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
118 lines
3.7 KiB
C
118 lines
3.7 KiB
C
// SPDX-License-Identifier: GPL-2.0
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#include <linux/compiler.h>
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#include "evlist.h"
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#include "evsel.h"
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#include "machine.h"
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#include "tests.h"
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#include "debug.h"
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static int process_event_unit(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 event_update_event *ev = (struct event_update_event *) event;
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TEST_ASSERT_VAL("wrong id", ev->id == 123);
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TEST_ASSERT_VAL("wrong id", ev->type == PERF_EVENT_UPDATE__UNIT);
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TEST_ASSERT_VAL("wrong unit", !strcmp(ev->data, "KRAVA"));
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return 0;
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}
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static int process_event_scale(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 event_update_event *ev = (struct event_update_event *) event;
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struct event_update_event_scale *ev_data;
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ev_data = (struct event_update_event_scale *) ev->data;
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TEST_ASSERT_VAL("wrong id", ev->id == 123);
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TEST_ASSERT_VAL("wrong id", ev->type == PERF_EVENT_UPDATE__SCALE);
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TEST_ASSERT_VAL("wrong scale", ev_data->scale == 0.123);
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return 0;
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}
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struct event_name {
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struct perf_tool tool;
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const char *name;
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};
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static int process_event_name(struct perf_tool *tool,
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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 event_name *tmp = container_of(tool, struct event_name, tool);
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struct event_update_event *ev = (struct event_update_event*) event;
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TEST_ASSERT_VAL("wrong id", ev->id == 123);
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TEST_ASSERT_VAL("wrong id", ev->type == PERF_EVENT_UPDATE__NAME);
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TEST_ASSERT_VAL("wrong name", !strcmp(ev->data, tmp->name));
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return 0;
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}
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static int process_event_cpus(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 event_update_event *ev = (struct event_update_event*) event;
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struct event_update_event_cpus *ev_data;
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struct cpu_map *map;
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ev_data = (struct event_update_event_cpus*) ev->data;
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map = cpu_map__new_data(&ev_data->cpus);
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TEST_ASSERT_VAL("wrong id", ev->id == 123);
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TEST_ASSERT_VAL("wrong type", ev->type == PERF_EVENT_UPDATE__CPUS);
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TEST_ASSERT_VAL("wrong cpus", map->nr == 3);
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TEST_ASSERT_VAL("wrong cpus", map->map[0] == 1);
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TEST_ASSERT_VAL("wrong cpus", map->map[1] == 2);
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TEST_ASSERT_VAL("wrong cpus", map->map[2] == 3);
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cpu_map__put(map);
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return 0;
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}
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int test__event_update(struct test *test __maybe_unused, int subtest __maybe_unused)
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{
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struct perf_evlist *evlist;
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struct perf_evsel *evsel;
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struct event_name tmp;
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evlist = perf_evlist__new_default();
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TEST_ASSERT_VAL("failed to get evlist", evlist);
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evsel = perf_evlist__first(evlist);
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TEST_ASSERT_VAL("failed to allos ids",
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!perf_evsel__alloc_id(evsel, 1, 1));
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perf_evlist__id_add(evlist, evsel, 0, 0, 123);
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evsel->unit = strdup("KRAVA");
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TEST_ASSERT_VAL("failed to synthesize attr update unit",
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!perf_event__synthesize_event_update_unit(NULL, evsel, process_event_unit));
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evsel->scale = 0.123;
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TEST_ASSERT_VAL("failed to synthesize attr update scale",
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!perf_event__synthesize_event_update_scale(NULL, evsel, process_event_scale));
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tmp.name = perf_evsel__name(evsel);
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TEST_ASSERT_VAL("failed to synthesize attr update name",
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!perf_event__synthesize_event_update_name(&tmp.tool, evsel, process_event_name));
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evsel->own_cpus = cpu_map__new("1,2,3");
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TEST_ASSERT_VAL("failed to synthesize attr update cpus",
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!perf_event__synthesize_event_update_cpus(&tmp.tool, evsel, process_event_cpus));
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cpu_map__put(evsel->own_cpus);
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return 0;
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}
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