#include #include #include #include "tests.h" #include "util.h" #include "session.h" #include "evlist.h" #include "debug.h" #define TEMPL "/tmp/perf-test-XXXXXX" #define DATA_SIZE 10 static int get_temp(char *path) { int fd; strcpy(path, TEMPL); fd = mkstemp(path); if (fd < 0) { perror("mkstemp failed"); return -1; } close(fd); return 0; } static int session_write_header(char *path) { struct perf_session *session; struct perf_data_file file = { .path = path, .mode = PERF_DATA_MODE_WRITE, }; session = perf_session__new(&file, false, NULL); TEST_ASSERT_VAL("can't get session", session); session->evlist = perf_evlist__new_default(); TEST_ASSERT_VAL("can't get evlist", session->evlist); perf_header__set_feat(&session->header, HEADER_CPU_TOPOLOGY); perf_header__set_feat(&session->header, HEADER_NRCPUS); session->header.data_size += DATA_SIZE; TEST_ASSERT_VAL("failed to write header", !perf_session__write_header(session, session->evlist, file.fd, true)); perf_session__delete(session); return 0; } static int check_cpu_topology(char *path, struct cpu_map *map) { struct perf_session *session; struct perf_data_file file = { .path = path, .mode = PERF_DATA_MODE_READ, }; int i; session = perf_session__new(&file, false, NULL); TEST_ASSERT_VAL("can't get session", session); for (i = 0; i < session->header.env.nr_cpus_online; i++) { pr_debug("CPU %d, core %d, socket %d\n", i, session->header.env.cpu[i].core_id, session->header.env.cpu[i].socket_id); } for (i = 0; i < map->nr; i++) { TEST_ASSERT_VAL("Core ID doesn't match", (session->header.env.cpu[map->map[i]].core_id == (cpu_map__get_core(map, i, NULL) & 0xffff))); TEST_ASSERT_VAL("Socket ID doesn't match", (session->header.env.cpu[map->map[i]].socket_id == cpu_map__get_socket(map, i, NULL))); } perf_session__delete(session); return 0; } int test_session_topology(int subtest __maybe_unused) { char path[PATH_MAX]; struct cpu_map *map; int ret = -1; TEST_ASSERT_VAL("can't get templ file", !get_temp(path)); pr_debug("templ file: %s\n", path); if (session_write_header(path)) goto free_path; map = cpu_map__new(NULL); if (map == NULL) { pr_debug("failed to get system cpumap\n"); goto free_path; } if (check_cpu_topology(path, map)) goto free_map; ret = 0; free_map: cpu_map__put(map); free_path: unlink(path); return ret; } hor
path: root/include/uapi/scsi/fc/fc_els.h
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authorThomas Gleixner <tglx@linutronix.de>2017-01-31 09:37:34 +0100
committerThomas Gleixner <tglx@linutronix.de>2017-01-31 21:47:58 +0100
commit0becc0ae5b42828785b589f686725ff5bc3b9b25 (patch)
treebe6d0e1f37c38ed0a7dd5da2d4b1e93f0fb43101 /include/uapi/scsi/fc/fc_els.h
parent24c2503255d35c269b67162c397a1a1c1e02f6ce (diff)
x86/mce: Make timer handling more robust
Erik reported that on a preproduction hardware a CMCI storm triggers the BUG_ON in add_timer_on(). The reason is that the per CPU MCE timer is started by the CMCI logic before the MCE CPU hotplug callback starts the timer with add_timer_on(). So the timer is already queued which triggers the BUG. Using add_timer_on() is pretty pointless in this code because the timer is strictlty per CPU, initialized as pinned and all operations which arm the timer happen on the CPU to which the timer belongs. Simplify the whole machinery by using mod_timer() instead of add_timer_on() which avoids the problem because mod_timer() can handle already queued timers. Use __start_timer() everywhere so the earliest armed expiry time is preserved. Reported-by: Erik Veijola <erik.veijola@intel.com> Tested-by: Borislav Petkov <bp@alien8.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Borislav Petkov <bp@alien8.de> Cc: Tony Luck <tony.luck@intel.com> Link: http://lkml.kernel.org/r/alpine.DEB.2.20.1701310936080.3457@nanos Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'include/uapi/scsi/fc/fc_els.h')