diff options
Diffstat (limited to 'drivers/xen/xenbus')
| -rw-r--r-- | drivers/xen/xenbus/xenbus_dev_frontend.c | 4 | ||||
| -rw-r--r-- | drivers/xen/xenbus/xenbus_probe_backend.c | 17 |
2 files changed, 12 insertions, 9 deletions
diff --git a/drivers/xen/xenbus/xenbus_dev_frontend.c b/drivers/xen/xenbus/xenbus_dev_frontend.c index 0792fda49a..6f56640092 100644 --- a/drivers/xen/xenbus/xenbus_dev_frontend.c +++ b/drivers/xen/xenbus/xenbus_dev_frontend.c @@ -82,7 +82,7 @@ struct read_buffer { struct list_head list; unsigned int cons; unsigned int len; - char msg[]; + char msg[] __counted_by(len); }; struct xenbus_file_priv { @@ -195,7 +195,7 @@ static int queue_reply(struct list_head *queue, const void *data, size_t len) if (len > XENSTORE_PAYLOAD_MAX) return -EINVAL; - rb = kmalloc(sizeof(*rb) + len, GFP_KERNEL); + rb = kmalloc(struct_size(rb, msg, len), GFP_KERNEL); if (rb == NULL) return -ENOMEM; diff --git a/drivers/xen/xenbus/xenbus_probe_backend.c b/drivers/xen/xenbus/xenbus_probe_backend.c index da96c260e2..5ebb723307 100644 --- a/drivers/xen/xenbus/xenbus_probe_backend.c +++ b/drivers/xen/xenbus/xenbus_probe_backend.c @@ -284,13 +284,9 @@ static unsigned long backend_shrink_memory_count(struct shrinker *shrinker, return 0; } -static struct shrinker backend_memory_shrinker = { - .count_objects = backend_shrink_memory_count, - .seeks = DEFAULT_SEEKS, -}; - static int __init xenbus_probe_backend_init(void) { + struct shrinker *backend_memory_shrinker; static struct notifier_block xenstore_notifier = { .notifier_call = backend_probe_and_watch }; @@ -305,8 +301,15 @@ static int __init xenbus_probe_backend_init(void) register_xenstore_notifier(&xenstore_notifier); - if (register_shrinker(&backend_memory_shrinker, "xen-backend")) - pr_warn("shrinker registration failed\n"); + backend_memory_shrinker = shrinker_alloc(0, "xen-backend"); + if (!backend_memory_shrinker) { + pr_warn("shrinker allocation failed\n"); + return 0; + } + + backend_memory_shrinker->count_objects = backend_shrink_memory_count; + + shrinker_register(backend_memory_shrinker); return 0; } |