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
119 lines
3 KiB
C
119 lines
3 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
/*
|
|
* builtin-buildid-list.c
|
|
*
|
|
* Builtin buildid-list command: list buildids in perf.data, in the running
|
|
* kernel and in ELF files.
|
|
*
|
|
* Copyright (C) 2009, Red Hat Inc.
|
|
* Copyright (C) 2009, Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
*/
|
|
#include "builtin.h"
|
|
#include "perf.h"
|
|
#include "util/build-id.h"
|
|
#include "util/cache.h"
|
|
#include "util/debug.h"
|
|
#include <subcmd/parse-options.h>
|
|
#include "util/session.h"
|
|
#include "util/symbol.h"
|
|
#include "util/data.h"
|
|
#include <errno.h>
|
|
|
|
static int sysfs__fprintf_build_id(FILE *fp)
|
|
{
|
|
char sbuild_id[SBUILD_ID_SIZE];
|
|
int ret;
|
|
|
|
ret = sysfs__sprintf_build_id("/", sbuild_id);
|
|
if (ret != sizeof(sbuild_id))
|
|
return ret < 0 ? ret : -EINVAL;
|
|
|
|
return fprintf(fp, "%s\n", sbuild_id);
|
|
}
|
|
|
|
static int filename__fprintf_build_id(const char *name, FILE *fp)
|
|
{
|
|
char sbuild_id[SBUILD_ID_SIZE];
|
|
int ret;
|
|
|
|
ret = filename__sprintf_build_id(name, sbuild_id);
|
|
if (ret != sizeof(sbuild_id))
|
|
return ret < 0 ? ret : -EINVAL;
|
|
|
|
return fprintf(fp, "%s\n", sbuild_id);
|
|
}
|
|
|
|
static bool dso__skip_buildid(struct dso *dso, int with_hits)
|
|
{
|
|
return with_hits && !dso->hit;
|
|
}
|
|
|
|
static int perf_session__list_build_ids(bool force, bool with_hits)
|
|
{
|
|
struct perf_session *session;
|
|
struct perf_data data = {
|
|
.file = {
|
|
.path = input_name,
|
|
},
|
|
.mode = PERF_DATA_MODE_READ,
|
|
.force = force,
|
|
};
|
|
|
|
symbol__elf_init();
|
|
/*
|
|
* See if this is an ELF file first:
|
|
*/
|
|
if (filename__fprintf_build_id(input_name, stdout) > 0)
|
|
goto out;
|
|
|
|
session = perf_session__new(&data, false, &build_id__mark_dso_hit_ops);
|
|
if (session == NULL)
|
|
return -1;
|
|
|
|
/*
|
|
* We take all buildids when the file contains AUX area tracing data
|
|
* because we do not decode the trace because it would take too long.
|
|
*/
|
|
if (!perf_data__is_pipe(&data) &&
|
|
perf_header__has_feat(&session->header, HEADER_AUXTRACE))
|
|
with_hits = false;
|
|
|
|
/*
|
|
* in pipe-mode, the only way to get the buildids is to parse
|
|
* the record stream. Buildids are stored as RECORD_HEADER_BUILD_ID
|
|
*/
|
|
if (with_hits || perf_data__is_pipe(&data))
|
|
perf_session__process_events(session);
|
|
|
|
perf_session__fprintf_dsos_buildid(session, stdout, dso__skip_buildid, with_hits);
|
|
perf_session__delete(session);
|
|
out:
|
|
return 0;
|
|
}
|
|
|
|
int cmd_buildid_list(int argc, const char **argv)
|
|
{
|
|
bool show_kernel = false;
|
|
bool with_hits = false;
|
|
bool force = false;
|
|
const struct option options[] = {
|
|
OPT_BOOLEAN('H', "with-hits", &with_hits, "Show only DSOs with hits"),
|
|
OPT_STRING('i', "input", &input_name, "file", "input file name"),
|
|
OPT_BOOLEAN('f', "force", &force, "don't complain, do it"),
|
|
OPT_BOOLEAN('k', "kernel", &show_kernel, "Show current kernel build id"),
|
|
OPT_INCR('v', "verbose", &verbose, "be more verbose"),
|
|
OPT_END()
|
|
};
|
|
const char * const buildid_list_usage[] = {
|
|
"perf buildid-list [<options>]",
|
|
NULL
|
|
};
|
|
|
|
argc = parse_options(argc, argv, options, buildid_list_usage, 0);
|
|
setup_pager();
|
|
|
|
if (show_kernel)
|
|
return !(sysfs__fprintf_build_id(stdout) > 0);
|
|
|
|
return perf_session__list_build_ids(force, with_hits);
|
|
}
|