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author | David Howells <dhowells@redhat.com> | 2018-04-04 13:41:27 +0100 |
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committer | David Howells <dhowells@redhat.com> | 2018-04-04 13:41:27 +0100 |
commit | 08c2e3d087840cd1e7141b62d92f3dc897147984 (patch) | |
tree | f5b5ad5c4732cc5cc4f5244f8153ad134a71d979 /include/trace | |
parent | a18feb55769b705a44c4107786c4045eae2e87b6 (diff) | |
download | linux-08c2e3d087840cd1e7141b62d92f3dc897147984.tar.bz2 |
fscache: Add more tracepoints
Add more tracepoints to fscache, including:
(*) fscache_page - Tracks netfs pages known to fscache.
(*) fscache_check_page - Tracks the netfs querying whether a page is
pending storage.
(*) fscache_wake_cookie - Tracks cookies being woken up after a page
completes/aborts storage in the cache.
(*) fscache_op - Tracks operations being initialised.
(*) fscache_wrote_page - Tracks return of the backend write_page op.
(*) fscache_gang_lookup - Tracks lookup of pages to be stored in the write
operation.
Signed-off-by: David Howells <dhowells@redhat.com>
Diffstat (limited to 'include/trace')
-rw-r--r-- | include/trace/events/fscache.h | 252 |
1 files changed, 252 insertions, 0 deletions
diff --git a/include/trace/events/fscache.h b/include/trace/events/fscache.h index 99f5355d6281..82c060fe6635 100644 --- a/include/trace/events/fscache.h +++ b/include/trace/events/fscache.h @@ -33,6 +33,53 @@ enum fscache_cookie_trace { 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 /* @@ -47,6 +94,47 @@ enum fscache_cookie_trace { 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. */ @@ -271,6 +359,170 @@ TRACE_EVENT(fscache_osm, __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 */ |