diff options
Diffstat (limited to '')
| -rw-r--r-- | include/trace/events/fscache.h | 537 |
1 files changed, 537 insertions, 0 deletions
diff --git a/include/trace/events/fscache.h b/include/trace/events/fscache.h new file mode 100644 index 000000000..686cfe997 --- /dev/null +++ b/include/trace/events/fscache.h @@ -0,0 +1,537 @@ +/* FS-Cache tracepoints + * + * Copyright (C) 2016 Red Hat, Inc. All Rights Reserved. + * Written by David Howells (dhowells@redhat.com) + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public Licence + * as published by the Free Software Foundation; either version + * 2 of the Licence, or (at your option) any later version. + */ +#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> |