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
2.7 KiB
C
119 lines
2.7 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
#include "evlist.h"
|
|
#include "evsel.h"
|
|
#include "parse-events.h"
|
|
#include "tests.h"
|
|
#include "debug.h"
|
|
#include <errno.h>
|
|
#include <linux/kernel.h>
|
|
|
|
static int perf_evsel__roundtrip_cache_name_test(void)
|
|
{
|
|
char name[128];
|
|
int type, op, err = 0, ret = 0, i, idx;
|
|
struct perf_evsel *evsel;
|
|
struct perf_evlist *evlist = perf_evlist__new();
|
|
|
|
if (evlist == NULL)
|
|
return -ENOMEM;
|
|
|
|
for (type = 0; type < PERF_COUNT_HW_CACHE_MAX; type++) {
|
|
for (op = 0; op < PERF_COUNT_HW_CACHE_OP_MAX; op++) {
|
|
/* skip invalid cache type */
|
|
if (!perf_evsel__is_cache_op_valid(type, op))
|
|
continue;
|
|
|
|
for (i = 0; i < PERF_COUNT_HW_CACHE_RESULT_MAX; i++) {
|
|
__perf_evsel__hw_cache_type_op_res_name(type, op, i,
|
|
name, sizeof(name));
|
|
err = parse_events(evlist, name, NULL);
|
|
if (err)
|
|
ret = err;
|
|
}
|
|
}
|
|
}
|
|
|
|
idx = 0;
|
|
evsel = perf_evlist__first(evlist);
|
|
|
|
for (type = 0; type < PERF_COUNT_HW_CACHE_MAX; type++) {
|
|
for (op = 0; op < PERF_COUNT_HW_CACHE_OP_MAX; op++) {
|
|
/* skip invalid cache type */
|
|
if (!perf_evsel__is_cache_op_valid(type, op))
|
|
continue;
|
|
|
|
for (i = 0; i < PERF_COUNT_HW_CACHE_RESULT_MAX; i++) {
|
|
__perf_evsel__hw_cache_type_op_res_name(type, op, i,
|
|
name, sizeof(name));
|
|
if (evsel->idx != idx)
|
|
continue;
|
|
|
|
++idx;
|
|
|
|
if (strcmp(perf_evsel__name(evsel), name)) {
|
|
pr_debug("%s != %s\n", perf_evsel__name(evsel), name);
|
|
ret = -1;
|
|
}
|
|
|
|
evsel = perf_evsel__next(evsel);
|
|
}
|
|
}
|
|
}
|
|
|
|
perf_evlist__delete(evlist);
|
|
return ret;
|
|
}
|
|
|
|
static int __perf_evsel__name_array_test(const char *names[], int nr_names)
|
|
{
|
|
int i, err;
|
|
struct perf_evsel *evsel;
|
|
struct perf_evlist *evlist = perf_evlist__new();
|
|
|
|
if (evlist == NULL)
|
|
return -ENOMEM;
|
|
|
|
for (i = 0; i < nr_names; ++i) {
|
|
err = parse_events(evlist, names[i], NULL);
|
|
if (err) {
|
|
pr_debug("failed to parse event '%s', err %d\n",
|
|
names[i], err);
|
|
goto out_delete_evlist;
|
|
}
|
|
}
|
|
|
|
err = 0;
|
|
evlist__for_each_entry(evlist, evsel) {
|
|
if (strcmp(perf_evsel__name(evsel), names[evsel->idx])) {
|
|
--err;
|
|
pr_debug("%s != %s\n", perf_evsel__name(evsel), names[evsel->idx]);
|
|
}
|
|
}
|
|
|
|
out_delete_evlist:
|
|
perf_evlist__delete(evlist);
|
|
return err;
|
|
}
|
|
|
|
#define perf_evsel__name_array_test(names) \
|
|
__perf_evsel__name_array_test(names, ARRAY_SIZE(names))
|
|
|
|
int test__perf_evsel__roundtrip_name_test(struct test *test __maybe_unused, int subtest __maybe_unused)
|
|
{
|
|
int err = 0, ret = 0;
|
|
|
|
err = perf_evsel__name_array_test(perf_evsel__hw_names);
|
|
if (err)
|
|
ret = err;
|
|
|
|
err = __perf_evsel__name_array_test(perf_evsel__sw_names,
|
|
PERF_COUNT_SW_DUMMY + 1);
|
|
if (err)
|
|
ret = err;
|
|
|
|
err = perf_evsel__roundtrip_cache_name_test();
|
|
if (err)
|
|
ret = err;
|
|
|
|
return ret;
|
|
}
|