diff options
| -rw-r--r-- | drivers/md/dm-verity-target.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/drivers/md/dm-verity-target.c b/drivers/md/dm-verity-target.c index 9b87db8ef99f..981821f18a18 100644 --- a/drivers/md/dm-verity-target.c +++ b/drivers/md/dm-verity-target.c @@ -1151,6 +1151,7 @@ static int verity_ctr(struct dm_target *ti, unsigned argc, char **argv) struct dm_verity_sig_opts verify_args = {0}; struct dm_arg_set as; unsigned int num; + unsigned int wq_flags; unsigned long long num_ll; int r; int i; @@ -1388,7 +1389,16 @@ static int verity_ctr(struct dm_target *ti, unsigned argc, char **argv) } /* WQ_UNBOUND greatly improves performance when running on ramdisk */ - v->verify_wq = alloc_workqueue("kverityd", WQ_MEM_RECLAIM | WQ_UNBOUND, num_online_cpus()); + wq_flags = WQ_MEM_RECLAIM | WQ_UNBOUND; + if (v->use_tasklet) { + /* + * Allow verify_wq to preempt softirq since verification in + * tasklet will fall-back to using it for error handling + * (or if the bufio cache doesn't have required hashes). + */ + wq_flags |= WQ_HIGHPRI; + } + v->verify_wq = alloc_workqueue("kverityd", wq_flags, num_online_cpus()); if (!v->verify_wq) { ti->error = "Cannot allocate workqueue"; r = -ENOMEM; |