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
112 lines
3.2 KiB
C
112 lines
3.2 KiB
C
// SPDX-License-Identifier: GPL-2.0
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#include <linux/compiler.h>
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#include "event.h"
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#include "tests.h"
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#include "stat.h"
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#include "counts.h"
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#include "debug.h"
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static bool has_term(struct stat_config_event *config,
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u64 tag, u64 val)
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{
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unsigned i;
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for (i = 0; i < config->nr; i++) {
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if ((config->data[i].tag == tag) &&
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(config->data[i].val == val))
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return true;
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}
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return false;
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}
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static int process_stat_config_event(struct perf_tool *tool __maybe_unused,
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union perf_event *event,
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struct perf_sample *sample __maybe_unused,
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struct machine *machine __maybe_unused)
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{
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struct stat_config_event *config = &event->stat_config;
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struct perf_stat_config stat_config;
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#define HAS(term, val) \
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has_term(config, PERF_STAT_CONFIG_TERM__##term, val)
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TEST_ASSERT_VAL("wrong nr", config->nr == PERF_STAT_CONFIG_TERM__MAX);
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TEST_ASSERT_VAL("wrong aggr_mode", HAS(AGGR_MODE, AGGR_CORE));
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TEST_ASSERT_VAL("wrong scale", HAS(SCALE, 1));
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TEST_ASSERT_VAL("wrong interval", HAS(INTERVAL, 1));
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#undef HAS
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perf_event__read_stat_config(&stat_config, config);
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TEST_ASSERT_VAL("wrong aggr_mode", stat_config.aggr_mode == AGGR_CORE);
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TEST_ASSERT_VAL("wrong scale", stat_config.scale == 1);
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TEST_ASSERT_VAL("wrong interval", stat_config.interval == 1);
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return 0;
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}
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int test__synthesize_stat_config(struct test *test __maybe_unused, int subtest __maybe_unused)
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{
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struct perf_stat_config stat_config = {
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.aggr_mode = AGGR_CORE,
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.scale = 1,
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.interval = 1,
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};
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TEST_ASSERT_VAL("failed to synthesize stat_config",
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!perf_event__synthesize_stat_config(NULL, &stat_config, process_stat_config_event, NULL));
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return 0;
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}
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static int process_stat_event(struct perf_tool *tool __maybe_unused,
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union perf_event *event,
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struct perf_sample *sample __maybe_unused,
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struct machine *machine __maybe_unused)
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{
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struct stat_event *st = &event->stat;
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TEST_ASSERT_VAL("wrong cpu", st->cpu == 1);
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TEST_ASSERT_VAL("wrong thread", st->thread == 2);
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TEST_ASSERT_VAL("wrong id", st->id == 3);
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TEST_ASSERT_VAL("wrong val", st->val == 100);
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TEST_ASSERT_VAL("wrong run", st->ena == 200);
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TEST_ASSERT_VAL("wrong ena", st->run == 300);
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return 0;
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}
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int test__synthesize_stat(struct test *test __maybe_unused, int subtest __maybe_unused)
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{
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struct perf_counts_values count;
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count.val = 100;
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count.ena = 200;
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count.run = 300;
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TEST_ASSERT_VAL("failed to synthesize stat_config",
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!perf_event__synthesize_stat(NULL, 1, 2, 3, &count, process_stat_event, NULL));
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return 0;
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}
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static int process_stat_round_event(struct perf_tool *tool __maybe_unused,
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union perf_event *event,
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struct perf_sample *sample __maybe_unused,
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struct machine *machine __maybe_unused)
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{
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struct stat_round_event *stat_round = &event->stat_round;
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TEST_ASSERT_VAL("wrong time", stat_round->time == 0xdeadbeef);
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TEST_ASSERT_VAL("wrong type", stat_round->type == PERF_STAT_ROUND_TYPE__INTERVAL);
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return 0;
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}
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int test__synthesize_stat_round(struct test *test __maybe_unused, int subtest __maybe_unused)
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{
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TEST_ASSERT_VAL("failed to synthesize stat_config",
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!perf_event__synthesize_stat_round(NULL, 0xdeadbeef, PERF_STAT_ROUND_TYPE__INTERVAL,
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process_stat_round_event, NULL));
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return 0;
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}
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