From 034dd340b08be1f2f0477ad16131d609f9dbd53c Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sun, 30 Aug 2026 09:22:00 -0700 Subject: Merge tag 'trace-v7.3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace Pull tracing fixes from Steven Rostedt: - Fix error output of boot instance creation failure Currently if a boot instance creation fails, instead of printing out the name of the instance that failed, it prints "(null)". That is because it prints "cur_str" that had already been processed by strsep(). Print the saved name instead. While at it, print the error code of the failure. - Fix use-after-free for same named historgrams Histograms can be named so that they can be used in multiple events. But if the named histogram has a variable attached, the second event that uses the named histogram which duplicates it and needs to free the original after duplication leaves the old variable in place and still visible. If another histogram uses than variable, it will use the stale one which will try to reference the freed duplicate histogram and crash the kernel. Free the duplicate variables along with the duplicated histogram data. - Check return value of kthread_run() in event self test The events self tests uses a kthread for testing but does not check if it succeeded in creating a kthread. If the kthread creation were to fail, the code will still try to call kthread_stop() on the error returned. - Fix race between reading trace_pipe and updating subbuffer size If a user is reading the trace_pipe file at the same time they update the ring buffer sub-buffer size, can cause the trace_pipe read to read stale data. Add trace_access_lock() around updating the ring buffer sub-buffer size. - Fix eventfs_inode on failure path in creation of the events directory In the creation of the "events" directory, if after allocating the eventfs_inode a failure is detected, it calls cleanup_ei() which calls free_ei(). The free_ei() will test if eventfs_inode being freed has no children. It is a bug if it does. But on the failure case of the creation of the "events" directory, the children lists have not yet been initialized and the free will trigger a warning because list_empty() on an uninitialized list returns false. Move the initialization into init_ei() where it makes more sense and makes sure that a created eventfs_inode has its lists initialized upon creation. - Check return value of kthread_run() in ftrace direct sample code The sample code that shows how to use the ftrace direct calls does not test the return of kthread_run() to see if it succeeds. Return a failure if the kthread_run() doesn't succeed. - Clear user events state on fork in case of alloc failure On fork, the child gets a pointer to the parent's user events state. It makes a copy of it then updates the child's pointer to it. But if the allocation fails, the duplication function leaves the child with a pointer to its parent's descriptor. When the child cleans up its data, it will free the parent's descriptor while the parent is still using it. In the duplication function, set the child's user_event_mm to NULL before testing if the allocation succeeded, and when it exits it will not free the parent's descriptor. - Fix retry exhaustion in simple ring buffer reader swap simple_ring_buffer_swap_reader_page() starts with retry set to 8 and post-decrements it only after a failed link replacement. On the final attempt, a successful replacement leaves retry at zero, while a failed replacement leaves it at -1. But the check for success expects the retry value to be non-zero and exits with an error on zero. This is the opposite result. Fix it. - Fail nicely when the remote swap_reader_page() returns an error Currently, if the swap_reader_page() of a remote buffer fails, it triggers a WARN_ON_ONCE() and continues normally. Instead, have it exit with an error and a pr_warn() print instead of a full WARNING. * tag 'trace-v7.3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace: ring-buffer: Stop remote reader update when page swap fails tracing: Fix retry exhaustion in simple ring buffer reader swap tracing/user_events: Clear copied tracing state before fork duplication samples/ftrace: Fix kthread_stop() on ERR_PTR in ftrace-direct-multi-modify samples/ftrace: Fix kthread_stop() on ERR_PTR in ftrace-direct-modify eventfs: Initialize ei->children and ei->list in init_ei() tracing: Fix use-after-free in trace_pipe read on sub-buffer order change tracing: Fix crash passing ERR_PTR to kthread_stop() tracing: Fix use-after-free with same-name named triggers tracing: Fix logged instance name on creation failure --- include/trace/events/netfs.h | 794 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 794 insertions(+) create mode 100644 include/trace/events/netfs.h (limited to 'include/trace/events/netfs.h') diff --git a/include/trace/events/netfs.h b/include/trace/events/netfs.h new file mode 100644 index 000000000..082cb03c6 --- /dev/null +++ b/include/trace/events/netfs.h @@ -0,0 +1,794 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* Network filesystem support module tracepoints + * + * Copyright (C) 2021 Red Hat, Inc. All Rights Reserved. + * Written by David Howells (dhowells@redhat.com) + */ +#undef TRACE_SYSTEM +#define TRACE_SYSTEM netfs + +#if !defined(_TRACE_NETFS_H) || defined(TRACE_HEADER_MULTI_READ) +#define _TRACE_NETFS_H + +#include + +/* + * Define enums for tracing information. + */ +#define netfs_read_traces \ + EM(netfs_read_trace_dio_read, "DIO-READ ") \ + EM(netfs_read_trace_expanded, "EXPANDED ") \ + EM(netfs_read_trace_readahead, "READAHEAD") \ + EM(netfs_read_trace_readpage, "READPAGE ") \ + EM(netfs_read_trace_read_gaps, "READ-GAPS") \ + EM(netfs_read_trace_read_single, "READ-SNGL") \ + EM(netfs_read_trace_prefetch_for_write, "PREFETCHW") \ + E_(netfs_read_trace_write_begin, "WRITEBEGN") + +#define netfs_write_traces \ + EM(netfs_write_trace_copy_to_cache, "COPY2CACH") \ + EM(netfs_write_trace_dio_write, "DIO-WRITE") \ + EM(netfs_write_trace_unbuffered_write, "UNB-WRITE") \ + EM(netfs_write_trace_writeback, "WRITEBACK") \ + EM(netfs_write_trace_writeback_single, "WB-SINGLE") \ + E_(netfs_write_trace_writethrough, "WRITETHRU") + +#define netfs_rreq_origins \ + EM(NETFS_READAHEAD, "RA") \ + EM(NETFS_READPAGE, "RP") \ + EM(NETFS_READ_GAPS, "RG") \ + EM(NETFS_READ_SINGLE, "R1") \ + EM(NETFS_READ_FOR_WRITE, "RW") \ + EM(NETFS_UNBUFFERED_READ, "UR") \ + EM(NETFS_DIO_READ, "DR") \ + EM(NETFS_WRITEBACK, "WB") \ + EM(NETFS_WRITEBACK_SINGLE, "W1") \ + EM(NETFS_WRITETHROUGH, "WT") \ + EM(NETFS_UNBUFFERED_WRITE, "UW") \ + EM(NETFS_DIO_WRITE, "DW") \ + E_(NETFS_PGPRIV2_COPY_TO_CACHE, "2C") + +#define netfs_rreq_traces \ + EM(netfs_rreq_trace_assess, "ASSESS ") \ + EM(netfs_rreq_trace_collect, "COLLECT") \ + EM(netfs_rreq_trace_complete, "COMPLET") \ + EM(netfs_rreq_trace_copy, "COPY ") \ + EM(netfs_rreq_trace_dirty, "DIRTY ") \ + EM(netfs_rreq_trace_done, "DONE ") \ + EM(netfs_rreq_trace_end_copy_to_cache, "END-C2C") \ + EM(netfs_rreq_trace_free, "FREE ") \ + EM(netfs_rreq_trace_intr, "INTR ") \ + EM(netfs_rreq_trace_ki_complete, "KI-CMPL") \ + EM(netfs_rreq_trace_recollect, "RECLLCT") \ + EM(netfs_rreq_trace_redirty, "REDIRTY") \ + EM(netfs_rreq_trace_resubmit, "RESUBMT") \ + EM(netfs_rreq_trace_set_abandon, "S-ABNDN") \ + EM(netfs_rreq_trace_set_pause, "PAUSE ") \ + EM(netfs_rreq_trace_unlock, "UNLOCK ") \ + EM(netfs_rreq_trace_unlock_pgpriv2, "UNLCK-2") \ + EM(netfs_rreq_trace_unmark, "UNMARK ") \ + EM(netfs_rreq_trace_unpause, "UNPAUSE") \ + EM(netfs_rreq_trace_wait_ip, "WAIT-IP") \ + EM(netfs_rreq_trace_wait_pause, "--PAUSED--") \ + EM(netfs_rreq_trace_wait_quiesce, "WAIT-QUIESCE") \ + EM(netfs_rreq_trace_waited_ip, "DONE-IP") \ + EM(netfs_rreq_trace_waited_pause, "--UNPAUSED--") \ + EM(netfs_rreq_trace_waited_quiesce, "DONE-QUIESCE") \ + EM(netfs_rreq_trace_wake_ip, "WAKE-IP") \ + EM(netfs_rreq_trace_wake_queue, "WAKE-Q ") \ + E_(netfs_rreq_trace_write_done, "WR-DONE") + +#define netfs_sreq_sources \ + EM(NETFS_SOURCE_UNKNOWN, "----") \ + EM(NETFS_FILL_WITH_ZEROES, "ZERO") \ + EM(NETFS_DOWNLOAD_FROM_SERVER, "DOWN") \ + EM(NETFS_READ_FROM_CACHE, "READ") \ + EM(NETFS_INVALID_READ, "INVL") \ + EM(NETFS_UPLOAD_TO_SERVER, "UPLD") \ + E_(NETFS_WRITE_TO_CACHE, "WRIT") + +#define netfs_sreq_traces \ + EM(netfs_sreq_trace_abandoned, "ABNDN") \ + EM(netfs_sreq_trace_add_donations, "+DON ") \ + EM(netfs_sreq_trace_added, "ADD ") \ + EM(netfs_sreq_trace_cache_nowrite, "CA-NW") \ + EM(netfs_sreq_trace_cache_prepare, "CA-PR") \ + EM(netfs_sreq_trace_cache_write, "CA-WR") \ + EM(netfs_sreq_trace_cancel, "CANCL") \ + EM(netfs_sreq_trace_clear, "CLEAR") \ + EM(netfs_sreq_trace_consumed, "CONSM") \ + EM(netfs_sreq_trace_discard, "DSCRD") \ + EM(netfs_sreq_trace_donate_to_prev, "DON-P") \ + EM(netfs_sreq_trace_donate_to_next, "DON-N") \ + EM(netfs_sreq_trace_download_instead, "RDOWN") \ + EM(netfs_sreq_trace_fail, "FAIL ") \ + EM(netfs_sreq_trace_free, "FREE ") \ + EM(netfs_sreq_trace_hit_eof, "EOF ") \ + EM(netfs_sreq_trace_io_bad, "I-BAD") \ + EM(netfs_sreq_trace_io_malformed, "I-MLF") \ + EM(netfs_sreq_trace_io_unknown, "I-UNK") \ + EM(netfs_sreq_trace_io_progress, "I-OK ") \ + EM(netfs_sreq_trace_io_req_submitted, "I-RSB") \ + EM(netfs_sreq_trace_io_retry_needed, "I-RTR") \ + EM(netfs_sreq_trace_limited, "LIMIT") \ + EM(netfs_sreq_trace_need_clear, "N-CLR") \ + EM(netfs_sreq_trace_partial_read, "PARTR") \ + EM(netfs_sreq_trace_need_retry, "ND-RT") \ + EM(netfs_sreq_trace_prepare, "PREP ") \ + EM(netfs_sreq_trace_prep_failed, "PRPFL") \ + EM(netfs_sreq_trace_progress, "PRGRS") \ + EM(netfs_sreq_trace_reprep_failed, "REPFL") \ + EM(netfs_sreq_trace_retry, "RETRY") \ + EM(netfs_sreq_trace_short, "SHORT") \ + EM(netfs_sreq_trace_split, "SPLIT") \ + EM(netfs_sreq_trace_submit, "SUBMT") \ + EM(netfs_sreq_trace_superfluous, "SPRFL") \ + EM(netfs_sreq_trace_terminated, "TERM ") \ + EM(netfs_sreq_trace_wait_for, "_WAIT") \ + EM(netfs_sreq_trace_write, "WRITE") \ + EM(netfs_sreq_trace_write_skip, "SKIP ") \ + E_(netfs_sreq_trace_write_term, "WTERM") + +#define netfs_failures \ + EM(netfs_fail_check_write_begin, "check-write-begin") \ + EM(netfs_fail_copy_to_cache, "copy-to-cache") \ + EM(netfs_fail_dio_read_short, "dio-read-short") \ + EM(netfs_fail_dio_read_zero, "dio-read-zero") \ + EM(netfs_fail_read, "read") \ + EM(netfs_fail_short_read, "short-read") \ + EM(netfs_fail_prepare_write, "prep-write") \ + E_(netfs_fail_write, "write") + +#define netfs_rreq_ref_traces \ + EM(netfs_rreq_trace_get_for_outstanding,"GET OUTSTND") \ + EM(netfs_rreq_trace_get_subreq, "GET SUBREQ ") \ + EM(netfs_rreq_trace_put_complete, "PUT COMPLT ") \ + EM(netfs_rreq_trace_put_discard, "PUT DISCARD") \ + EM(netfs_rreq_trace_put_failed, "PUT FAILED ") \ + EM(netfs_rreq_trace_put_no_submit, "PUT NO-SUBM") \ + EM(netfs_rreq_trace_put_return, "PUT RETURN ") \ + EM(netfs_rreq_trace_put_subreq, "PUT SUBREQ ") \ + EM(netfs_rreq_trace_put_work_ip, "PUT WORK IP ") \ + EM(netfs_rreq_trace_see_work, "SEE WORK ") \ + EM(netfs_rreq_trace_see_work_complete, "SEE WORK CP") \ + E_(netfs_rreq_trace_new, "NEW ") + +#define netfs_sreq_ref_traces \ + EM(netfs_sreq_trace_get_copy_to_cache, "GET COPY2C ") \ + EM(netfs_sreq_trace_get_resubmit, "GET RESUBMT") \ + EM(netfs_sreq_trace_get_submit, "GET SUBMIT ") \ + EM(netfs_sreq_trace_get_short_read, "GET SHORTRD") \ + EM(netfs_sreq_trace_new, "NEW ") \ + EM(netfs_sreq_trace_put_abandon, "PUT ABANDON") \ + EM(netfs_sreq_trace_put_cancel, "PUT CANCEL ") \ + EM(netfs_sreq_trace_put_clear, "PUT CLEAR ") \ + EM(netfs_sreq_trace_put_consumed, "PUT CONSUME") \ + EM(netfs_sreq_trace_put_done, "PUT DONE ") \ + EM(netfs_sreq_trace_put_failed, "PUT FAILED ") \ + EM(netfs_sreq_trace_put_merged, "PUT MERGED ") \ + EM(netfs_sreq_trace_put_no_copy, "PUT NO COPY") \ + EM(netfs_sreq_trace_put_oom, "PUT OOM ") \ + EM(netfs_sreq_trace_put_wip, "PUT WIP ") \ + EM(netfs_sreq_trace_put_work, "PUT WORK ") \ + EM(netfs_sreq_trace_put_terminated, "PUT TERM ") \ + E_(netfs_sreq_trace_see_failed, "SEE FAILED ") + +#define netfs_folio_traces \ + EM(netfs_folio_is_uptodate, "mod-uptodate") \ + EM(netfs_just_prefetch, "mod-prefetch") \ + EM(netfs_whole_folio_modify, "mod-whole-f") \ + EM(netfs_whole_folio_modify_efault, "mod-whole-f!") \ + EM(netfs_whole_folio_modify_filled, "mod-whole-f+") \ + EM(netfs_whole_folio_modify_filled_efault, "mod-whole-f+!") \ + EM(netfs_modify_and_clear, "mod-n-clear") \ + EM(netfs_modify_and_clear_rm_finfo, "mod-n-clear+") \ + EM(netfs_streaming_write, "mod-streamw") \ + EM(netfs_streaming_write_cont, "mod-streamw+") \ + EM(netfs_flush_content, "flush") \ + EM(netfs_streaming_filled_page, "mod-streamw-f") \ + EM(netfs_streaming_cont_filled_page, "mod-streamw-f+") \ + EM(netfs_folio_trace_abandon, "abandon") \ + EM(netfs_folio_trace_alloc_buffer, "alloc-buf") \ + EM(netfs_folio_trace_cancel_copy, "cancel-copy") \ + EM(netfs_folio_trace_cancel_store, "cancel-store") \ + EM(netfs_folio_trace_clear, "clear") \ + EM(netfs_folio_trace_clear_cc, "clear-cc") \ + EM(netfs_folio_trace_clear_g, "clear-g") \ + EM(netfs_folio_trace_clear_s, "clear-s") \ + EM(netfs_folio_trace_copy_to_cache, "mark-copy") \ + EM(netfs_folio_trace_end_copy, "end-copy") \ + EM(netfs_folio_trace_filled_gaps, "filled-gaps") \ + EM(netfs_folio_trace_invalidate_all, "inval-all") \ + EM(netfs_folio_trace_invalidate_front, "inval-front") \ + EM(netfs_folio_trace_invalidate_middle, "inval-mid") \ + EM(netfs_folio_trace_invalidate_tail, "inval-tail") \ + EM(netfs_folio_trace_kill, "kill") \ + EM(netfs_folio_trace_kill_cc, "kill-cc") \ + EM(netfs_folio_trace_kill_g, "kill-g") \ + EM(netfs_folio_trace_kill_s, "kill-s") \ + EM(netfs_folio_trace_mkwrite, "mkwrite") \ + EM(netfs_folio_trace_mkwrite_plus, "mkwrite+") \ + EM(netfs_folio_trace_not_under_wback, "!wback") \ + EM(netfs_folio_trace_not_locked, "!locked") \ + EM(netfs_folio_trace_put, "put") \ + EM(netfs_folio_trace_read, "read") \ + EM(netfs_folio_trace_read_done, "read-done") \ + EM(netfs_folio_trace_read_gaps, "read-gaps") \ + EM(netfs_folio_trace_read_unlock, "read-unlock") \ + EM(netfs_folio_trace_redirtied, "redirtied") \ + EM(netfs_folio_trace_store, "store") \ + EM(netfs_folio_trace_store_copy, "store-copy") \ + EM(netfs_folio_trace_store_plus, "store+") \ + EM(netfs_folio_trace_wthru, "wthru") \ + E_(netfs_folio_trace_wthru_plus, "wthru+") + +#define netfs_collect_contig_traces \ + EM(netfs_contig_trace_collect, "Collect") \ + EM(netfs_contig_trace_jump, "-->JUMP-->") \ + E_(netfs_contig_trace_unlock, "Unlock") + +#define netfs_donate_traces \ + EM(netfs_trace_donate_tail_to_prev, "tail-to-prev") \ + EM(netfs_trace_donate_to_prev, "to-prev") \ + EM(netfs_trace_donate_to_next, "to-next") \ + E_(netfs_trace_donate_to_deferred_next, "defer-next") + +#define netfs_folioq_traces \ + EM(netfs_trace_folioq_alloc_buffer, "alloc-buf") \ + EM(netfs_trace_folioq_clear, "clear") \ + EM(netfs_trace_folioq_delete, "delete") \ + EM(netfs_trace_folioq_make_space, "make-space") \ + EM(netfs_trace_folioq_rollbuf_init, "roll-init") \ + E_(netfs_trace_folioq_read_progress, "r-progress") + +#ifndef __NETFS_DECLARE_TRACE_ENUMS_ONCE_ONLY +#define __NETFS_DECLARE_TRACE_ENUMS_ONCE_ONLY + +#undef EM +#undef E_ +#define EM(a, b) a, +#define E_(a, b) a + +enum netfs_read_trace { netfs_read_traces } __mode(byte); +enum netfs_write_trace { netfs_write_traces } __mode(byte); +enum netfs_rreq_trace { netfs_rreq_traces } __mode(byte); +enum netfs_sreq_trace { netfs_sreq_traces } __mode(byte); +enum netfs_failure { netfs_failures } __mode(byte); +enum netfs_rreq_ref_trace { netfs_rreq_ref_traces } __mode(byte); +enum netfs_sreq_ref_trace { netfs_sreq_ref_traces } __mode(byte); +enum netfs_folio_trace { netfs_folio_traces } __mode(byte); +enum netfs_collect_contig_trace { netfs_collect_contig_traces } __mode(byte); +enum netfs_donate_trace { netfs_donate_traces } __mode(byte); +enum netfs_folioq_trace { netfs_folioq_traces } __mode(byte); + +#endif + +/* + * 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); + +netfs_read_traces; +netfs_write_traces; +netfs_rreq_origins; +netfs_rreq_traces; +netfs_sreq_sources; +netfs_sreq_traces; +netfs_failures; +netfs_rreq_ref_traces; +netfs_sreq_ref_traces; +netfs_folio_traces; +netfs_collect_contig_traces; +netfs_donate_traces; +netfs_folioq_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(netfs_read, + TP_PROTO(struct netfs_io_request *rreq, + loff_t start, size_t len, + enum netfs_read_trace what), + + TP_ARGS(rreq, start, len, what), + + TP_STRUCT__entry( + __field(unsigned int, rreq) + __field(unsigned int, cookie) + __field(loff_t, i_size) + __field(loff_t, start) + __field(size_t, len) + __field(enum netfs_read_trace, what) + __field(u64, netfs_inode) + ), + + TP_fast_assign( + __entry->rreq = rreq->debug_id; + __entry->cookie = rreq->cache_resources.debug_id; + __entry->i_size = rreq->i_size; + __entry->start = start; + __entry->len = len; + __entry->what = what; + __entry->netfs_inode = rreq->inode->i_ino; + ), + + TP_printk("R=%08x %s c=%08x ni=%llx s=%llx l=%zx sz=%llx", + __entry->rreq, + __print_symbolic(__entry->what, netfs_read_traces), + __entry->cookie, + __entry->netfs_inode, + __entry->start, __entry->len, __entry->i_size) + ); + +TRACE_EVENT(netfs_rreq, + TP_PROTO(struct netfs_io_request *rreq, + enum netfs_rreq_trace what), + + TP_ARGS(rreq, what), + + TP_STRUCT__entry( + __field(unsigned int, rreq) + __field(unsigned int, flags) + __field(enum netfs_io_origin, origin) + __field(enum netfs_rreq_trace, what) + ), + + TP_fast_assign( + __entry->rreq = rreq->debug_id; + __entry->flags = rreq->flags; + __entry->origin = rreq->origin; + __entry->what = what; + ), + + TP_printk("R=%08x %s %s f=%02x", + __entry->rreq, + __print_symbolic(__entry->origin, netfs_rreq_origins), + __print_symbolic(__entry->what, netfs_rreq_traces), + __entry->flags) + ); + +TRACE_EVENT(netfs_sreq, + TP_PROTO(struct netfs_io_subrequest *sreq, + enum netfs_sreq_trace what), + + TP_ARGS(sreq, what), + + TP_STRUCT__entry( + __field(unsigned int, rreq) + __field(unsigned short, index) + __field(short, error) + __field(unsigned short, flags) + __field(enum netfs_io_source, source) + __field(enum netfs_sreq_trace, what) + __field(u8, slot) + __field(size_t, len) + __field(size_t, transferred) + __field(loff_t, start) + ), + + TP_fast_assign( + __entry->rreq = sreq->rreq->debug_id; + __entry->index = sreq->debug_index; + __entry->error = sreq->error; + __entry->flags = sreq->flags; + __entry->source = sreq->source; + __entry->what = what; + __entry->len = sreq->len; + __entry->transferred = sreq->transferred; + __entry->start = sreq->start; + __entry->slot = sreq->io_iter.folioq_slot; + ), + + TP_printk("R=%08x[%x] %s %s f=%03x s=%llx %zx/%zx s=%u e=%d", + __entry->rreq, __entry->index, + __print_symbolic(__entry->source, netfs_sreq_sources), + __print_symbolic(__entry->what, netfs_sreq_traces), + __entry->flags, + __entry->start, __entry->transferred, __entry->len, + __entry->slot, __entry->error) + ); + +TRACE_EVENT(netfs_failure, + TP_PROTO(struct netfs_io_request *rreq, + struct netfs_io_subrequest *sreq, + int error, enum netfs_failure what), + + TP_ARGS(rreq, sreq, error, what), + + TP_STRUCT__entry( + __field(unsigned int, rreq) + __field(short, index) + __field(short, error) + __field(unsigned short, flags) + __field(enum netfs_io_source, source) + __field(enum netfs_failure, what) + __field(size_t, len) + __field(size_t, transferred) + __field(loff_t, start) + ), + + TP_fast_assign( + __entry->rreq = rreq->debug_id; + __entry->index = sreq ? sreq->debug_index : -1; + __entry->error = error; + __entry->flags = sreq ? sreq->flags : 0; + __entry->source = sreq ? sreq->source : NETFS_INVALID_READ; + __entry->what = what; + __entry->len = sreq ? sreq->len : rreq->len; + __entry->transferred = sreq ? sreq->transferred : 0; + __entry->start = sreq ? sreq->start : 0; + ), + + TP_printk("R=%08x[%x] %s f=%02x s=%llx %zx/%zx %s e=%d", + __entry->rreq, __entry->index, + __print_symbolic(__entry->source, netfs_sreq_sources), + __entry->flags, + __entry->start, __entry->transferred, __entry->len, + __print_symbolic(__entry->what, netfs_failures), + __entry->error) + ); + +TRACE_EVENT(netfs_rreq_ref, + TP_PROTO(unsigned int rreq_debug_id, int ref, + enum netfs_rreq_ref_trace what), + + TP_ARGS(rreq_debug_id, ref, what), + + TP_STRUCT__entry( + __field(unsigned int, rreq) + __field(int, ref) + __field(enum netfs_rreq_ref_trace, what) + ), + + TP_fast_assign( + __entry->rreq = rreq_debug_id; + __entry->ref = ref; + __entry->what = what; + ), + + TP_printk("R=%08x %s r=%u", + __entry->rreq, + __print_symbolic(__entry->what, netfs_rreq_ref_traces), + __entry->ref) + ); + +TRACE_EVENT(netfs_sreq_ref, + TP_PROTO(unsigned int rreq_debug_id, unsigned int subreq_debug_index, + int ref, enum netfs_sreq_ref_trace what), + + TP_ARGS(rreq_debug_id, subreq_debug_index, ref, what), + + TP_STRUCT__entry( + __field(unsigned int, rreq) + __field(unsigned int, subreq) + __field(int, ref) + __field(enum netfs_sreq_ref_trace, what) + ), + + TP_fast_assign( + __entry->rreq = rreq_debug_id; + __entry->subreq = subreq_debug_index; + __entry->ref = ref; + __entry->what = what; + ), + + TP_printk("R=%08x[%x] %s r=%u", + __entry->rreq, + __entry->subreq, + __print_symbolic(__entry->what, netfs_sreq_ref_traces), + __entry->ref) + ); + +TRACE_EVENT(netfs_folio, + TP_PROTO(struct folio *folio, enum netfs_folio_trace why), + + TP_ARGS(folio, why), + + TP_STRUCT__entry( + __field(u64, ino) + __field(pgoff_t, index) + __field(unsigned int, nr) + __field(enum netfs_folio_trace, why) + ), + + TP_fast_assign( + struct address_space *__m = READ_ONCE(folio->mapping); + __entry->ino = __m ? __m->host->i_ino : 0; + __entry->why = why; + __entry->index = folio->index; + __entry->nr = folio_nr_pages(folio); + ), + + TP_printk("i=%05llx ix=%05lx-%05lx %s", + __entry->ino, __entry->index, __entry->index + __entry->nr - 1, + __print_symbolic(__entry->why, netfs_folio_traces)) + ); + +TRACE_EVENT(netfs_write_iter, + TP_PROTO(const struct kiocb *iocb, const struct iov_iter *from), + + TP_ARGS(iocb, from), + + TP_STRUCT__entry( + __field(unsigned long long, start) + __field(size_t, len) + __field(unsigned int, flags) + __field(unsigned int, ino) + ), + + TP_fast_assign( + __entry->start = iocb->ki_pos; + __entry->len = iov_iter_count(from); + __entry->ino = iocb->ki_filp->f_inode->i_ino; + __entry->flags = iocb->ki_flags; + ), + + TP_printk("WRITE-ITER i=%x s=%llx l=%zx f=%x", + __entry->ino, __entry->start, __entry->len, __entry->flags) + ); + +TRACE_EVENT(netfs_write, + TP_PROTO(const struct netfs_io_request *wreq, + enum netfs_write_trace what), + + TP_ARGS(wreq, what), + + TP_STRUCT__entry( + __field(unsigned int, wreq) + __field(unsigned int, cookie) + __field(unsigned int, ino) + __field(enum netfs_write_trace, what) + __field(unsigned long long, start) + __field(unsigned long long, len) + ), + + TP_fast_assign( + struct netfs_inode *__ctx = netfs_inode(wreq->inode); + struct fscache_cookie *__cookie = netfs_i_cookie(__ctx); + __entry->wreq = wreq->debug_id; + __entry->cookie = __cookie ? __cookie->debug_id : 0; + __entry->ino = wreq->inode->i_ino; + __entry->what = what; + __entry->start = wreq->start; + __entry->len = wreq->len; + ), + + TP_printk("R=%08x %s c=%08x i=%x by=%llx-%llx", + __entry->wreq, + __print_symbolic(__entry->what, netfs_write_traces), + __entry->cookie, + __entry->ino, + __entry->start, __entry->start + __entry->len - 1) + ); + +TRACE_EVENT(netfs_copy2cache, + TP_PROTO(const struct netfs_io_request *rreq, + const struct netfs_io_request *creq), + + TP_ARGS(rreq, creq), + + TP_STRUCT__entry( + __field(unsigned int, rreq) + __field(unsigned int, creq) + __field(unsigned int, cookie) + __field(unsigned int, ino) + ), + + TP_fast_assign( + struct netfs_inode *__ctx = netfs_inode(rreq->inode); + struct fscache_cookie *__cookie = netfs_i_cookie(__ctx); + __entry->rreq = rreq->debug_id; + __entry->creq = creq->debug_id; + __entry->cookie = __cookie ? __cookie->debug_id : 0; + __entry->ino = rreq->inode->i_ino; + ), + + TP_printk("R=%08x CR=%08x c=%08x i=%x ", + __entry->rreq, + __entry->creq, + __entry->cookie, + __entry->ino) + ); + +TRACE_EVENT(netfs_collect, + TP_PROTO(const struct netfs_io_request *wreq), + + TP_ARGS(wreq), + + TP_STRUCT__entry( + __field(unsigned int, wreq) + __field(unsigned int, len) + __field(unsigned long long, transferred) + __field(unsigned long long, start) + ), + + TP_fast_assign( + __entry->wreq = wreq->debug_id; + __entry->start = wreq->start; + __entry->len = wreq->len; + __entry->transferred = wreq->transferred; + ), + + TP_printk("R=%08x s=%llx-%llx", + __entry->wreq, + __entry->start + __entry->transferred, + __entry->start + __entry->len) + ); + +TRACE_EVENT(netfs_collect_sreq, + TP_PROTO(const struct netfs_io_request *wreq, + const struct netfs_io_subrequest *subreq), + + TP_ARGS(wreq, subreq), + + TP_STRUCT__entry( + __field(unsigned int, wreq) + __field(unsigned int, subreq) + __field(unsigned int, stream) + __field(unsigned int, len) + __field(unsigned int, transferred) + __field(unsigned long long, start) + ), + + TP_fast_assign( + __entry->wreq = wreq->debug_id; + __entry->subreq = subreq->debug_index; + __entry->stream = subreq->stream_nr; + __entry->start = subreq->start; + __entry->len = subreq->len; + __entry->transferred = subreq->transferred; + ), + + TP_printk("R=%08x[%u:%02x] s=%llx t=%x/%x", + __entry->wreq, __entry->stream, __entry->subreq, + __entry->start, __entry->transferred, __entry->len) + ); + +TRACE_EVENT(netfs_collect_folio, + TP_PROTO(const struct netfs_io_request *wreq, + const struct folio *folio, + unsigned long long fend, + unsigned long long collected_to), + + TP_ARGS(wreq, folio, fend, collected_to), + + TP_STRUCT__entry( + __field(unsigned int, wreq) + __field(unsigned long, index) + __field(unsigned long long, fend) + __field(unsigned long long, cleaned_to) + __field(unsigned long long, collected_to) + ), + + TP_fast_assign( + __entry->wreq = wreq->debug_id; + __entry->index = folio->index; + __entry->fend = fend; + __entry->cleaned_to = wreq->cleaned_to; + __entry->collected_to = collected_to; + ), + + TP_printk("R=%08x ix=%05lx r=%llx-%llx t=%llx/%llx", + __entry->wreq, __entry->index, + (unsigned long long)__entry->index * PAGE_SIZE, __entry->fend, + __entry->cleaned_to, __entry->collected_to) + ); + +TRACE_EVENT(netfs_collect_state, + TP_PROTO(const struct netfs_io_request *wreq, + unsigned long long collected_to, + unsigned int notes), + + TP_ARGS(wreq, collected_to, notes), + + TP_STRUCT__entry( + __field(unsigned int, wreq) + __field(unsigned int, notes) + __field(unsigned long long, collected_to) + __field(unsigned long long, cleaned_to) + ), + + TP_fast_assign( + __entry->wreq = wreq->debug_id; + __entry->notes = notes; + __entry->collected_to = collected_to; + __entry->cleaned_to = wreq->cleaned_to; + ), + + TP_printk("R=%08x col=%llx cln=%llx n=%x", + __entry->wreq, __entry->collected_to, + __entry->cleaned_to, + __entry->notes) + ); + +TRACE_EVENT(netfs_collect_gap, + TP_PROTO(const struct netfs_io_request *wreq, + const struct netfs_io_stream *stream, + unsigned long long jump_to, char type), + + TP_ARGS(wreq, stream, jump_to, type), + + TP_STRUCT__entry( + __field(unsigned int, wreq) + __field(unsigned char, stream) + __field(unsigned char, type) + __field(unsigned long long, from) + __field(unsigned long long, to) + ), + + TP_fast_assign( + __entry->wreq = wreq->debug_id; + __entry->stream = stream->stream_nr; + __entry->from = stream->collected_to; + __entry->to = jump_to; + __entry->type = type; + ), + + TP_printk("R=%08x[%x:] %llx->%llx %c", + __entry->wreq, __entry->stream, + __entry->from, __entry->to, __entry->type) + ); + +TRACE_EVENT(netfs_collect_stream, + TP_PROTO(const struct netfs_io_request *wreq, + const struct netfs_io_stream *stream), + + TP_ARGS(wreq, stream), + + TP_STRUCT__entry( + __field(unsigned int, wreq) + __field(unsigned char, stream) + __field(unsigned long long, collected_to) + __field(unsigned long long, issued_to) + ), + + TP_fast_assign( + __entry->wreq = wreq->debug_id; + __entry->stream = stream->stream_nr; + __entry->collected_to = stream->collected_to; + __entry->issued_to = atomic64_read(&wreq->issued_to); + ), + + TP_printk("R=%08x[%x:] cto=%llx ito=%llx", + __entry->wreq, __entry->stream, + __entry->collected_to, __entry->issued_to) + ); + +TRACE_EVENT(netfs_folioq, + TP_PROTO(const struct folio_queue *fq, + enum netfs_folioq_trace trace), + + TP_ARGS(fq, trace), + + TP_STRUCT__entry( + __field(unsigned int, rreq) + __field(unsigned int, id) + __field(enum netfs_folioq_trace, trace) + ), + + TP_fast_assign( + __entry->rreq = fq ? fq->rreq_id : 0; + __entry->id = fq ? fq->debug_id : 0; + __entry->trace = trace; + ), + + TP_printk("R=%08x fq=%x %s", + __entry->rreq, __entry->id, + __print_symbolic(__entry->trace, netfs_folioq_traces)) + ); + +#undef EM +#undef E_ +#endif /* _TRACE_NETFS_H */ + +/* This part must be outside protection */ +#include -- cgit v1.3.1