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Merge tag 'v4.9.154' of git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable into odroidn2-4.9.y

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This is the 4.9.154 stable release
This commit is contained in:
Mauro (mdrjr) Ribeiro
2019-02-13 20:10:19 -02:00
parent 33464973cc a4d0a0910e
commit c3193985da
54 changed files with 607 additions and 124 deletions
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4
tools/perf/util/unwind-libdw.c
View File

@@ -42,13 +42,13 @@ static int __report_module(struct addr_location *al, u64 ip,
Dwarf_Addr s;
dwfl_module_info(mod, NULL, &s, NULL, NULL, NULL, NULL, NULL);
if (s != al->map->start)
if (s != al->map->start - al->map->pgoff)
mod = 0;
}
if (!mod)
mod = dwfl_report_elf(ui->dwfl, dso->short_name,
dso->long_name, -1, al->map->start,
(dso->symsrc_filename ? dso->symsrc_filename : dso->long_name), -1, al->map->start - al->map->pgoff,
false);
return mod && dwfl_addrmodule(ui->dwfl, ip) == mod ? 0 : -1;

41
tools/testing/selftests/x86/protection_keys.c
View File

@@ -1129,6 +1129,21 @@ void test_pkey_syscalls_bad_args(int *ptr, u16 pkey)
pkey_assert(err);
}
void become_child(void)
{
pid_t forkret;
forkret = fork();
pkey_assert(forkret >= 0);
dprintf3("[%d] fork() ret: %d\n", getpid(), forkret);
if (!forkret) {
/* in the child */
return;
}
exit(0);
}
/* Assumes that all pkeys other than 'pkey' are unallocated */
void test_pkey_alloc_exhaust(int *ptr, u16 pkey)
{
@@ -1139,7 +1154,7 @@ void test_pkey_alloc_exhaust(int *ptr, u16 pkey)
int nr_allocated_pkeys = 0;
int i;
for (i = 0; i < NR_PKEYS*2; i++) {
for (i = 0; i < NR_PKEYS*3; i++) {
int new_pkey;
dprintf1("%s() alloc loop: %d\n", __func__, i);
new_pkey = alloc_pkey();
@@ -1150,20 +1165,26 @@ void test_pkey_alloc_exhaust(int *ptr, u16 pkey)
if ((new_pkey == -1) && (errno == ENOSPC)) {
dprintf2("%s() failed to allocate pkey after %d tries\n",
__func__, nr_allocated_pkeys);
break;
} else {
/*
* Ensure the number of successes never
* exceeds the number of keys supported
* in the hardware.
*/
pkey_assert(nr_allocated_pkeys < NR_PKEYS);
allocated_pkeys[nr_allocated_pkeys++] = new_pkey;
}
pkey_assert(nr_allocated_pkeys < NR_PKEYS);
allocated_pkeys[nr_allocated_pkeys++] = new_pkey;
/*
* Make sure that allocation state is properly
* preserved across fork().
*/
if (i == NR_PKEYS*2)
become_child();
}
dprintf3("%s()::%d\n", __func__, __LINE__);
/*
* ensure it did not reach the end of the loop without
* failure:
*/
pkey_assert(i < NR_PKEYS*2);
/*
* There are 16 pkeys supported in hardware. One is taken
* up for the default (0) and another can be taken up by