Re: CK2 [03/15] slub: Use a statically allocated kmem_cache boot structure for bootstrap
From: JoonSoo Kim <hidden>
Date: 2012-10-02 14:47:37
Hi, Christoph. 2012/9/29 Christoph Lameter [off-list ref]:
quoted hunk ↗ jump to hunk
@@ -3930,6 +3905,10 @@ int __kmem_cache_create(struct kmem_cach if (err) return err; + /* Mutex is not taken during early boot */ + if (slab_state <= UP) + return 0; + mutex_unlock(&slab_mutex); err = sysfs_slab_add(s); mutex_lock(&slab_mutex);
This addition should go to previous patch "create common functions for boot slab creation". In there, create_boot_cache() call __kmem_cache_create(), and then mutex_unlock() is called without taking mutext. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>