diff options
Diffstat (limited to 'kernel/scftorture.c')
| -rw-r--r-- | kernel/scftorture.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/kernel/scftorture.c b/kernel/scftorture.c index 5d113aa59e77..59032aaccd18 100644 --- a/kernel/scftorture.c +++ b/kernel/scftorture.c @@ -171,7 +171,8 @@ static void scf_torture_stats_print(void) scfs.n_all_wait += scf_stats_p[i].n_all_wait; } if (atomic_read(&n_errs) || atomic_read(&n_mb_in_errs) || - atomic_read(&n_mb_out_errs) || atomic_read(&n_alloc_errs)) + atomic_read(&n_mb_out_errs) || + (!IS_ENABLED(CONFIG_KASAN) && atomic_read(&n_alloc_errs))) bangstr = "!!! "; pr_alert("%s %sscf_invoked_count %s: %lld resched: %lld single: %lld/%lld single_ofl: %lld/%lld single_rpc: %lld single_rpc_ofl: %lld many: %lld/%lld all: %lld/%lld ", SCFTORT_FLAG, bangstr, isdone ? "VER" : "ver", invoked_count, scfs.n_resched, @@ -312,6 +313,7 @@ static void scf_handler_1(void *scfc_in) // Randomly do an smp_call_function*() invocation. static void scftorture_invoke_one(struct scf_statistics *scfp, struct torture_random_state *trsp) { + bool allocfail = false; uintptr_t cpu; int ret = 0; struct scf_check *scfcp = NULL; @@ -323,8 +325,10 @@ static void scftorture_invoke_one(struct scf_statistics *scfp, struct torture_ra preempt_disable(); if (scfsp->scfs_prim == SCF_PRIM_SINGLE || scfsp->scfs_wait) { scfcp = kmalloc(sizeof(*scfcp), GFP_ATOMIC); - if (WARN_ON_ONCE(!scfcp)) { + if (!scfcp) { + WARN_ON_ONCE(!IS_ENABLED(CONFIG_KASAN)); atomic_inc(&n_alloc_errs); + allocfail = true; } else { scfcp->scfc_cpu = -1; scfcp->scfc_wait = scfsp->scfs_wait; @@ -431,7 +435,9 @@ static void scftorture_invoke_one(struct scf_statistics *scfp, struct torture_ra cpus_read_unlock(); else preempt_enable(); - if (!(torture_random(trsp) & 0xfff)) + if (allocfail) + schedule_timeout_idle((1 + longwait) * HZ); // Let no-wait handlers complete. + else if (!(torture_random(trsp) & 0xfff)) schedule_timeout_uninterruptible(1); } |