diff options
| -rw-r--r-- | drivers/md/bcache/Kconfig | 9 | ||||
| -rw-r--r-- | drivers/md/bcache/super.c | 2 |
2 files changed, 11 insertions, 0 deletions
diff --git a/drivers/md/bcache/Kconfig b/drivers/md/bcache/Kconfig index 6dfa653d30db..bf7dd96db9b3 100644 --- a/drivers/md/bcache/Kconfig +++ b/drivers/md/bcache/Kconfig @@ -26,3 +26,12 @@ config BCACHE_CLOSURES_DEBUG Keeps all active closures in a linked list and provides a debugfs interface to list them, which makes it possible to see asynchronous operations that get stuck. + +config BCACHE_ASYNC_REGISTRAION + bool "Asynchronous device registration (EXPERIMENTAL)" + depends on BCACHE + help + Add a sysfs file /sys/fs/bcache/register_async. Writing registering + device path into this file will returns immediately and the real + registration work is handled in kernel work queue in asynchronous + way. diff --git a/drivers/md/bcache/super.c b/drivers/md/bcache/super.c index b971d8e916d5..f9975c22bf7e 100644 --- a/drivers/md/bcache/super.c +++ b/drivers/md/bcache/super.c @@ -2765,7 +2765,9 @@ static int __init bcache_init(void) static const struct attribute *files[] = { &ksysfs_register.attr, &ksysfs_register_quiet.attr, +#ifdef CONFIG_BCACHE_ASYNC_REGISTRAION &ksysfs_register_async.attr, +#endif &ksysfs_pendings_cleanup.attr, NULL }; |