perf-eh_elf/tests/mem.c

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Merge tag 'afs-fixes-20180514' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs 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
2018-05-15 19:48:36 +02:00
#include "util/mem-events.h"
#include "util/symbol.h"
#include "linux/perf_event.h"
#include "util/debug.h"
#include "tests.h"
#include <string.h>
static int check(union perf_mem_data_src data_src,
const char *string)
{
char out[100];
char failure[100];
struct mem_info mi = { .data_src = data_src };
int n;
n = perf_mem__snp_scnprintf(out, sizeof out, &mi);
n += perf_mem__lvl_scnprintf(out + n, sizeof out - n, &mi);
scnprintf(failure, sizeof failure, "unexpected %s", out);
TEST_ASSERT_VAL(failure, !strcmp(string, out));
return 0;
}
int test__mem(struct test *text __maybe_unused, int subtest __maybe_unused)
{
int ret = 0;
union perf_mem_data_src src;
memset(&src, 0, sizeof(src));
src.mem_lvl = PERF_MEM_LVL_HIT;
src.mem_lvl_num = 4;
ret |= check(src, "N/AL4 hit");
src.mem_remote = 1;
ret |= check(src, "N/ARemote L4 hit");
src.mem_lvl = PERF_MEM_LVL_MISS;
src.mem_lvl_num = PERF_MEM_LVLNUM_PMEM;
src.mem_remote = 0;
ret |= check(src, "N/APMEM miss");
src.mem_remote = 1;
ret |= check(src, "N/ARemote PMEM miss");
src.mem_snoopx = PERF_MEM_SNOOPX_FWD;
src.mem_lvl_num = PERF_MEM_LVLNUM_RAM;
ret |= check(src , "FwdRemote RAM miss");
return ret;
}