+++ Prarit Bhargava [30/04/19 18:22 -0400]:
On a s390 z14 LAR with 2 cpus about stalls about 3% of the time while
loading the s390_trng.ko module.
Add a reschedule point to the loop that waits for modules to complete
loading.
v3: cleanup Fixes line.
Thanks, this patch has been re-applied to modules-next.
Jessica
Reported-by: Heiko Carstens <[email protected]>
Fixes: f9a75c1d717f ("modules: Only return -EEXIST for modules that have finished
loading")
Signed-off-by: Prarit Bhargava <[email protected]>
Cc: Jessica Yu <[email protected]>
Cc: Heiko Carstens <[email protected]>
---
kernel/module.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/kernel/module.c b/kernel/module.c
index 410eeb7e4f1d..48748cfec991 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -3585,6 +3585,7 @@ static int add_unformed_module(struct module *mod)
finished_loading(mod->name));
if (err)
goto out_unlocked;
+ cond_resched();
goto again;
}
err = -EEXIST;
--
2.18.1
