Run shrinkers when pthread_create fails

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>

diff --git a/linux/kthread.c b/linux/kthread.c
index 134aeeef2c8125f160c1e1c7c7db4c798cf2e9e9..17830e5fd7b4b30250c49abc8ac15b2bde67742a 100644 (file)
--- a/linux/kthread.c
+++ b/linux/kthread.c
@@ -80,7 +80,13 @@ struct task_struct *kthread_create(int (*thread_fn)(void *data),
        pthread_attr_init(&attr);
        pthread_attr_setstacksize(&attr, 32 << 10);
 
-       ret = pthread_create(&p->thread, &attr, kthread_start_fn, p);
+       for (unsigned i = 0; i < 10; i++) {
+               ret = pthread_create(&p->thread, &attr, kthread_start_fn, p);
+               if (!ret)
+                       break;
+
+               run_shrinkers(GFP_KERNEL, true);
+       }
        if (ret)
                return ERR_PTR(-ret);
        pthread_setname_np(p->thread, p->comm);