16c00db4bb
Pull AFS fixes from David Howells:
"Here's a set of patches that fix a number of bugs in the in-kernel AFS
client, including:
- Fix directory locking to not use individual page locks for
directory reading/scanning but rather to use a semaphore on the
afs_vnode struct as the directory contents must be read in a single
blob and data from different reads must not be mixed as the entire
contents may be shuffled about between reads.
- Fix address list parsing to handle port specifiers correctly.
- Only give up callback records on a server if we actually talked to
that server (we might not be able to access a server).
- Fix some callback handling bugs, including refcounting,
whole-volume callbacks and when callbacks actually get broken in
response to a CB.CallBack op.
- Fix some server/address rotation bugs, including giving up if we
can't probe a server; giving up if a server says it doesn't have a
volume, but there are more servers to try.
- Fix the decoding of fetched statuses to be OpenAFS compatible.
- Fix the handling of server lookups in Cache Manager ops (such as
CB.InitCallBackState3) to use a UUID if possible and to handle no
server being found.
- Fix a bug in server lookup where not all addresses are compared.
- Fix the non-encryption of calls that prevents some servers from
being accessed (this also requires an AF_RXRPC patch that has
already gone in through the net tree).
There's also a patch that adds tracepoints to log Cache Manager ops
that don't find a matching server, either by UUID or by address"
* tag 'afs-fixes-20180514' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs:
afs: Fix the non-encryption of calls
afs: Fix CB.CallBack handling
afs: Fix whole-volume callback handling
afs: Fix afs_find_server search loop
afs: Fix the handling of an unfound server in CM operations
afs: Add a tracepoint to record callbacks from unlisted servers
afs: Fix the handling of CB.InitCallBackState3 to find the server by UUID
afs: Fix VNOVOL handling in address rotation
afs: Fix AFSFetchStatus decoder to provide OpenAFS compatibility
afs: Fix server rotation's handling of fileserver probe failure
afs: Fix refcounting in callback registration
afs: Fix giving up callbacks on server destruction
afs: Fix address list parsing
afs: Fix directory page locking
110 lines
3.7 KiB
C
110 lines
3.7 KiB
C
/*
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* db-export.h: Support for exporting data suitable for import to a database
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* Copyright (c) 2014, Intel Corporation.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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*/
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#ifndef __PERF_DB_EXPORT_H
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#define __PERF_DB_EXPORT_H
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#include <linux/types.h>
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#include <linux/list.h>
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struct perf_evsel;
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struct machine;
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struct thread;
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struct comm;
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struct dso;
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struct perf_sample;
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struct addr_location;
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struct call_return_processor;
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struct call_path_root;
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struct call_path;
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struct call_return;
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struct export_sample {
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union perf_event *event;
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struct perf_sample *sample;
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struct perf_evsel *evsel;
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struct addr_location *al;
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u64 db_id;
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u64 comm_db_id;
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u64 dso_db_id;
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u64 sym_db_id;
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u64 offset; /* ip offset from symbol start */
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u64 addr_dso_db_id;
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u64 addr_sym_db_id;
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u64 addr_offset; /* addr offset from symbol start */
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u64 call_path_id;
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};
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struct db_export {
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int (*export_evsel)(struct db_export *dbe, struct perf_evsel *evsel);
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int (*export_machine)(struct db_export *dbe, struct machine *machine);
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int (*export_thread)(struct db_export *dbe, struct thread *thread,
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u64 main_thread_db_id, struct machine *machine);
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int (*export_comm)(struct db_export *dbe, struct comm *comm);
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int (*export_comm_thread)(struct db_export *dbe, u64 db_id,
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struct comm *comm, struct thread *thread);
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int (*export_dso)(struct db_export *dbe, struct dso *dso,
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struct machine *machine);
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int (*export_symbol)(struct db_export *dbe, struct symbol *sym,
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struct dso *dso);
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int (*export_branch_type)(struct db_export *dbe, u32 branch_type,
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const char *name);
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int (*export_sample)(struct db_export *dbe, struct export_sample *es);
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int (*export_call_path)(struct db_export *dbe, struct call_path *cp);
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int (*export_call_return)(struct db_export *dbe,
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struct call_return *cr);
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struct call_return_processor *crp;
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struct call_path_root *cpr;
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u64 evsel_last_db_id;
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u64 machine_last_db_id;
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u64 thread_last_db_id;
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u64 comm_last_db_id;
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u64 comm_thread_last_db_id;
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u64 dso_last_db_id;
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u64 symbol_last_db_id;
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u64 sample_last_db_id;
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u64 call_path_last_db_id;
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u64 call_return_last_db_id;
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struct list_head deferred;
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};
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int db_export__init(struct db_export *dbe);
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int db_export__flush(struct db_export *dbe);
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void db_export__exit(struct db_export *dbe);
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int db_export__evsel(struct db_export *dbe, struct perf_evsel *evsel);
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int db_export__machine(struct db_export *dbe, struct machine *machine);
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int db_export__thread(struct db_export *dbe, struct thread *thread,
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struct machine *machine, struct comm *comm);
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int db_export__comm(struct db_export *dbe, struct comm *comm,
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struct thread *main_thread);
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int db_export__comm_thread(struct db_export *dbe, struct comm *comm,
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struct thread *thread);
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int db_export__dso(struct db_export *dbe, struct dso *dso,
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struct machine *machine);
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int db_export__symbol(struct db_export *dbe, struct symbol *sym,
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struct dso *dso);
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int db_export__branch_type(struct db_export *dbe, u32 branch_type,
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const char *name);
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int db_export__sample(struct db_export *dbe, union perf_event *event,
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struct perf_sample *sample, struct perf_evsel *evsel,
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struct addr_location *al);
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int db_export__branch_types(struct db_export *dbe);
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int db_export__call_path(struct db_export *dbe, struct call_path *cp);
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int db_export__call_return(struct db_export *dbe, struct call_return *cr);
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#endif
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