, "PUT rlq") \
+ EM(fscache_cookie_put_object, "PUT obj") \
+ E_(fscache_cookie_put_parent, "PUT prn")
+
+#define fscache_page_traces \
+ EM(fscache_page_cached, "Cached ") \
+ EM(fscache_page_inval, "InvalPg") \
+ EM(fscache_page_maybe_release, "MayRels") \
+ EM(fscache_page_uncache, "Uncache") \
+ EM(fscache_page_radix_clear_store, "RxCStr ") \
+ EM(fscache_page_radix_delete, "RxDel ") \
+ EM(fscache_page_radix_insert, "RxIns ") \
+ EM(fscache_page_radix_pend2store, "RxP2S ") \
+ EM(fscache_page_radix_set_pend, "RxSPend ") \
+ EM(fscache_page_write, "WritePg") \
+ EM(fscache_page_write_end, "EndPgWr") \
+ EM(fscache_page_write_end_pend, "EndPgWP") \
+ EM(fscache_page_write_end_noc, "EndPgNC") \
+ E_(fscache_page_write_wait, "WtOnWrt")
+
+#define fscache_op_traces \
+ EM(fscache_op_cancel, "Cancel1") \
+ EM(fscache_op_cancel_all, "CancelA") \
+ EM(fscache_op_cancelled, "Canclld") \
+ EM(fscache_op_completed, "Complet") \
+ EM(fscache_op_enqueue_async, "EnqAsyn") \
+ EM(fscache_op_enqueue_mythread, "EnqMyTh") \
+ EM(fscache_op_gc, "GC ") \
+ EM(fscache_op_init, "Init ") \
+ EM(fscache_op_put, "Put ") \
+ EM(fscache_op_run, "Run ") \
+ EM(fscache_op_signal, "Signal ") \
+ EM(fscache_op_submit, "Submit ") \
+ EM(fscache_op_submit_ex, "SubmitX") \
+ E_(fscache_op_work, "Work ")
+
+#define fscache_page_op_traces \
+ EM(fscache_page_op_alloc_one, "Alloc1 ") \
+ EM(fscache_page_op_attr_changed, "AttrChg") \
+ EM(fscache_page_op_check_consistency, "CheckCn") \
+ EM(fscache_page_op_invalidate, "Inval ") \
+ EM(fscache_page_op_retr_multi, "RetrMul") \
+ EM(fscache_page_op_retr_one, "Retr1 ") \
+ E_(fscache_page_op_write_one, "Write1 ")
+
+/*
+ * Export enum symbols via userspace.
+ */
+#undef EM
+#undef E_
+#define EM(a, b) TRACE_DEFINE_ENUM(a);
+#define E_(a, b) TRACE_DEFINE_ENUM(a);
+
+fscache_cookie_traces;
+
+/*
+ * Now redefine the EM() and E_() macros to map the enums to the strings that
+ * will be printed in the output.
+ */
+#undef EM
+#undef E_
+#define EM(a, b) { a, b },
+#define E_(a, b) { a, b }
+
+
+TRACE_EVENT(fscache_cookie,
+ TP_PROTO(struct fscache_cookie *cookie,
+ enum fscache_cookie_trace where,
+ int usage),
+
+ TP_ARGS(cookie, where, usage),
+
+ TP_STRUCT__entry(
+ __field(struct fscache_cookie *, cookie )
+ __field(struct fscache_cookie *, parent )
+ __field(enum fscache_cookie_trace, where )
+ __field(int, usage )
+ __field(int, n_children )
+ __field(int, n_active )
+ __field(u8, flags )
+ ),
+
+ TP_fast_assign(
+ __entry->cookie = cookie;
+ __entry->parent = cookie->parent;
+ __entry->where = where;
+ __entry->usage = usage;
+ __entry->n_children = atomic_read(&cookie->n_children);
+ __entry->n_active = atomic_read(&cookie->n_active);
+ __entry->flags = cookie->flags;
+ ),
+
+ TP_printk("%s c=%p u=%d p=%p Nc=%d Na=%d f=%02x",
+ __print_symbolic(__entry->where, fscache_cookie_traces),
+ __entry->cookie, __entry->usage,
+ __entry->parent, __entry->n_children, __entry->n_active,
+ __entry->flags)
+ );
+
+TRACE_EVENT(fscache_netfs,
+ TP_PROTO(struct fscache_netfs *netfs),
+
+ TP_ARGS(netfs),
+
+ TP_STRUCT__entry(
+ __field(struct fscache_cookie *, cookie )
+ __array(char, name, 8 )
+ ),
+
+ TP_fast_assign(
+ __entry->cookie = netfs->primary_index;
+ strncpy(__entry->name, netfs->name, 8);
+ __entry->name[7] = 0;
+ ),
+
+ TP_printk("c=%p n=%s",
+ __entry->cookie, __entry->name)
+ );
+
+TRACE_EVENT(fscache_acquire,
+ TP_PROTO(struct fscache_cookie *cookie),
+
+ TP_ARGS(cookie),
+
+ TP_STRUCT__entry(
+ __field(struct fscache_cookie *, cookie )
+ __field(struct fscache_cookie *, parent )
+ __array(char, name, 8 )
+ __field(int, p_usage )
+ __field(int, p_n_children )
+ __field(u8, p_flags )
+ ),
+
+ TP_fast_assign(
+ __entry->cookie = cookie;
+ __entry->parent = cookie->parent;
+ __entry->p_usage = atomic_read(&cookie->parent->usage);
+ __entry->p_n_children = atomic_read(&cookie->parent->n_children);
+ __entry->p_flags = cookie->parent->flags;
+ memcpy(__entry->name, cookie->def->name, 8);
+ __entry->name[7] = 0;
+ ),
+
+ TP_printk("c=%p p=%p pu=%d pc=%d pf=%02x n=%s",
+ __entry->cookie, __entry->parent, __entry->p_usage,
+ __entry->p_n_children, __entry->p_flags, __entry->name)
+ );
+
+TRACE_EVENT(fscache_relinquish,
+ TP_PROTO(struct fscache_cookie *cookie, bool retire),
+
+ TP_ARGS(cookie, retire),
+
+ TP_STRUCT__entry(
+ __field(struct fscache_cookie *, cookie )
+ __field(struct fscache_cookie *, parent )
+ __field(int, usage )
+ __field(int, n_children )
+ __field(int, n_active )
+ __field(u8, flags )
+ __field(bool, retire )
+ ),
+
+ TP_fast_assign(
+ __entry->cookie = cookie;
+ __entry->parent = cookie->parent;
+ __entry->usage = atomic_read(&cookie->usage);
+ __entry->n_children = atomic_read(&cookie->n_children);
+ __entry->n_active = atomic_read(&cookie->n_active);
+ __entry->flags = cookie->flags;
+ __entry->retire = retire;
+ ),
+
+ TP_printk("c=%p u=%d p=%p Nc=%d Na=%d f=%02x r=%u",
+ __entry->cookie, __entry->usage,
+ __entry->parent, __entry->n_children, __entry->n_active,
+ __entry->flags, __entry->retire)
+ );
+
+TRACE_EVENT(fscache_enable,
+ TP_PROTO(struct fscache_cookie *cookie),
+
+ TP_ARGS(cookie),
+
+ TP_STRUCT__entry(
+ __field(struct fscache_cookie *, cookie )
+ __field(int, usage )
+ __field(int, n_children )
+ __field(int, n_active )
+ __field(u8, flags )
+ ),
+
+ TP_fast_assign(
+ __entry->cookie = cookie;
+ __entry->usage = atomic_read(&cookie->usage);
+ __entry->n_children = atomic_read(&cookie->n_children);
+ __entry->n_active = atomic_read(&cookie->n_active);
+ __entry->flags = cookie->flags;
+ ),
+
+ TP_printk("c=%p u=%d Nc=%d Na=%d f=%02x",
+ __entry->cookie, __entry->usage,
+ __entry->n_children, __entry->n_active, __entry->flags)
+ );
+
+TRACE_EVENT(fscache_disable,
+ TP_PROTO(struct fscache_cookie *cookie),
+
+ TP_ARGS(cookie),
+
+ TP_STRUCT__entry(
+ __field(struct fscache_cookie *, cookie )
+ __field(int, usage )
+ __field(int, n_children )
+ __field(int, n_active )
+ __field(u8, flags )
+ ),
+
+ TP_fast_assign(
+ __entry->cookie = cookie;
+ __entry->usage = atomic_read(&cookie->usage);
+ __entry->n_children = atomic_read(&cookie->n_children);
+ __entry->n_active = atomic_read(&cookie->n_active);
+ __entry->flags = cookie->flags;
+ ),
+
+ TP_printk("c=%p u=%d Nc=%d Na=%d f=%02x",
+ __entry->cookie, __entry->usage,
+ __entry->n_children, __entry->n_active, __entry->flags)
+ );
+
+TRACE_EVENT(fscache_osm,
+ TP_PROTO(struct fscache_object *object,
+ const struct fscache_state *state,
+ bool wait, bool oob, s8 event_num),
+
+ TP_ARGS(object, state, wait, oob, event_num),
+
+ TP_STRUCT__entry(
+ __field(struct fscache_cookie *, cookie )
+ __field(struct fscache_object *, object )
+ __array(char, state, 8 )
+ __field(bool, wait )
+ __field(bool, oob )
+ __field(s8, event_num )
+ ),
+
+ TP_fast_assign(
+ __entry->cookie = object->cookie;
+ __entry->object = object;
+ __entry->wait = wait;
+ __entry->oob = oob;
+ __entry->event_num = event_num;
+ memcpy(__entry->state, state->short_name, 8);
+ ),
+
+ TP_printk("c=%p o=%p %s %s%sev=%d",
+ __entry->cookie,
+ __entry->object,
+ __entry->state,
+ __print_symbolic(__entry->wait,
+ { true, "WAIT" },
+ { false, "WORK" }),
+ __print_symbolic(__entry->oob,
+ { true, " OOB " },
+ { false, " " }),
+ __entry->event_num)
+ );
+
+TRACE_EVENT(fscache_page,
+ TP_PROTO(struct fscache_cookie *cookie, struct page *page,
+ enum fscache_page_trace why),
+
+ TP_ARGS(cookie, page, why),
+
+ TP_STRUCT__entry(
+ __field(struct fscache_cookie *, cookie )
+ __field(pgoff_t, page )
+ __field(enum fscache_page_trace, why )
+ ),
+
+ TP_fast_assign(
+ __entry->cookie = cookie;
+ __entry->page = page->index;
+ __entry->why = why;
+ ),
+
+ TP_printk("c=%p %s pg=%lx",
+ __entry->cookie,
+ __print_symbolic(__entry->why, fscache_page_traces),
+ __entry->page)
+ );
+
+TRACE_EVENT(fscache_check_page,
+ TP_PROTO(struct fscache_cookie *cookie, struct page *page,
+ void *val, int n),
+
+ TP_ARGS(cookie, page, val, n),
+
+ TP_STRUCT__entry(
+ __field(struct fscache_cookie *, cookie )
+ __field(void *, page )
+ __field(void *, val )
+ __field(int, n )
+ ),
+
+ TP_fast_assign(
+ __entry->cookie = cookie;
+ __entry->page = page;
+ __entry->val = val;
+ __entry->n = n;
+ ),
+
+ TP_printk("c=%p pg=%p val=%p n=%d",
+ __entry->cookie, __entry->page, __entry->val, __entry->n)
+ );
+
+TRACE_EVENT(fscache_wake_cookie,
+ TP_PROTO(struct fscache_cookie *cookie),
+
+ TP_ARGS(cookie),
+
+ TP_STRUCT__entry(
+ __field(struct fscache_cookie *, cookie )
+ ),
+
+ TP_fast_assign(
+ __entry->cookie = cookie;
+ ),
+
+ TP_printk("c=%p", __entry->cookie)
+ );
+
+TRACE_EVENT(fscache_op,
+ TP_PROTO(struct fscache_cookie *cookie, struct fscache_operation *op,
+ enum fscache_op_trace why),
+
+ TP_ARGS(cookie, op, why),
+
+ TP_STRUCT__entry(
+ __field(struct fscache_cookie *, cookie )
+ __field(struct fscache_operation *, op )
+ __field(enum fscache_op_trace, why )
+ ),
+
+ TP_fast_assign(
+ __entry->cookie = cookie;
+ __entry->op = op;
+ __entry->why = why;
+ ),
+
+ TP_printk("c=%p op=%p %s",
+ __entry->cookie, __entry->op,
+ __print_symbolic(__entry->why, fscache_op_traces))
+ );
+
+TRACE_EVENT(fscache_page_op,
+ TP_PROTO(struct fscache_cookie *cookie, struct page *page,
+ struct fscache_operation *op, enum fscache_page_op_trace what),
+
+ TP_ARGS(cookie, page, op, what),
+
+ TP_STRUCT__entry(
+ __field(struct fscache_cookie *, cookie )
+ __field(pgoff_t, page )
+ __field(struct fscache_operation *, op )
+ __field(enum fscache_page_op_trace, what )
+ ),
+
+ TP_fast_assign(
+ __entry->cookie = cookie;
+ __entry->page = page ? page->index : 0;
+ __entry->op = op;
+ __entry->what = what;
+ ),
+
+ TP_printk("c=%p %s pg=%lx op=%p",
+ __entry->cookie,
+ __print_symbolic(__entry->what, fscache_page_op_traces),
+ __entry->page, __entry->op)
+ );
+
+TRACE_EVENT(fscache_wrote_page,
+ TP_PROTO(struct fscache_cookie *cookie, struct page *page,
+ struct fscache_operation *op, int ret),
+
+ TP_ARGS(cookie, page, op, ret),
+
+ TP_STRUCT__entry(
+ __field(struct fscache_cookie *, cookie )
+ __field(pgoff_t, page )
+ __field(struct fscache_operation *, op )
+ __field(int, ret )
+ ),
+
+ TP_fast_assign(
+ __entry->cookie = cookie;
+ __entry->page = page->index;
+ __entry->op = op;
+ __entry->ret = ret;
+ ),
+
+ TP_printk("c=%p pg=%lx op=%p ret=%d",
+ __entry->cookie, __entry->page, __entry->op, __entry->ret)
+ );
+
+TRACE_EVENT(fscache_gang_lookup,
+ TP_PROTO(struct fscache_cookie *cookie, struct fscache_operation *op,
+ void **results, int n, pgoff_t store_limit),
+
+ TP_ARGS(cookie, op, results, n, store_limit),
+
+ TP_STRUCT__entry(
+ __field(struct fscache_cookie *, cookie )
+ __field(struct fscache_operation *, op )
+ __field(pgoff_t, results0 )
+ __field(int, n )
+ __field(pgoff_t, store_limit )
+ ),
+
+ TP_fast_assign(
+ __entry->cookie = cookie;
+ __entry->op = op;
+ __entry->results0 = results[0] ? ((struct page *)results[0])->index : (pgoff_t)-1;
+ __entry->n = n;
+ __entry->store_limit = store_limit;
+ ),
+
+ TP_printk("c=%p op=%p r0=%lx n=%d sl=%lx",
+ __entry->cookie, __entry->op, __entry->results0, __entry->n,
+ __entry->store_limit)
+ );
+
+#endif /* _TRACE_FSCACHE_H */
+
+/* This part must be outside protection */
+#include <trace/define_trace.h>